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un-vendor urcrypt

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This commit is contained in:
Matthew LeVan 2023-09-26 16:02:36 -04:00
parent ef382a8090
commit 2f16a2dadf
152 changed files with 6 additions and 101003 deletions
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12
rust/ares/Cargo.lock generated
View File

@ -338,9 +338,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
[[package]]
name = "libc"
version = "0.2.126"
version = "0.2.148"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "349d5a591cd28b49e1d1037471617a32ddcda5731b99419008085f72d5a53836"
checksum = "9cdc71e17332e86d2e1d38c1f99edcb6288ee11b815fb1a4b049eaa2114d369b"
[[package]]
name = "log"
@ -453,18 +453,18 @@ dependencies = [
[[package]]
name = "proc-macro2"
version = "1.0.40"
version = "1.0.67"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "dd96a1e8ed2596c337f8eae5f24924ec83f5ad5ab21ea8e455d3566c69fbcaf7"
checksum = "3d433d9f1a3e8c1263d9456598b16fec66f4acc9a74dacffd35c7bb09b3a1328"
dependencies = [
"unicode-ident",
]
[[package]]
name = "quote"
version = "1.0.20"
version = "1.0.33"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3bcdf212e9776fbcb2d23ab029360416bb1706b1aea2d1a5ba002727cbcab804"
checksum = "5267fca4496028628a95160fc423a33e8b2e6af8a5302579e322e4b520293cae"
dependencies = [
"proc-macro2",
]

7
rust/ares/build.rs
View File

@ -4,7 +4,6 @@ fn main() {
println!("cargo:rerun-if-changed=build.rs");
println!("cargo:rerun-if-changed=./src/pma");
println!("cargo:rerun-if-changed=./src/urcrypt");
match profile.as_ref() {
"debug" => debug(),
@ -43,12 +42,6 @@ fn debug() {
.flag("-Wnested-externs")
.flag("-Wmissing-include-dirs")
.compile("pma_malloc");
let _urcrypt = autotools::Config::new("./src/urcrypt")
.reconf("-if")
.enable_shared()
.disable_static()
.build();
}
fn release() {

60
rust/ares/src/urcrypt/.gitignore vendored
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@ -1,60 +0,0 @@
*.pc
config.h
config.log
config.status
libtool
# the following was adapted from
# https://github.com/github/gitignore/blob/991e760c1c6d50fdda246e0178b9c58b06770b90/Autotools.gitignore
# http://www.gnu.org/software/automake
Makefile.in
build-aux/ar-lib
/mdate-sh
/py-compile
/test-driver
/ylwrap
.deps/
.dirstamp
# http://www.gnu.org/software/autoconf
autom4te.cache
/autoscan.log
/autoscan-*.log
/aclocal.m4
build-aux/compile
/config.cache
build-aux/config.guess
/config.h.in
/config.h.in~
build-aux/config.log
build-aux/config.status
build-aux/config.sub
/configure
/configure~
/configure.scan
build-aux/depcomp
build-aux/install-sh
build-aux/missing
/stamp-h1
# https://www.gnu.org/software/libtool/
build-aux/ltmain.sh
# http://www.gnu.org/software/m4/
build-aux/m4/libtool.m4
build-aux/m4/ltoptions.m4
build-aux/m4/ltsugar.m4
build-aux/m4/ltversion.m4
build-aux/m4/lt~obsolete.m4
# Generated Makefile
# (meta build system like autotools,
# can automatically generate from config.status script
# (which is called by configure script))
Makefile

130
rust/ares/src/urcrypt/Makefile.am
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@ -1,130 +0,0 @@
ACLOCAL_AMFLAGS = -I build-aux/m4
AM_CFLAGS = -Wall -g -O3
lib_LTLIBRARIES = liburcrypt.la
noinst_LTLIBRARIES = libed25519.la \
libge_additions.la \
libargon2.la \
libkeccak_tiny.la \
libscrypt.la
include_HEADERS = urcrypt/urcrypt.h
noinst_HEADERS = urcrypt/util.h \
ed25519/src/ed25519.h \
ed25519/src/ge.h \
ge-additions/ge-additions.h \
argon2/include/argon2.h \
argon2/src/blake2/blake2.h \
scrypt/sha256.h \
scrypt/libscrypt.h
# main library
pkgconfig_DATA = liburcrypt-$(URCRYPT_API_VERSION).pc
DISTCLEANFILES = $(pkgconfig_DATA)
liburcrypt_la_CPPFLAGS = -I$(srcdir)/ed25519/src \
-I$(srcdir)/ge-additions \
-I$(srcdir)/argon2/include \
-I$(srcdir)/argon2/src/blake2 \
-I$(srcdir)/keccak-tiny \
-I$(srcdir)/scrypt
liburcrypt_la_LIBADD = $(LIBCRYPTO_LIBS) \
$(LIBSECP256K1_LIBS) \
$(LIBAES_SIV_LIBS) \
libed25519.la \
libge_additions.la \
libargon2.la \
libkeccak_tiny.la \
libscrypt.la
liburcrypt_la_CFLAGS = $(LIBCRYPTO_CFLAGS) \
$(LIBSECP256K1_CFLAGS) \
$(LIBAES_SIV_CFLAGS)
# urcrypt_ is used for public symbols, urcrypt__ for internal.
liburcrypt_la_LDFLAGS = -export-symbols-regex '^urcrypt_[^_]' \
-version-info $(URCRYPT_LT_VERSION)
liburcrypt_la_SOURCES = urcrypt/aes_cbc.c \
urcrypt/aes_ecb.c \
urcrypt/aes_siv.c \
urcrypt/argon.c \
urcrypt/ed25519.c \
urcrypt/ge_additions.c \
urcrypt/ripemd.c \
urcrypt/scrypt.c \
urcrypt/keccak.c \
urcrypt/secp256k1.c \
urcrypt/sha.c \
urcrypt/util.c \
urcrypt/util.h
# ed25519
libed25519_la_CFLAGS = -Wno-unused-result
libed25519_la_SOURCES = ed25519/src/fixedint.h \
ed25519/src/sha512.h \
ed25519/src/fe.h \
ed25519/src/precomp_data.h \
ed25519/src/sc.h \
ed25519/src/add_scalar.c \
ed25519/src/keypair.c \
ed25519/src/sc.c \
ed25519/src/seed.c \
ed25519/src/verify.c \
ed25519/src/ge.c \
ed25519/src/fe.c \
ed25519/src/key_exchange.c \
ed25519/src/sha512.c \
ed25519/src/sign.c
# ge-additions
libge_additions_la_CPPFLAGS = -I$(srcdir)/ed25519/src
libge_additions_la_CFLAGS = -Werror -pedantic -std=gnu99
libge_additions_la_SOURCES = ge-additions/ge-additions.c
# argon2
libargon2_la_CPPFLAGS = -I$(srcdir)/argon2/include -DARGON2_NO_THREADS
libargon2_la_CFLAGS = -Wno-unused-value -Wno-unused-function
libargon2_la_SOURCES = argon2/src/core.h \
argon2/src/thread.h \
argon2/src/encoding.h \
argon2/src/blake2/blake2-impl.h \
argon2/src/blake2/blamka-round-opt.h \
argon2/src/blake2/blamka-round-ref.h \
argon2/src/argon2.c \
argon2/src/core.c \
argon2/src/blake2/blake2b.c \
argon2/src/thread.c \
argon2/src/encoding.c
# argon2 different sources for different CPU architectures
# opt.c requires SSE instructions and won't work on AArch64 et al.
if ARCH_X86_64
libargon2_la_SOURCES += \
argon2/src/opt.c
endif
if ARCH_GENERIC
libargon2_la_SOURCES += \
argon2/src/ref.c
endif
# scrypt
libscrypt_la_CPPFLAGS = -D_FORTIFY_SOURCE=2
libscrypt_la_SOURCES = scrypt/b64.c \
scrypt/crypto-mcf.c \
scrypt/crypto-scrypt-saltgen.c \
scrypt/crypto_scrypt-check.c \
scrypt/crypto_scrypt-hash.c \
scrypt/crypto_scrypt-hexconvert.c \
scrypt/crypto_scrypt-nosse.c \
scrypt/main.c \
scrypt/sha256.c \
scrypt/slowequals.c \
scrypt/b64.h \
scrypt/crypto_scrypt-hexconvert.h \
scrypt/slowequals.h \
scrypt/sysendian.h
# keccak-tiny
libkeccak_tiny_la_CFLAGS = -march=native -std=c11 -Wextra -Wpedantic -Wall
libkeccak_tiny_la_SOURCES = keccak-tiny/keccak-tiny.c \
keccak-tiny/define-macros.h \
keccak-tiny/keccak-tiny.h

36
rust/ares/src/urcrypt/README.md
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@ -1,36 +0,0 @@
What is urcrypt?
----------------
urcrypt is a library of cryptography routines used by urbit jets.
Why is urcrypt?
---------------
Urbit's C runtime (long the only urbit runtime) has accumulated a collection of
cryptography dependencies, some with custom additions or patches. These
libraries have different conventions and have been managed by u3 in an ad-hoc
manner. Reproducing that arrangement in other runtimes is tricky and
error-prone. The (sometimes inconsistent) logic must be reproduced and suitable
cryptography primitives must be found (or worse, written) for the new
environment.
To ease these burdens, urcrypt isolates the quirks behind a consistent calling
convention. Everything is a little-endian byte array, and each jetted operation
has a corresponding function in the library. Jets simply unpack their nouns,
call urcrypt, and pack the results.
What is a cryptography routine?
-------------------------------
This is more of a subjective question than it might appear. Any of the following
conditions are sufficient, but not necessary, for a function to be included in
urcrypt:
* The routine is sensitive to side-channel attacks (encryption, etc)
* Some property of the routine is cryptographically useful (SHA, RIPE, etc)
* The routine typically lives in a crypto library, for whatever reason.
A word on OpenSSL
-----------------
Urcrypt depends on OpenSSL's libcrypto, which has global state. In order
to avoid dealing with this state, urcrypt refuses to build with an internal
libcrypto. Either build statically (pass `--disable-shared` to `./configure`)
or provide a shared libcrypto for urcrypt to link against. It is the library
user's responsibility to initialize openssl, set custom memory functions, etc.

10
rust/ares/src/urcrypt/argon2/.gitattributes vendored
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@ -1,10 +0,0 @@
# Export ignore
.gitattributes export-ignore
.gitignore export-ignore
.travis.yml export-ignore
appveyor.yml export-ignore
export.sh export-ignore
latex/* export-ignore
# Linguist documentation
latex/* linguist-documentation

21
rust/ares/src/urcrypt/argon2/.gitignore vendored
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@ -1,21 +0,0 @@
argon2
libargon2.a
libargon2.so*
libargon2.dylib
.DS_Store
src/*.o
src/blake2/*.o
genkat
.idea
*.pyc
testcase
*.gcda
*.gcno
*.gcov
bench
vs2015/build
Argon2.sdf
Argon2.VC.opendb
*.zip
*.tar.gz
tags

25
rust/ares/src/urcrypt/argon2/.travis.yml
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@ -1,25 +0,0 @@
language: c
compiler:
- clang
- gcc
os:
- linux
- osx
# Clang on Linux needs to run in a VM to use ASAN.
# See: https://github.com/travis-ci/travis-ci/issues/9033
matrix:
exclude:
- compiler: clang
os: linux
include:
- compiler: clang
os: linux
sudo: true
script: make && make testci
after_success:
- bash <(curl -s https://codecov.io/bash)

160
rust/ares/src/urcrypt/argon2/Argon2.sln
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@ -1,160 +0,0 @@

Microsoft Visual Studio Solution File, Format Version 12.00
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32
rust/ares/src/urcrypt/argon2/CHANGELOG.md
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@ -1,32 +0,0 @@
# 20171227
* Added ABI version number
* AVX2/AVX-512F optimizations of BLAMKA
* Set Argon2 version number from the command line
* New bindings
* Minor bug and warning fixes (no security issue)
# 20161029
* Argon2id added
* Better documentation
* Dual licensing CC0 / Apache 2.0
* Minor bug fixes (no security issue)
# 20160406
* Version 1.3 of Argon2
* Version number in encoded hash
* Refactored low-level API
* Visibility control for library symbols
* Microsoft Visual Studio solution
* New bindings
* Minor bug and warning fixes (no security issue)
# 20151206
* Python bindings
* Password read from stdin, instead of being an argument
* Compatibility FreeBSD, NetBSD, OpenBSD
* Constant-time verification
* Minor bug and warning fixes (no security issue)

314
rust/ares/src/urcrypt/argon2/LICENSE
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@ -1,314 +0,0 @@
Argon2 reference source code package - reference C implementations
Copyright 2015
Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
You may use this work under the terms of a Creative Commons CC0 1.0
License/Waiver or the Apache Public License 2.0, at your option. The terms of
these licenses can be found at:
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The terms of the licenses are reproduced below.
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30
rust/ares/src/urcrypt/argon2/README.md
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@ -1,30 +0,0 @@
# Argon2
This is a fork of [the reference C implementation of Argon2](https://github.com/P-H-C/phc-winner-argon2), the password-hashing function that won the [Password Hashing Competition (PHC)](https://password-hashing.net).
## About Argon2u
In addition to the official three variants (Argon2i, Argon2d, and Argon2id), this fork also implements a fourth variant, Argon2u. It operates similarly to Argon2id, in that it is a hybrid of Argon2i and Argon2d. Where Argon2id uses Argon2i's algorithm for the first two processed segments, Argon2u does this for the first three.
## More about Argon2
Please see the [original repository](https://github.com/P-H-C/phc-winner-argon2) for information about Argon2.
## Intellectual property
Except for the components listed below, the Argon2 code in this
repository is copyright (c) 2015 Daniel Dinu, Dmitry Khovratovich (main
authors), Jean-Philippe Aumasson and Samuel Neves, and dual licensed under the
[CC0 License](https://creativecommons.org/about/cc0) and the
[Apache 2.0 License](http://www.apache.org/licenses/LICENSE-2.0). For more info
see the LICENSE file.
The string encoding routines in [`src/encoding.c`](src/encoding.c) are
copyright (c) 2015 Thomas Pornin, and under
[CC0 License](https://creativecommons.org/about/cc0).
The BLAKE2 code in [`src/blake2/`](src/blake2) is copyright (c) Samuel
Neves, 2013-2015, and under
[CC0 License](https://creativecommons.org/about/cc0).
All licenses are therefore GPL-compatible.

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rust/ares/src/urcrypt/argon2/appveyor.yml
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@ -1,25 +0,0 @@
os: Visual Studio 2015
environment:
matrix:
- platform: x86
configuration: Debug
- platform: x86
configuration: Release
- platform: x64
configuration: Debug
- platform: x64
configuration: Release
matrix:
fast_finish: false
build:
parallel: true
project: Argon2.sln
verbosity: minimal
test_script:
- ps: kats\test.ps1
- ps: if ("Release" -eq $env:configuration) { vs2015\build\Argon2OptTestCI.exe }
- ps: if ("Release" -eq $env:configuration) { vs2015\build\Argon2RefTestCI.exe }

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rust/ares/src/urcrypt/argon2/argon2-specs.pdf
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rust/ares/src/urcrypt/argon2/export.sh
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#!/bin/sh
FILE=`date "+%Y%m%d"`
BRANCH=master
git archive --format zip --output $FILE.zip $BRANCH
git archive --format tar.gz --output $FILE.tar.gz $BRANCH

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rust/ares/src/urcrypt/argon2/include/argon2.h
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/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#ifndef ARGON2_H
#define ARGON2_H
#include <stdint.h>
#include <stddef.h>
#include <limits.h>
#if defined(__cplusplus)
extern "C" {
#endif
/* Symbols visibility control */
#ifdef A2_VISCTL
#define ARGON2_PUBLIC __attribute__((visibility("default")))
#define ARGON2_LOCAL __attribute__ ((visibility ("hidden")))
#elif _MSC_VER
#define ARGON2_PUBLIC __declspec(dllexport)
#define ARGON2_LOCAL
#else
#define ARGON2_PUBLIC
#define ARGON2_LOCAL
#endif
/*
* Argon2 input parameter restrictions
*/
/* Minimum and maximum number of lanes (degree of parallelism) */
#define ARGON2_MIN_LANES UINT32_C(1)
#define ARGON2_MAX_LANES UINT32_C(0xFFFFFF)
/* Minimum and maximum number of threads */
#define ARGON2_MIN_THREADS UINT32_C(1)
#define ARGON2_MAX_THREADS UINT32_C(0xFFFFFF)
/* Number of synchronization points between lanes per pass */
#define ARGON2_SYNC_POINTS UINT32_C(4)
/* Minimum and maximum digest size in bytes */
#define ARGON2_MIN_OUTLEN UINT32_C(4)
#define ARGON2_MAX_OUTLEN UINT32_C(0xFFFFFFFF)
/* Minimum and maximum number of memory blocks (each of BLOCK_SIZE bytes) */
#define ARGON2_MIN_MEMORY (2 * ARGON2_SYNC_POINTS) /* 2 blocks per slice */
#define ARGON2_MIN(a, b) ((a) < (b) ? (a) : (b))
/* Max memory size is addressing-space/2, topping at 2^32 blocks (4 TB) */
#define ARGON2_MAX_MEMORY_BITS \
ARGON2_MIN(UINT32_C(32), (sizeof(void *) * CHAR_BIT - 10 - 1))
#define ARGON2_MAX_MEMORY \
ARGON2_MIN(UINT32_C(0xFFFFFFFF), UINT64_C(1) << ARGON2_MAX_MEMORY_BITS)
/* Minimum and maximum number of passes */
#define ARGON2_MIN_TIME UINT32_C(1)
#define ARGON2_MAX_TIME UINT32_C(0xFFFFFFFF)
/* Minimum and maximum password length in bytes */
#define ARGON2_MIN_PWD_LENGTH UINT32_C(0)
#define ARGON2_MAX_PWD_LENGTH UINT32_C(0xFFFFFFFF)
/* Minimum and maximum associated data length in bytes */
#define ARGON2_MIN_AD_LENGTH UINT32_C(0)
#define ARGON2_MAX_AD_LENGTH UINT32_C(0xFFFFFFFF)
/* Minimum and maximum salt length in bytes */
#define ARGON2_MIN_SALT_LENGTH UINT32_C(8)
#define ARGON2_MAX_SALT_LENGTH UINT32_C(0xFFFFFFFF)
/* Minimum and maximum key length in bytes */
#define ARGON2_MIN_SECRET UINT32_C(0)
#define ARGON2_MAX_SECRET UINT32_C(0xFFFFFFFF)
/* Flags to determine which fields are securely wiped (default = no wipe). */
#define ARGON2_DEFAULT_FLAGS UINT32_C(0)
#define ARGON2_FLAG_CLEAR_PASSWORD (UINT32_C(1) << 0)
#define ARGON2_FLAG_CLEAR_SECRET (UINT32_C(1) << 1)
/* Global flag to determine if we are wiping internal memory buffers. This flag
* is defined in core.c and deafults to 1 (wipe internal memory). */
extern int FLAG_clear_internal_memory;
/* Error codes */
typedef enum Argon2_ErrorCodes {
ARGON2_OK = 0,
ARGON2_OUTPUT_PTR_NULL = -1,
ARGON2_OUTPUT_TOO_SHORT = -2,
ARGON2_OUTPUT_TOO_LONG = -3,
ARGON2_PWD_TOO_SHORT = -4,
ARGON2_PWD_TOO_LONG = -5,
ARGON2_SALT_TOO_SHORT = -6,
ARGON2_SALT_TOO_LONG = -7,
ARGON2_AD_TOO_SHORT = -8,
ARGON2_AD_TOO_LONG = -9,
ARGON2_SECRET_TOO_SHORT = -10,
ARGON2_SECRET_TOO_LONG = -11,
ARGON2_TIME_TOO_SMALL = -12,
ARGON2_TIME_TOO_LARGE = -13,
ARGON2_MEMORY_TOO_LITTLE = -14,
ARGON2_MEMORY_TOO_MUCH = -15,
ARGON2_LANES_TOO_FEW = -16,
ARGON2_LANES_TOO_MANY = -17,
ARGON2_PWD_PTR_MISMATCH = -18, /* NULL ptr with non-zero length */
ARGON2_SALT_PTR_MISMATCH = -19, /* NULL ptr with non-zero length */
ARGON2_SECRET_PTR_MISMATCH = -20, /* NULL ptr with non-zero length */
ARGON2_AD_PTR_MISMATCH = -21, /* NULL ptr with non-zero length */
ARGON2_MEMORY_ALLOCATION_ERROR = -22,
ARGON2_FREE_MEMORY_CBK_NULL = -23,
ARGON2_ALLOCATE_MEMORY_CBK_NULL = -24,
ARGON2_INCORRECT_PARAMETER = -25,
ARGON2_INCORRECT_TYPE = -26,
ARGON2_OUT_PTR_MISMATCH = -27,
ARGON2_THREADS_TOO_FEW = -28,
ARGON2_THREADS_TOO_MANY = -29,
ARGON2_MISSING_ARGS = -30,
ARGON2_ENCODING_FAIL = -31,
ARGON2_DECODING_FAIL = -32,
ARGON2_THREAD_FAIL = -33,
ARGON2_DECODING_LENGTH_FAIL = -34,
ARGON2_VERIFY_MISMATCH = -35
} argon2_error_codes;
/* Memory allocator types --- for external allocation */
typedef int (*allocate_fptr)(uint8_t **memory, size_t bytes_to_allocate);
typedef void (*deallocate_fptr)(uint8_t *memory, size_t bytes_to_allocate);
/* Argon2 external data structures */
/*
*****
* Context: structure to hold Argon2 inputs:
* output array and its length,
* password and its length,
* salt and its length,
* secret and its length,
* associated data and its length,
* number of passes, amount of used memory (in KBytes, can be rounded up a bit)
* number of parallel threads that will be run.
* All the parameters above affect the output hash value.
* Additionally, two function pointers can be provided to allocate and
* deallocate the memory (if NULL, memory will be allocated internally).
* Also, three flags indicate whether to erase password, secret as soon as they
* are pre-hashed (and thus not needed anymore), and the entire memory
*****
* Simplest situation: you have output array out[8], password is stored in
* pwd[32], salt is stored in salt[16], you do not have keys nor associated
* data. You need to spend 1 GB of RAM and you run 5 passes of Argon2d with
* 4 parallel lanes.
* You want to erase the password, but you're OK with last pass not being
* erased. You want to use the default memory allocator.
* Then you initialize:
Argon2_Context(out,8,pwd,32,salt,16,NULL,0,NULL,0,5,1<<20,4,4,NULL,NULL,true,false,false,false)
*/
typedef struct Argon2_Context {
uint8_t *out; /* output array */
uint32_t outlen; /* digest length */
uint8_t *pwd; /* password array */
uint32_t pwdlen; /* password length */
uint8_t *salt; /* salt array */
uint32_t saltlen; /* salt length */
uint8_t *secret; /* key array */
uint32_t secretlen; /* key length */
uint8_t *ad; /* associated data array */
uint32_t adlen; /* associated data length */
uint32_t t_cost; /* number of passes */
uint32_t m_cost; /* amount of memory requested (KB) */
uint32_t lanes; /* number of lanes */
uint32_t threads; /* maximum number of threads */
uint32_t version; /* version number */
allocate_fptr allocate_cbk; /* pointer to memory allocator */
deallocate_fptr free_cbk; /* pointer to memory deallocator */
uint32_t flags; /* array of bool options */
} argon2_context;
/* Argon2 primitive type */
typedef enum Argon2_type {
Argon2_d = 0,
Argon2_i = 1,
Argon2_id = 2,
Argon2_u = 10
} argon2_type;
/* Version of the algorithm */
typedef enum Argon2_version {
ARGON2_VERSION_10 = 0x10,
ARGON2_VERSION_13 = 0x13,
ARGON2_VERSION_NUMBER = ARGON2_VERSION_13
} argon2_version;
/*
* Function that gives the string representation of an argon2_type.
* @param type The argon2_type that we want the string for
* @param uppercase Whether the string should have the first letter uppercase
* @return NULL if invalid type, otherwise the string representation.
*/
ARGON2_PUBLIC const char *argon2_type2string(argon2_type type, int uppercase);
/*
* Function that performs memory-hard hashing with certain degree of parallelism
* @param context Pointer to the Argon2 internal structure
* @return Error code if smth is wrong, ARGON2_OK otherwise
*/
ARGON2_PUBLIC int argon2_ctx(argon2_context *context, argon2_type type);
/**
* Hashes a password with Argon2i, producing an encoded hash
* @param t_cost Number of iterations
* @param m_cost Sets memory usage to m_cost kibibytes
* @param parallelism Number of threads and compute lanes
* @param pwd Pointer to password
* @param pwdlen Password size in bytes
* @param salt Pointer to salt
* @param saltlen Salt size in bytes
* @param hashlen Desired length of the hash in bytes
* @param encoded Buffer where to write the encoded hash
* @param encodedlen Size of the buffer (thus max size of the encoded hash)
* @pre Different parallelism levels will give different results
* @pre Returns ARGON2_OK if successful
*/
ARGON2_PUBLIC int argon2i_hash_encoded(const uint32_t t_cost,
const uint32_t m_cost,
const uint32_t parallelism,
const void *pwd, const size_t pwdlen,
const void *salt, const size_t saltlen,
const size_t hashlen, char *encoded,
const size_t encodedlen);
/**
* Hashes a password with Argon2i, producing a raw hash at @hash
* @param t_cost Number of iterations
* @param m_cost Sets memory usage to m_cost kibibytes
* @param parallelism Number of threads and compute lanes
* @param pwd Pointer to password
* @param pwdlen Password size in bytes
* @param salt Pointer to salt
* @param saltlen Salt size in bytes
* @param hash Buffer where to write the raw hash - updated by the function
* @param hashlen Desired length of the hash in bytes
* @pre Different parallelism levels will give different results
* @pre Returns ARGON2_OK if successful
*/
ARGON2_PUBLIC int argon2i_hash_raw(const uint32_t t_cost, const uint32_t m_cost,
const uint32_t parallelism, const void *pwd,
const size_t pwdlen, const void *salt,
const size_t saltlen, void *hash,
const size_t hashlen);
ARGON2_PUBLIC int argon2d_hash_encoded(const uint32_t t_cost,
const uint32_t m_cost,
const uint32_t parallelism,
const void *pwd, const size_t pwdlen,
const void *salt, const size_t saltlen,
const size_t hashlen, char *encoded,
const size_t encodedlen);
ARGON2_PUBLIC int argon2d_hash_raw(const uint32_t t_cost, const uint32_t m_cost,
const uint32_t parallelism, const void *pwd,
const size_t pwdlen, const void *salt,
const size_t saltlen, void *hash,
const size_t hashlen);
ARGON2_PUBLIC int argon2id_hash_encoded(const uint32_t t_cost,
const uint32_t m_cost,
const uint32_t parallelism,
const void *pwd, const size_t pwdlen,
const void *salt, const size_t saltlen,
const size_t hashlen, char *encoded,
const size_t encodedlen);
ARGON2_PUBLIC int argon2id_hash_raw(const uint32_t t_cost,
const uint32_t m_cost,
const uint32_t parallelism, const void *pwd,
const size_t pwdlen, const void *salt,
const size_t saltlen, void *hash,
const size_t hashlen);
ARGON2_PUBLIC int argon2u_hash_encoded(const uint32_t t_cost,
const uint32_t m_cost,
const uint32_t parallelism,
const void *pwd, const size_t pwdlen,
const void *salt, const size_t saltlen,
const size_t hashlen, char *encoded,
const size_t encodedlen);
ARGON2_PUBLIC int argon2u_hash_raw(const uint32_t t_cost, const uint32_t m_cost,
const uint32_t parallelism, const void *pwd,
const size_t pwdlen, const void *salt,
const size_t saltlen, void *hash,
const size_t hashlen);
/* generic function underlying the above ones */
ARGON2_PUBLIC int argon2_hash(const uint32_t t_cost, const uint32_t m_cost,
const uint32_t parallelism, const void *pwd,
const size_t pwdlen, const void *salt,
const size_t saltlen, void *hash,
const size_t hashlen, char *encoded,
const size_t encodedlen, argon2_type type,
const uint32_t version);
/**
* Verifies a password against an encoded string
* Encoded string is restricted as in validate_inputs()
* @param encoded String encoding parameters, salt, hash
* @param pwd Pointer to password
* @pre Returns ARGON2_OK if successful
*/
ARGON2_PUBLIC int argon2i_verify(const char *encoded, const void *pwd,
const size_t pwdlen);
ARGON2_PUBLIC int argon2d_verify(const char *encoded, const void *pwd,
const size_t pwdlen);
ARGON2_PUBLIC int argon2id_verify(const char *encoded, const void *pwd,
const size_t pwdlen);
ARGON2_PUBLIC int argon2u_verify(const char *encoded, const void *pwd,
const size_t pwdlen);
/* generic function underlying the above ones */
ARGON2_PUBLIC int argon2_verify(const char *encoded, const void *pwd,
const size_t pwdlen, argon2_type type);
/**
* Argon2d: Version of Argon2 that picks memory blocks depending
* on the password and salt. Only for side-channel-free
* environment!!
*****
* @param context Pointer to current Argon2 context
* @return Zero if successful, a non zero error code otherwise
*/
ARGON2_PUBLIC int argon2d_ctx(argon2_context *context);
/**
* Argon2i: Version of Argon2 that picks memory blocks
* independent on the password and salt. Good for side-channels,
* but worse w.r.t. tradeoff attacks if only one pass is used.
*****
* @param context Pointer to current Argon2 context
* @return Zero if successful, a non zero error code otherwise
*/
ARGON2_PUBLIC int argon2i_ctx(argon2_context *context);
/**
* Argon2id: Version of Argon2 where the first half-pass over memory is
* password-independent, the rest are password-dependent (on the password and
* salt). OK against side channels (they reduce to 1/2-pass Argon2i), and
* better with w.r.t. tradeoff attacks (similar to Argon2d).
*****
* @param context Pointer to current Argon2 context
* @return Zero if successful, a non zero error code otherwise
*/
ARGON2_PUBLIC int argon2id_ctx(argon2_context *context);
/**
* Argon2u: Version of Argon2 where the first three-quarter-pass over memory is
* password-independent, the rest are password-dependent (on the password and
* salt). OK against side channels (they reduce to 3/4-pass Argon2i), and
* better with w.r.t. tradeoff attacks (similar to Argon2d).
*****
* @param context Pointer to current Argon2 context
* @return Zero if successful, a non zero error code otherwise
*/
ARGON2_PUBLIC int argon2u_ctx(argon2_context *context);
/**
* Verify if a given password is correct for Argon2d hashing
* @param context Pointer to current Argon2 context
* @param hash The password hash to verify. The length of the hash is
* specified by the context outlen member
* @return Zero if successful, a non zero error code otherwise
*/
ARGON2_PUBLIC int argon2d_verify_ctx(argon2_context *context, const char *hash);
/**
* Verify if a given password is correct for Argon2i hashing
* @param context Pointer to current Argon2 context
* @param hash The password hash to verify. The length of the hash is
* specified by the context outlen member
* @return Zero if successful, a non zero error code otherwise
*/
ARGON2_PUBLIC int argon2i_verify_ctx(argon2_context *context, const char *hash);
/**
* Verify if a given password is correct for Argon2id hashing
* @param context Pointer to current Argon2 context
* @param hash The password hash to verify. The length of the hash is
* specified by the context outlen member
* @return Zero if successful, a non zero error code otherwise
*/
ARGON2_PUBLIC int argon2id_verify_ctx(argon2_context *context,
const char *hash);
/**
* Verify if a given password is correct for Argon2u hashing
* @param context Pointer to current Argon2 context
* @param hash The password hash to verify. The length of the hash is
* specified by the context outlen member
* @return Zero if successful, a non zero error code otherwise
*/
ARGON2_PUBLIC int argon2u_verify_ctx(argon2_context *context, const char *hash);
/* generic function underlying the above ones */
ARGON2_PUBLIC int argon2_verify_ctx(argon2_context *context, const char *hash,
argon2_type type);
/**
* Get the associated error message for given error code
* @return The error message associated with the given error code
*/
ARGON2_PUBLIC const char *argon2_error_message(int error_code);
/**
* Returns the encoded hash length for the given input parameters
* @param t_cost Number of iterations
* @param m_cost Memory usage in kibibytes
* @param parallelism Number of threads; used to compute lanes
* @param saltlen Salt size in bytes
* @param hashlen Hash size in bytes
* @param type The argon2_type that we want the encoded length for
* @return The encoded hash length in bytes
*/
ARGON2_PUBLIC size_t argon2_encodedlen(uint32_t t_cost, uint32_t m_cost,
uint32_t parallelism, uint32_t saltlen,
uint32_t hashlen, argon2_type type);
#if defined(__cplusplus)
}
#endif
#endif

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73619cfe0f35e52fdd1ca2595ffaa359879467407f98b61f4969c2861cc329ce argon2d

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4ec4569a016c3accc6a25a34252b03a6135939b3c452389917a3f3b65878165b argon2d_v16

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40a3aeafb092d10cf457a8ee0139c114c911ecf97bd5accf5a99c7ddd6917061 argon2i

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334f03e627afb67b946a530b90d2e11fb2e6abb44df992c0fb3198c7bacf5930 argon2i_v16

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ba05643e504fc5778dda99e2d9f42ebe7d22ebb3923cc719fd591b1b14a8d28d argon2id

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Set-Variable tempfile -option Constant -value "tempfile"
function hash($path) {
$fullPath = Resolve-Path $path
$hash = new-object -TypeName System.Security.Cryptography.SHA256CryptoServiceProvider
$contents = [IO.File]::ReadAllText($fullPath) -replace "`r`n?", "`n"
# create UTF-8 encoding without signature
$utf8 = New-Object System.Text.UTF8Encoding $false
# write the text back
[IO.File]::WriteAllText($tempfile, $contents, $utf8)
$file = [System.IO.File]::Open($tempfile,[System.IO.Filemode]::Open, [System.IO.FileAccess]::Read)
$result = [System.BitConverter]::ToString($hash.ComputeHash($file))
$file.Dispose()
if (Test-Path $tempfile) {
Remove-Item $tempfile
}
return $result
}
function main() {
$files = $(Get-ChildItem * | Where-Object { $_.Name -match '^[a-z2]*(_v)?[0-9]*$' } | select -ExpandProperty name)
foreach ($file in $files) {
$new = $(hash $file).replace("-","")
$new = $new.ToLower()
$old=$(Get-Content $file".shasum")
$old = $old.Substring(0, $old.IndexOf(" "))
if ($new -eq $old) {
Write-Host $file "`tOK"
} else {
Write-Host $file "`tERROR"
}
}
}
main

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rust/ares/src/urcrypt/argon2/kats/check-sums.sh
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#!/bin/sh
for file in `ls | grep '^[a-z2]*\(_v\)\?[0-9]*$' | xargs`
do
new=`shasum -a 256 $file`
old=`cat $file.shasum`
if [ "$new" = "$old" ]
then
echo $file "\t" OK
else
echo $file "\t" ERROR
fi
done

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$ErrorActionPreference = "Stop"
Set-Variable tempfile -option Constant -value "tempfile"
function CompareFiles($f1, $f2, $i) {
$f1_content = $(Get-Content $f1)
$f2_content = $(Get-Content $f2)
if (Compare-Object $f1_content $f2_content) {
Write-Host -NoNewline "ERROR"
exit $i
} else {
Write-Host -NoNewline "OK"
}
}
function main() {
$i = 0
foreach ($opt in @("Ref", "Opt")) {
Write-Output "$opt"
foreach ($version in @(16, 19)) {
foreach ($type in @("i", "d", "id")) {
$i++
if ("Ref" -eq $opt) {
vs2015\build\Argon2RefGenKAT.exe $type $version > $tempfile
} else {
vs2015\build\Argon2OptGenKAT.exe $type $version > $tempfile
}
if (19 -eq $version) {
$kats = "kats\argon2" + $type
} else {
$kats = "kats\argon2" + $type + "_v" + $version
}
Write-Host -NoNewline "Argon2$type v=$version : "
CompareFiles $tempfile $kats $i
Write-Output ""
}
}
}
if (Test-Path $tempfile) {
Remove-Item $tempfile
}
}
main

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#!/bin/sh
for opttest in "" "OPTTEST=1"
do
if [ "" = "$opttest" ]
then
printf "Default build\n"
else
printf "Force OPTTEST=1\n"
fi
make genkat $opttest > /dev/null
if [ $? -ne 0 ]
then
exit $?
fi
i=0
for version in 16 19
do
for type in i d id
do
i=$(($i+1))
printf "argon2$type v=$version: "
if [ 19 -eq $version ]
then
kats="kats/argon2"$type
else
kats="kats/argon2"$type"_v"$version
fi
./genkat $type $version > tmp
if diff tmp $kats
then
printf "OK"
else
printf "ERROR"
exit $i
fi
printf "\n"
done
done
done
rm -f tmp
exit 0

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\documentclass[a4paper]{article}
\usepackage[hmargin=2cm,vmargin=2cm]{geometry}
\pagestyle{plain}
\usepackage{amssymb,amsthm,amsfonts,longtable, comment,array, ifpdf, hyperref,cite,url}
\usepackage{graphicx}
\newtheorem{theorem}{Theorem}
\newtheorem{lemma}{Lemma}
\newcommand{\Tag}{\mathrm{Tag}}
% *** MATH PACKAGES ***
%
\usepackage[cmex10]{amsmath}
% *** SPECIALIZED LIST PACKAGES ***
%
\usepackage{algorithmic}
\begin{document}
%FINISHED
\title{\textsf{Argon2: the memory-hard function for password hashing and other applications}}
\author{Designers: Alex Biryukov, Daniel Dinu, and Dmitry Khovratovich\\University of Luxembourg, Luxembourg
\\[10pt]
%Submitters: Alex Biryukov and Dmitry Khovratovich
%\\
{\tt alex.biryukov@uni.lu, dumitru-daniel.dinu@uni.lu, khovratovich@gmail.com}\\[10 pt]
\url{https://www.cryptolux.org/index.php/Argon2}\\
\url{https://github.com/P-H-C/phc-winner-argon2}\\
\url{https://github.com/khovratovich/Argon2}\\[10pt]
Version 1.3 of Argon2: PHC release}
\maketitle
\tableofcontents
\section{Introduction}
Passwords, despite all their drawbacks, remain the primary form of authentication on various web-services. Passwords are usually stored in a hashed form in a server's database. These databases are quite often captured by the adversaries, who then apply dictionary attacks since passwords tend to have low entropy. Protocol designers use a number of tricks to mitigate these issues. Starting from the late 70's, a password is hashed together with a random \emph{salt} value to prevent detection of identical passwords across different users and services. The hash function computations, which became faster and faster due to Moore's law have been called multiple times to increase the cost of password trial for the attacker.
In the meanwhile, the password crackers migrated to new architectures, such as FPGAs, multiple-core GPUs and dedicated ASIC modules, where the amortized cost of a multiple-iterated hash function is much lower. It was quickly noted that these new environments are great when the computation is almost memoryless, but they experience difficulties when operating on a large amount of memory. The defenders responded by designing \emph{memory-hard} functions, which require a large amount of memory to be computed, and impose computational penalties if less memory is used. The password hashing scheme \textsf{scrypt}~\cite{percival2009stronger} is an instance of such function.
Memory-hard schemes also have other applications. They can be used for key derivation from low-entropy sources. Memory-hard schemes are also welcome in cryptocurrency designs~\cite{litecoin} if a creator wants to demotivate the use of GPUs and ASICs for mining and promote the use of standard desktops.
\paragraph{Problems of existing schemes} A trivial solution for password hashing is a keyed hash function such as HMAC. If the protocol designer prefers hashing without secret keys to avoid all the problems with key generation, storage, and update, then he has few alternatives: the generic mode PBKDF2, the Blowfish-based \textsf{bcrypt}, and \textsf{scrypt}. Among those, only
\textsf{scrypt} aims for high memory, but the existence of a trivial time-memory tradeoff~\cite{ForlerLW14} allows compact implementations with the same energy cost.
Design of a memory-hard function proved to be a tough problem. Since early 80's it has been known that many cryptographic problems that seemingly require large memory actually allow for a time-memory tradeoff~\cite{hellman1980cryptanalytic}, where the adversary can trade memory for time and do his job on fast hardware with low memory. In application
to password-hashing schemes, this means that the password crackers can still be implemented on a dedicated hardware even though at some additional cost.
Another problem with the existing schemes is their complexity. The same \textsf{scrypt} calls a stack of subprocedures, whose design rationale has not been fully motivated (e.g, \textsf{scrypt} calls SMix, which calls ROMix, which calls BlockMix, which calls Salsa20/8 etc.). It is hard to analyze and, moreover, hard to achieve confidence. Finally, it is not flexible in separating time and memory costs.
At the same time, the story of cryptographic competitions~\cite{robshaw2008new,sha3} has demonstrated that
the most secure designs come with simplicity, where every element is well motivated and a cryptanalyst has as few entry points as possible.
The Password Hashing Competition, which started in 2014, highlighted the following problems:
\begin{itemize}
\item Should the memory addressing (indexing functions) be input-independent or input-dependent, or hybrid? The first type of schemes, where the memory read location are known in advance, is immediately vulnerable to time-space tradeoff attacks,
since an adversary can precompute the missing block by the time it is needed~\cite{trade-att}. In turn, the input-dependent schemes are vulnerable to side-channel attacks~\cite{RistenpartTSS09}, as the timing information allows for much faster password search.
\item Is it better to fill more memory but suffer from time-space tradeoffs, or make more passes over the memory to be more robust? This question was quite difficult to answer due to absence of generic tradeoff tools, which would analyze the security against tradeoff attacks, and the absence of unified metric to measure adversary's costs.
\item How should the input-independent addresses be computed? Several seemingly secure options have been attacked~\cite{trade-att}.
\item How large a single memory block should be? Reading smaller random-placed blocks is slower (in cycles per byte) due to the spacial locality principle of the CPU cache. In turn, larger
blocks are difficult to process due to the limited number of long registers.
\item If the block is large, how to choose the internal compression function? Should it be cryptographically secure or more lightweight, providing only basic mixing of the inputs? Many candidates simply proposed an iterative construction and argued against cryptographically strong transformations.
\item How to exploit multiple cores of modern CPUs, when they are available? Parallelizing calls to the hashing function without any interaction is subject to simple tradeoff attacks.
\end{itemize}
\paragraph{Our solution} We offer a hashing scheme called \textsf{Argon2}.
\textsf{Argon2} summarizes the state of the art in the design of memory-hard functions. It is a streamlined and simple design. It aims at the highest memory filling rate and effective use of multiple computing units, while still
providing defense against tradeoff attacks. \textsf{Argon2} is optimized for the x86 architecture and exploits the cache and memory organization of the recent Intel and AMD processors. \textsf{Argon2} has two variants: \textsf{Argon2d} and \textsf{Argon2i}. \textsf{Argon2d} is faster and uses data-depending memory access, which makes it suitable for cryptocurrencies and applications with no threats from side-channel timing attacks. \textsf{Argon2i} uses data-independent memory access, which is preferred for password hashing and password-based key derivation. \textsf{Argon2i} is slower as it makes more passes over the memory to protect from tradeoff attacks.
We recommend \textsf{Argon2} for the applications that aim for high performance. Both versions of \textsf{Argon2} allow to fill 1 GB of RAM in a fraction of second, and smaller amounts even faster. It scales easily to the arbitrary number of parallel computing units. Its design is also optimized for clarity to ease analysis and implementation.
Our scheme provides more features and better tradeoff resilience than pre-PHC designs and equals in performance with the PHC finalists~\cite{broz15}.
\section{Definitions}
\subsection{Motivation}\label{sec:costs}
We aim to maximize the cost of password cracking on ASICs. There can be different approaches to measure this cost, but we turn to one of the most popular -- the time-area product~\cite{Thompson79,BernsteinL13}. We assume that the password $P$ is hashed with salt $S$ but without secret keys, and the hashes may leak to the adversaries together with salts:
$$
\begin{aligned}
\mathrm{Tag} &\leftarrow \mathcal{H}(P,S);\\
\mathrm{Cracker} &\leftarrow \{(\mathrm{Tag}_i, S_i)\}.
\end{aligned}
$$
In the case of the password hashing, we suppose that the defender allocates certain amount of time (e.g., 1 second) per password and a certain number of CPU cores (e.g., 4 cores). Then he hashes the password using the maximum amount $M$ of memory. This memory size translates to certain ASIC area $A$. The running ASIC time $T$ is determined by the length of the longest computational chain and by the ASIC memory latency.
Therefore, we maximize the value $AT$. The other usecases follow a similar procedure.
Suppose that an ASIC designer that wants to reduce the memory and thus the area wants to compute $\mathcal{H}$ using $\alpha M$ memory only for some $\alpha<1$. Using some tradeoff specific to $\mathcal{H}$, he has to spend $C(\alpha)$ times as much computation and his running time increases by at least the factor $D(\alpha)$. Therefore, the maximum possible gain $\mathcal{E}$ in the time-area product is
$$
\mathcal{E}_{max}= \max_{\alpha}\frac{1}{\alpha D(\alpha)}.
$$
The hash function is called \emph{memory-hard} if $D(\alpha) >1/\alpha$ as $\alpha\rightarrow 0$. Clearly, in this case the time-area product does not decrease. Moreover, the following aspects may further increase it:
\begin{itemize}
\item Computing cores needed to implement the $C(\alpha)$ penalty may occupy significant area.
\item If the tradeoff requires significant communication between the computing cores, the memory bandwidth limits may impose additional restrictions on the running time.
\end{itemize}
In the following text, we will not attempt to estimate time and area with large precision. However, an interested reader may use the following implementations as reference:
\begin{itemize}
\item The 50-nm DRAM implementation~\cite{giridhar2013dram} takes 550 mm${}^2$ per GByte;
\item The Blake2b implementation in the 65-nm process should take about 0.1 mm${}^2$ (using Blake-512 implementation in~\cite{gurkaynak2012sha3});
\item The maximum memory bandwidth achieved by modern GPUs is around 400 GB/sec.
\end{itemize}
\subsection{Model for memory-hard functions}
The memory-hard functions that we explore use the following mode of operation. The memory array $B[]$ is filled with the compression function $G$:
\begin{equation}\label{eq:class}
\begin{array}{rl}
B[0] &= H(P,S);\\
\text{for $j$ }&\text{from 1 to } t\\
&B[j] = G \bigl(B[\phi_1(j)] , B[\phi_2(j)] ,\cdots , B[\phi_k(j)]\bigr),
\end{array}
\end{equation}
where $\phi_i()$ are some \emph{indexing functions}.
We distinguish two types of indexing functions:
\begin{itemize}
\item Independent of the password and salt, but possibly dependent on other public parameters (thus called \emph{data-independent}). The addresses can be calculated by the memory-saving adversaries. We suppose that the dedicated hardware can handle parallel memory access, so that the cracker can prefetch the data from the memory. Moreover, if she implements a time-space tradeoff, then the missing blocks can be also precomputed without losing time. Let the single $G$ core occupy the area equivalent to the $\beta$ of the entire memory. Then if we use $\alpha M$ memory, then the gain in the time-area product is
$$
\mathcal{E}(\alpha) = \frac{1}{\alpha + C(\alpha)\beta}.
$$
\item Dependent on the password (\emph{data-dependent}), in our case: $\phi(j) = g(B[j-1])$. This choice prevents the adversary from prefetching and precomputing missing data. The adversary figures out what he has to recompute only at the time the element is needed. If an element is recomputed as a tree of $F$ calls of average depth $D$, then the total processing time is multiplied by $D$. The gain in the time-area product is
$$
\mathcal{E}(\alpha) = \frac{1}{(\alpha + C(\alpha)\beta)D(\alpha)}.
$$
\end{itemize}
The maximum bandwidth $Bw_{max}$ is a hypothetical upper bound on the memory bandwidth on the adversary's architecture. Suppose that for each call to $G$ an adversary has to load
$R(\alpha)$ blocks from the memory on average. Therefore, the adversary can keep the execution time the same as long as
$$
R(\alpha) Bw \leq Bw_{max},
$$
where $Bw$ is the bandwidth achieved by a full-space implementation. In the tradeoff attacks that we apply the following holds:
$$
R(\alpha) = C(\alpha).
$$
\section{Specification of Argon2}
There are two flavors of \textsf{Argon2}\ -- \textsf{Argon2d} and \textsf{Argon2i}. The former one uses data-dependent memory access to thwart tradeoff attacks. However, this makes it vulnerable for side-channel attacks, so \textsf{Argon2d} is recommended primarily for cryptocurrencies and backend servers. \textsf{Argon2i} uses data-independent memory access, which is recommended for password hashing and password-based key derivation.
\subsection{Inputs}
\textsf{Argon2}\ has two types of inputs: primary inputs and secondary inputs, or parameters. Primary inputs are message $P$ and nonce $S$, which are password and salt, respectively, for the password hashing. Primary inputs must always be given by the user such that
\begin{itemize}
\item Message $P$ may have any length from $0$ to $2^{32}-1$ bytes;
\item Nonce $S$ may have any length from $8$ to $2^{32}-1$ bytes (16 bytes is recommended for password hashing).
\end{itemize}
Secondary inputs have the following restrictions:
\begin{itemize}
\item Degree of parallelism $p$ determines how many independent (but synchronizing) computational chains can be run. It may take any integer value from 1 to $2^{24}-1$.
\item Tag length $\tau$ may be any integer number of bytes from 4 to $2^{32}-1$.
\item Memory size $m$ can be any integer number of kilobytes from $8p$ to $2^{32}-1$. The actual number of blocks is $m'$, which is $m$ rounded down to the nearest multiple of $4p$.
\item Number of iterations $t$ (used to tune the running time independently of the memory size) can be any integer number from 1 to $2^{32}-1$;
\item Version number $v$ is one byte $0x13$;
\item Secret value $K$ (serves as key if necessary, but we do not assume any key use by default) may have any length from $0$ to $2^{32}-1$ bytes.
\item Associated data $X$ may have any length from $0$ to $2^{32}-1$ bytes.
\item Type $y$ of \textsf{Argon2}: 0 for \textsf{Argon2d}, 1 for \textsf{Argon2i}, 2 for \textsf{Argon2id}.
\end{itemize}
\textsf{Argon2}\ uses internal compression function ${G}$ with two 1024-byte inputs and a 1024-byte output, and internal hash function ${H}$. Here ${H}$ is the Blake2b hash function, and ${G}$ is based on its internal permutation. The mode of operation of \textsf{Argon2} is quite simple when no parallelism is used: function ${G}$ is iterated $m$ times. At step $i$ a block with index $\phi(i)<i$ is taken from the memory (Figure~\ref{fig:generic}), where $\phi(i)$ is either determined by the previous block in \textsf{Argon2d}, or is a fixed value in \textsf{Argon2i}.
\begin{figure}[ht]
\ifpdf
\begin{center}
\includegraphics[scale=0.6]{pics/generic.pdf}
\caption{Argon2 mode of operation with no parallelism. }\label{fig:generic}
\end{center}
\fi
\end{figure}
\subsection{Operation}
\textsf{Argon2}\ follows the extract-then-expand concept. First, it extracts entropy from message and nonce by hashing it. All the other parameters are also added to the input. The variable length inputs $P,S,K,X$ are prepended with their lengths:
$$
%H_0 = \mathcal{H}(p,\tau,m,t,v,y,\langle P \rangle,P,\langle S \rangle,S,\langle K \rangle,K, \langle X \rangle,X).
H_0 = H(p,\tau,m,t,v,y,\langle P \rangle,P,\langle S \rangle,S,\langle K \rangle,K, \langle X \rangle,X).
$$
Here $H_0$ is 64-byte value, and the parameters $p,\tau,m,t,v,y,
\langle P \rangle,\langle S \rangle, \langle K \rangle,\langle X \rangle$ are treated as little-endian 32-bit integers.
\textsf{Argon2}\ then fills the memory with $m' = \lfloor \frac{m}{4p} \rfloor\cdot 4p$ 1024-byte blocks. For tunable parallelism with $p$ threads, the memory is organized in a matrix $B[i][j]$ of blocks
with $p$ rows (\emph{lanes}) and $q=m'/p$ columns. We denote the block produced in pass $t$ by $B^t[i][j],t>0$. Blocks are computed as follows:
\begin{align*}
B^1[i][0] &= H'(H_0||\underbrace{0}_{\text{4 bytes}}||\underbrace{i}_{\text{4 bytes}}),\quad 0 \leq i < p; \\
B^1[i][1] &= H'(H_0||\underbrace{1}_{\text{4 bytes}}||\underbrace{i}_{\text{4 bytes}}),\quad 0 \leq i < p;\\
B^1[i][j] &= G(B^1[i][j-1], B^1[i'][j']),\quad 0 \leq i < p,\; 2\leq j <q.
\end{align*}
where block index $[i'][j']$ is determined differently for \textsf{Argon2d/2ds} and \textsf{Argon2i}, $G$ is the compression function, and $H'$ is a variable-length hash function built upon $H$. Both $G$ and $H'$ will be fully defined in the further text.
If $t>1$, we repeat the procedure, but we XOR the new blocks to the old ones instead of overwriting them.
%The first two blocks of a lane are now computed in the same way:
\begin{align*}
B^t[i][0] &=G(B^{t-1}[i][q-1], B[i'][j']) \oplus B^{t-1}[i][0];\\
B^t[i][j] &= G(B^{t}[i][j-1], B[i'][j'])\oplus B^{t-1}[i][j].
\end{align*}
Here the block $B[i'][j']$ may be either $B^t[i'][j']$ for $j'<j$ or $B^{t-1}[i'][j']$ for $j>j'$.
After we have done $T$ iterations over the memory, we compute the final block $B_{\mathrm{final}}$ as the XOR of the last column:
$$
B_{\mathrm{final}} = B^T[0][q-1] \oplus B^T[1][q-1]\oplus \cdots\oplus B^T[p-1][q-1].
$$
Then we apply $H'$ to $B_{\mathrm{final}}$ to get the output tag.
$$
\text{Tag} \leftarrow H'(B_{\mathrm{final}}).
$$
\paragraph{Variable-length hash function.} Let $H_x$ be a hash function with $x$-byte output (in our case $H_x$ is Blake2b, which supports $1\leq x \leq 64$). We define $H'$ as follows. Let $V_i$ be a 64-byte block, and $A_i$ be its first 32 bytes,
and $\tau<2^{32}$ be the 32-bit tag length (viewed little-endian) in bytes.
Then we define
$$
\begin{array}{rl}
\text{if }\tau \leq 64&\\& H'(X) \overset{\text{def}}{=} H_{\tau}(\tau ||X).\\
\text{else}&\\
& r = \lceil\tau/32\rceil-2;\\
&V_1\leftarrow H_{64}(\tau||X);\\
&V_2 \leftarrow H_{64}(V_1);\\
&\cdots\\
&V_r \leftarrow H_{64}(V_{r-1}),\\
&V_{r+1} \leftarrow H_{\tau - 32r}(V_{r}).\\
&H'(X) \overset{\text{def}}{=} A_1||A_2||\ldots A_r||V_{r+1}.
\end{array}
$$
\begin{figure}[ht]
\ifpdf
\begin{center}
\includegraphics[scale=0.5]{pics/argon2-par.pdf}
\caption{Single-pass \textsf{Argon2} with $p$ lanes and 4 slices. }\label{fig:argon2}
\end{center}
\fi
\end{figure}
\subsection{Indexing}\label{sec:index}
To enable parallel block computation, we further partition the memory matrix into $S=4$ vertical \emph{slices}. The intersection of a slice and a lane is a \emph{segment} of length $q/S$. Segments of the same slice
are computed in parallel, and may not reference blocks from each other. All other blocks can be referenced, and now we explain the procedure in detail.
\paragraph{Getting two 32-bit values.} In Argon2d we select the first 32 bits of block $B[i][j-1]$ and denote this value by $J_1$. Then we take the next 32 bits of $B[i][j-1]$ and denote this value by $J_2$. In \textsf{Argon2i} we run $G^2$ --- the 2-round compression function $G$ --- in the counter mode, where the first input is all-zero block, and the second input is constructed as
$$
(\underbrace{r}_{\text{8 bytes}}||\underbrace{l}_{\text{8 bytes}}||\underbrace{s}_{\text{8 bytes}}||\underbrace{m'}_{\text{8 bytes}}||\underbrace{t}_{\text{8 bytes}}||\underbrace{x}_{\text{8 bytes}}||\underbrace{i}_{\text{8 bytes}}||\underbrace{0}_{\text{968 bytes}}),
$$ where
\begin{itemize}
\item $r$ is the pass number;
\item $l$ is the lane number;
\item $s$ is the slice number;
\item $m'$ is the total number of memory blocks;
\item $t$ is the total number of passes;
\item $x$ is the type of the Argon function (equals $1$ for \textsf{Argon2i});
\item $i$ is the counter starting in each segment from 1.
\end{itemize} All the numbers are put as little-endian. We increase the counter so that each application of $G^2$ gives 128 64-bit values $J_1||J_2$.
\paragraph{Mapping $J_1,J_2$ to the reference block index} The value $l = J_2 \bmod p$ determines the index of the lane from which the block will be taken. If we work with the first slice and the first pass ($r=s=0$), then $l$ is set to the current lane index.
Then we determine the set of indices $\mathcal{R}$ that can be referenced for given $[i][j]$ according to the following rules:
\begin{enumerate}
\item If $l$ is the current lane, then $\mathcal{R}$ includes all blocks computed in this lane, that are not overwritten yet, excluding $B[i][j-1]$.
\item If $l$ is not the current lane, then $\mathcal{R}$ includes all blocks in the last $S-1=3$ segments computed and finished in lane $l$. If $B[i][j]$ is the first block of a segment, then the very last block from $\mathcal{R}$ is excluded.
\end{enumerate}
We are going to take a block from $\mathcal{R}$ with a non-uniform distribution over $[0..|\mathcal{R}|)$:
$$
J_1\in [0..2^{32}) \rightarrow |\mathcal{R}|\left(1-\frac{(J_1)^2}{2^{64}}\right).
$$ To avoid floating-point computation, we use the following integer approximation:
\begin{align*}
x &= (J_1)^2/2^{32};\\
y &= (|\mathcal{R}|*x)/2^{32};\\
z & = |\mathcal{R}|-1-y.
\end{align*}
Then we enumerate the blocks in $\mathcal{R}$ in the order of construction and select $z$-th block from it as the reference block.
\subsection{Compression function \texorpdfstring{$G$}{G}}\label{sec:compr}
Compression function $G$ is built upon the Blake2b round function $\mathcal{P}$ (fully defined in Section~\ref{sec:blakeround}). $\mathcal{P}$ operates on the 128-byte input, which can be viewed as 8 16-byte registers (see details below):
$$
\mathcal{P}(A_0,A_1,\ldots, A_7) = (B_0,B_1,\ldots, B_7).
$$
Compression function ${G}(X,Y)$ operates on two 1024-byte blocks $X$ and $Y$. It first computes $R=X\oplus Y$. Then $R$ is viewed as a $8\times 8$-matrix of 16-byte registers $R_0, R_1,\ldots, R_{63}.$ Then
$\mathcal{P}$ is first applied rowwise, and then columnwise to get $Z$:
\begin{align*}
(Q_0,Q_1,\ldots,Q_7) &\leftarrow \mathcal{P}(R_0,R_1,\ldots,R_7);\\
(Q_8,Q_9,\ldots,Q_{15})&\leftarrow \mathcal{P}(R_8,R_9,\ldots,R_{15});\\
\ldots&\\
(Q_{56},Q_{57},\ldots,Q_{63})&\leftarrow \mathcal{P}(R_{56},R_{57},\ldots,R_{63});\\[10pt]
(Z_0,Z_8,Z_{16},\ldots,Z_{56})&\leftarrow \mathcal{P}(Q_0,Q_8,Q_{16},\ldots,Q_{56});\\
(Z_1,Z_9,Z_{17},\ldots,Z_{57})&\leftarrow \mathcal{P}(Q_1,Q_9,Q_{17},\ldots,Q_{57});\\
\ldots&\\
(Z_7,Z_{15},Z_{23},\ldots,Z_{63})&\leftarrow \mathcal{P}(Q_7,Q_{15},Q_{23},\ldots,Q_{63}).
\end{align*}
Finally, $G$ outputs $Z\oplus R$:
$$
G:\quad (X,Y)\; \rightarrow\; R = X\oplus Y\; \xrightarrow{\mathcal{P}}\;Q\;\xrightarrow{\mathcal{P}}\;Z\;
\rightarrow \;Z\oplus R.
$$
\begin{figure}[ht]
\ifpdf
\begin{center}
\includegraphics[scale=0.6]{pics/compression.pdf}
\caption{Argon2 compression function $G$. }\label{fig:compression}
\end{center}
\fi
\end{figure}
\section{Features}
\textsf{Argon2} is a multi-purpose family of hashing schemes, which is suitable for password hashing, key derivation, cryptocurrencies and other applications that require provably high memory use. \textsf{Argon2} is optimized for the x86 architecture, but it does not slow much on older processors. The key feature of \textsf{Argon2} is its performance and the ability to use multiple computational cores in a way that prohibits time-memory tradeoffs. Several features are not included into this version, but can be easily added later.
\subsection{Available features}
Now we provide an extensive list of features of Argon2.
\textbf{Performance}. \textsf{Argon2} fills memory very fast, thus increasing the area multiplier in the time-area product for ASIC-equipped adversaries. Data-independent version \textsf{Argon2i} securely fills the memory spending about 2 CPU cycles per byte, and \textsf{Argon2d} is three times as fast. This makes it suitable for applications that need memory-hardness but can not allow much CPU time, like cryptocurrency peer software.
\textbf{Tradeoff resilience}. Despite high performance, \textsf{Argon2} provides reasonable level of tradeoff resilience. Our tradeoff attacks previously applied to Catena and Lyra2 show the following. With default number of passes over memory (1 for \textsf{Argon2d}, 3 for \textsf{Argon2i}, an ASIC-equipped adversary can not decrease the time-area product if the memory is reduced by the factor of 4 or more. Much higher penalties apply if more passes over the memory are made.
\textbf{Scalability}. \textsf{Argon2} is scalable both in time and memory dimensions. Both parameters can be changed independently provided that a certain amount of time is always needed to fill the memory.
\textbf{Parallelism}. \textsf{Argon2} may use up to $2^{24}$ threads in parallel, although in our experiments 8 threads already exhaust the available bandwidth and computing power of the machine.
\textbf{GPU/FPGA/ASIC-unfriendly}. \textsf{Argon2} is heavily optimized for the x86 architecture, so that implementing it on dedicated cracking hardware should be neither cheaper nor faster. Even specialized ASICs would require significant area and would not allow reduction in the time-area product.
\textbf{Additional input support}. \textsf{Argon2} supports additional input, which is syntactically separated from the message and nonce, such as secret key, environment parameters, user data, etc..
\subsection{Possible future extensions}\label{sec:future2}
Argon2\ can be rather easily tuned to support other compression functions, hash functions and block sizes.
ROM can be easily integrated into \textsf{Argon2} by simply including it into the area where the blocks are referenced from.
\section{Security analysis}
All the attacks detailed below apply to one-lane version of Argon2, but can be carried to the multi-lane version with the same efficiency.
\subsection{Ranking tradeoff attack}\label{sec:tradeoff} To figure out the costs of the ASIC-equipped adversary, we first need to calculate the time-space tradeoffs for \textsf{Argon2}. To the best of our knowledge, the first generic
tradeoffs attacks were reported in~\cite{trade-att}, and they apply to both data-dependent and data-independent schemes. The idea of the ranking method~\cite{trade-att} is as follows. When we generate a memory block $B[l]$, we make a decision, to store it or not. If we do not store it, we calculate the access complexity of this block --- the number of calls to $F$ needed to compute the block, which is based on the access complexity of $B[l-1]$ and $B[\phi(l)]$. The detailed strategy is as follows:
\begin{enumerate}
\item Select an integer $q$ (for the sake of simplicity let $q$ divide $T$).
\item Store $B[kq]$ for all $k$;
\item Store all $r_i$ and all access complexities;
\item Store the $T/q$ highest access complexities. If $B[i]$ refers to a vertex from this top, we store $B[i]$.
\end{enumerate}
The memory reduction is a probabilistic function of $q$. We applied the algorithm to the indexing function of \textsf{Argon2} and obtained the results in Table~\ref{tab:generic3}. Each recomputation is a tree of certain depth, also given in the table.
We conclude that for data-dependent one-pass schemes the adversary is always able to reduce the memory by the factor of 3 and still keep the time-area product the same.
\begin{table}[hb]
\renewcommand{\arraystretch}{1.3}
$$
\begin{array}{|c||c|c|c|c|c|c|c|c|}
\hline
\text{$\alpha$ } &\frac{1}{2} &\frac{1}{3} &\frac{1}{4} &\frac{1}{5} &\frac{1}{6} &\frac{1}{7} \\
\hline
\text{$C(\alpha)$} &1.5& 4& 20.2& 344& 4660 & 2^{18}\\
\text{$D(\alpha)$} & 1.5 & 2.8 & 5.5 & 10.3 & 17 &27 \\
\hline
\end{array}
$$
\caption{Time and computation penalties for the ranking tradeoff attack for the Argon2 indexing function.}\label{tab:generic3}
\end{table}
\subsection{Memory optimization attack}
As reported in~\cite{Corrigan-GibbsB16}, it is possible to optimize the memory use in the earlier version 1.2.1 of Argon2, concretely for Argon2i. The memory blocks produced in the version 1.2.1 at second and later passes replaced, not overwrote the blocks at earlier passes. Therefore, for each block $B[i]$ there is a time gap (let us call it a \emph{no-use gap}) between the moment the block is used for the last time (as a reference or as a fresh new block) and the moment it is overwritten. We formalize this issue as follows. Let us denote by $\phi^r(i)$ the reference block index for block $B^r[i]$.
\begin{itemize}
\item For $t$-pass Argon2i the block $B^r[i], r<t$ is not used between step
$l_i^r = \max\left(i,\max_{\phi(j^r) = i} j\right)$ and step $i$ of pass $r+1$, where it is overwritten.
\item For $t$-pass Argon2i the block $B^t[i]$ is not used between step
$l_i^t = \max\left(i,\max_{\phi(j^r) = i} j\right)$ and step $m'$ of pass $t$, where it is discarded.
\end{itemize}
Since
addresses $l_i$ can be precomputed, an attacker can figure out for each block $B^r[i]$ when it can be discarded.
A separate data structure will be needed though to keep the address of newly produced blocks as they land up at pseudo-random locations at the memory.
This saving strategy uses the fraction
$$
L^t = \sum_i\left(1 - \frac{l_i^t}{m'}\right)
$$
of memory for the last pass, and
$$
L^r = \sum_i\left(\frac{m'+i-l_i^r}{m'}\right)
$$
for the previous passes.
Our experiments show that in 1-pass Argon2i $L^1\approx 0.15$, i.e. on average 1/7-th of memory is used. Since in the straightforward application on average 1/2 of memory is used, the advantage in the time-area product is about 3.5.
For $t>1$ this strategy uses $0.25$ of memory on average, so the time-area product advantage is close to 4. If we use the peak memory amount in the time-area calculations, then the advantage would be 5 and 2.7, respectively.
The version 1.3 of Argon2 replaces overwriting operation with the XOR. This gives minimal overhead on the performance: for memory requirements of 8 MB and higher the performance difference is between 5\% and 15\% depending on the operating system and hardware. For instance, the highest speed of 3-pass Argon2d v.1.2.1 on 1.8 GHz CPU with Ubuntu is 1.61 cycles per byte, whereas for v.1.3 it is 1.7 cpb (both measured for 2 GB of RAM, 4 threads).
In the version 1.3 this saving strategy applies to the one-pass Argon2i only, where it brings the same time-area product advantage. The multi-pass versions are safe as all the blocks have to be kept in memory till the overwrite.
\subsection{Attack on iterative compression function}\label{sec:att-iter}
Let us consider the following structure of the compression function $F(X,Y)$, where $X$ and $Y$ are input blocks:
\begin{itemize}
\item The input blocks of size $t$ are divided into shorter subblocks of length $t'$ (for instance, 128 bits) $X_0$, $X_1$, $X_2,\ldots$ and $Y_0$, $Y_1$, $Y_2,\ldots$.
\item The output block $Z$ is computed subblockwise:
\begin{align*}
Z_0 = G(X_0,Y_0);\\
Z_i = G(X_i,Y_i,Z_{i-1}),\;i>0.
\end{align*}
\end{itemize}
This scheme resembles the duplex authenticated encryption mode, which is secure under certain assumptions on $G$. However, it is totally insecure against tradeoff adversaries, as shown below.
Suppose that an adversary computes $Z = F(X,Y)$ but $Y$ is not stored. Suppose that $Y$ is a tree function of stored elements of depth $D$. The adversary starts with computing $Z_0$, which requires only $Y_0$. In turn, $Y_0 = G(X_0', Y_0')$ for some $X',Y'$.
Therefore, the adversary computes the tree of the same depth $D$, but with the function $G$ instead of $F$. $Z_1$ is then a tree function of depth $D+1$, $Z_2$ of depth $D+2$, etc. In total, the recomputation takes $(D+s)L_G$ time, where $s$ is the number of subblocks and $L_G$ is the latency of $G$. This should be compared to the full-space implementation, which takes time
$sL_G$. Therefore, if the memory is reduced by the factor $q$, then the time-area product is changed as
$$
AT_{new} = \frac{D(q)+s}{sq}AT.
$$
Therefore, if
\begin{equation}\label{att:iter}
D(q) \leq s(q-1),
\end{equation}
the adversary wins.
One may think of using the $Z_{m-1}[l-1]$ as input to computing $Z_0[l]$. Clearly, this changes little in adversary's strategy, who could simply store all $Z_{m-1}$, which is feasible for large $m$. In concrete proposals, $s$ can be 64, 128, 256 and even larger.
We conclude that $F$ with an iterative structure is insecure. We note that this attack applies also to other PHC candidates with iterative compression function.
\subsection{Security of Argon2 to generic attacks}\label{sec:generic}
Now we consider preimage and collision resistance of both versions of \textsf{Argon2}. Variable-length inputs are prepended with their lengths, which shall ensure
the absence of equal input strings. Inputs are processed by a cryptographic hash function, so no collisions should occur at this stage.
\paragraph{Internal collision resistance.} The compression function $G$ is not claimed to be collision resistant, so it may happen that distinct inputs produce identical outputs. Recall
that $G$ works as follows:
$$
G(X,Y) = P(Z)\oplus (Z), \quad Z = X\oplus Y.
$$
where $P$ is a permutation based on the 2-round Blake2b permutation. Let us prove that all $Z$ are different under certain assumptions.
\begin{theorem}
Let $\Pi$ be \textsf{Argon2d} or \textsf{Argon2i} with $d$ lanes, $s$ slices, and $t$ passes over memory. Assume that
\begin{itemize}
\item $P(Z)\oplus Z$ is collision-resistant, i.e. it is hard to find $a,b$ such that $P(a)\oplus a = P(b)\oplus b$.
\item $P(Z)\oplus Z$ is 4-generalized-birthday-resistant, i.e. it is hard to find distinct $a,b,c,d$ such that $P(a)\oplus P(b)\oplus P(c)\oplus P(d) = a\oplus b\oplus c \oplus d$.
\end{itemize}Then all the blocks $B[i]$ generated in those $t$ passes are different.
\end{theorem}
\begin{proof}
By specification, the value of $Z$ is different for the first two blocks of each segment in the first slice in the first pass. Consider the other blocks.
Let us enumerate the blocks according to the moment they are computed. Within a slice, where segments can be computed in parallel, we enumerate lane 0 fully first, then lane 1, etc.. Slices are then computed and enumerated sequentially.
Suppose the proposition is wrong, and let $(B[x],B[y])$ be a block collision such that $x<y$ and $y$ is the smallest among all such collisions. As $F(Z)\oplus Z$ is collision resistant,
the collision occurs in $Z$, i.e.
$$
Z_x = Z_y.
$$
Let $r_x, r_y$ be reference block indices for $B[x]$ and $B[y]$, respectively, and let $p_x, p_y$ be previous block indices for $B[x],B[y].$ Then we get
$$
B[r_x] \oplus B[p_x] = B[r_y] \oplus B[p_y].
$$
As we assume 4-generalized-birthday-resistance, some arguments are equal. Consider three cases:
\begin{itemize}
\item $r_x=p_x$. This is forbidden by the rule 3 in Section~\ref{sec:index}.
\item $r_x=r_y$. We get $B[p_x] = B[p_y]$. As $p_x,p_y <y$, and $y$ is the smallest yielding such a collision, we get $p_x = p_y$. However, by construction $p_x \neq p_y$ for $x\neq y$.
\item $r_x = p_y$. Then we get $B[r_y] = B[p_x]$. As $r_y <y$ and $p_x<x<y$, we obtain $r_y = p_x$. Since $p_y=r_x<x<y$, we get that $x$ and $y$ are in the same slice, we have two options:
\begin{itemize}
\item $p_y$ is the last block of a segment. Then $y$ is the first block of a segment in the next slice. Since $r_x$ is the last block of a segment, and $x<y$, $x$ must be in the same slice as $y$, and $x$ can not be the first block in a segment by the rule 4 in Section~\ref{sec:index}. Therefore, $r_y=p_x = x-1$. However, this is impossible, as $r_y$ can not belong to the same slice as $y$.
\item $p_y$ is not the last block of a segment. Then $r_x = p_y = y-1$, which implies that $r_x \geq x$. The latter is forbidden.
\end{itemize}
\end{itemize}
Thus we get a contradiction in all cases. This ends the proof.
\end{proof}
The compression function $G$ is not claimed to be collision resistant nor preimage-resistant. However, as the attacker has no control over its input, the collisions are highly unlikely. We only take care that the starting blocks are not identical by producing the first two blocks with a counter and forbidding to reference from the memory the last block as (pseudo)random.
\textsf{Argon2d} does not overwrite the memory, hence it is vulnerable to garbage-collector attacks and similar ones, and is not recommended to use in the setting where these threats are possible. \textsf{Argon2i} with 3 passes overwrites the memory twice, thus thwarting the memory-leak attacks. Even if the entire working memory of \textsf{Argon2i} is leaked after the hash is computed, the adversary would have to compute two passes over the memory to try the password.
\subsection{Security of Argon2 to ranking tradeoff attacks}
Time and computational penalties for 1-pass \textsf{Argon2d} are given in Table~\ref{tab:generic3}. It suggests that the adversary can reduce memory by the factor of 3 at most
while keeping the time-area product the same.
\textsf{Argon2i} is more vulnerable to tradeoff attacks due to its data-independent addressing scheme. We applied the ranking algorithm to 3-pass \textsf{Argon2i} to calculate time and computational penalties. We found out that the memory reduction by the factor of 3 already gives the computational penalty of around $2^{14}$. The $2^{14}$ Blake2b cores would take more area than 1 GB of RAM (Section~\ref{sec:costs}), thus prohibiting the adversary to further reduce the time-area product. We conclude that the time-area product cost for \textsf{Argon2i} can be reduced by 3 at best.
\subsection{Security of Argon2i to generic tradeoff attacks on random graphs}
The recent paper by Alwen and Blocki~\cite{AB16} reports an improved attack on Argon2i (all versions) as an instance of
hash functions based on random graphs.
For $t$-pass Argon2i, Alwen and Blocki explicitly construct a set of $O(T^{3/4})$ nodes so that removing these nodes from the computation graph yields the so called sandwich graph with $O(T^{1/4})$ layers and $O(T^{1/2})$ depth and size. The computation proceeds as follows:
\begin{itemize}
\item Mark certain $v = O(T^{3/4})$ blocks as to be stored.
\item For every segment of length $T^{3/4}$:
\begin{itemize}
\item Compute the reference blocks of the segment blocks in parallel.
\item Compute the segment blocks consecutively, store blocks that needs storing.
\end{itemize}
\end{itemize}
Using $O(T^{1/2})$ cores, the segment computation takes time $O(T^{3/4})$ and the total time is $O(T)$. The cores are used only for $O(T^{1/2})$ time, so it is possible to amortize costs computing $O(T^{1/4})$ instances using these cores in the round-robin fashion. The memory complexity of each step is about to $T\log T$.
A precise formula for the time-area complexity using this tradeoff strategy is given in Corollary\footnote{the authors denote the total number of blocks by $n$ and the number of passes by $k$.} 5.6 of~\cite{AB16}:
$$
AT_{new}= 2 T^{7/4}\left(5+ t + \frac{\ln T}{8} \right),
$$
Since the memory consumption in the standard implementation is $M=T/t$, the standard AT value is $T^2/t$ and the time-area advantage of the Alwen-Blocki attack is
$$
\mathcal{E} = \frac{AT}{AT_{new}} = \frac{T^{1/4}}{2t(5+(\ln t)/2+\frac{\ln T}{8})}\leq
\frac{M^{1/4}}{2t^{3/4}(5+0.625\ln t + 0.125 \ln M)}.
$$
For $t\geq 3$ we get that $\mathcal{E} \leq M^{1/4}/36$. Therefore, for $M$ up to $2^{20}$ (1 GB) the advantage is smaller than 1 (i.e. the attack is not beneficial to the adversary at all), and for $M$ up to $2^{24}$ (16 GB) it is smaller than 2. Therefore, this approach is not better than the ranking attack. However, it is a subject of active research and we'll update this documents if improvements appear.
\subsection{Summary of tradeoff attacks}
The best attack on the 1- and 2-pass Argon2i (v.1.3) is the low-storage attack from~\cite{Corrigan-GibbsB16}, which reduces the time-area product (using the peak memory value) by the factor of 5.
The best attack for $t$-pass ($t>2$) Argon2i is the ranking tradeoff attack, which reduces the time-area product by the factor of 3.
The best attack on the $t$-pass Argon2d is the ranking tradeoff attack, which reduces the time-area product by the factor 1.33.
\section{Design rationale}
\textsf{Argon2}\ was designed with the following primary goal: to maximize the cost of exhaustive search on non-x86 architectures, so that the switch even to dedicated ASICs would not give significant advantage over doing the exhaustive search on defender's machine.
\subsection{Indexing function}
The basic scheme~\eqref{eq:class} was extended to implement:
\begin{itemize}
\item Tunable parallelism;
\item Several passes over memory.
\end{itemize}
For the data-dependent addressing we set $\phi(l) = g(B[l])$, where $g$ simply truncates the block and takes the result modulo $l-1$. We considered
taking the address
not from the block $B[l-1]$ but from the block $B[l-2]$, which should have allowed to prefetch the block earlier. However, not only the gain in our implementations is limited, but also this benefit can be exploited by the adversary. Indeed, the efficient depth $D(q)$ is
now reduced to $D(q)-1$, since the adversary has one extra timeslot. Table~\ref{tab:generic3} implies that then the adversary would be able to reduce the memory by the factor of 5 without increasing the time-area product (which is a 25\% increase in the reduction factor compared to the standard approach).
For the data-independent addressing we use a simple PRNG, in particular the compression function $G$ in the counter mode.
Due to its long output, one call (or two consecutive calls) would produce hundreds of addresses,
thus minimizing the overhead. This approach does not give provable tradeoff bounds, but instead allows
the analysis with the tradeoff algorithms suited for data-dependent addressing.
\paragraph{Motivation for our indexing functions}
Initially, we considered uniform selection of referenced blocks, but then we considered a more generic case:
$$
\phi \leftarrow \lceil(2^{64}-(J_1)^\gamma)\cdot |\mathcal{R}_l|/2^{64} \rceil
$$
We tried to choose the $\gamma$ which would maximize the adversary's costs if he applies the tradeoff based on the ranking method. We also attempted to make the reference block distribution close to uniform, so that each memory block is referenced similar number of times.
For each $1\leq \gamma\leq 5$ with step $0.1$ we applied the ranking method with sliding window and selected the best available tradeoffs. We obtained a set of time penalties $\{D_{\gamma}(\alpha)\}$ and computational penalties $\{C_{\gamma}(\alpha)\}$ for $0.01<\alpha<1$. We also calculated the reference block distribution for all possible $\gamma$. We considered two possible metrics:
\begin{enumerate}
\item Minimum time-area product $$AT_{\gamma} = \min_{\alpha}\{\alpha\cdot D_{\gamma}(\alpha)\}.
$$
\item Maximum memory reduction which reduces the time-area product compared to the original:
$$
\alpha_{\gamma} = \min_{\alpha} \{\alpha\,|\,D_{\gamma}(\alpha)<\alpha\}.
$$
\item The goodness-of-fit value of the reference block distribution w.r.t. the uniform distribution with $n$ bins:
$$
\chi^2 = \sum_i \frac{(p_i-\frac{1}{n})^2}{\frac{1}{n}},
$$
where $p_i$ is the average probability of the block from $i$-th bin to be referenced. For example, if $p_3 = 0.2, \,n=10$ and there are 1000 blocks, then blocks from $201$ to $300$ are referenced $1000\cdot 0.2 =200$ times throughout the computation.
\end{enumerate}
We got the following results for $n=10$:
$$
\begin{array}{|c|c|c|c|}
\hline
\gamma & AT_{\gamma}&\alpha_{\gamma} &\chi^2\\
\hline
1& 0.78 & 3.95&0.89\\
\hline 2 & 0.72 & 3.2& 0.35\\
\hline 3 & 0.67 & 3.48&0.2\\
\hline 4 & 0.63 & 3.9&0.13\\
\hline 5 & 0.59 & 4.38&0.09\\
\hline
\end{array}
$$
We conclude that the time-area product achievable by the attacker slowly decreases as $\gamma$ grows. However, the difference between $\gamma=1$ and $\gamma=5$ is only the factor of $1.3$. We also see that the time-area product can be kept below the original up to $q=3.2$ for $\gamma=2$, whereas for $\gamma=4$ and $\gamma=1$ such $q$ is close to $4$.
To avoid floating-point computations, we restrict to integer $\gamma$. Thus the optimal values are $\gamma=2$ and $\gamma=3$, where the former is slightly better in the first two metrics.
However, if we consider the reference block uniformity, the situation favors larger $\gamma$ considerably. We see that the $\chi^2$ value is decreased by the factor of $2.5$ when going from $\gamma=1$ to $\gamma=2$, and by the factor of $1.8$ further to $\gamma=3$. In concrete probabilities (see also Figure~\ref{fig:histo}),
the first 20\% of blocks accumulate 40\% of all reference hits for $\gamma=2$ and 32\% for $\gamma=3$ (23.8\% vs 19.3\% hit for the first 10\% of blocks).
To summarize, $\gamma=2$ and $\gamma=3$ both are better against one specific attacker and slightly worse against the other. We take $\gamma=2$ as the value that minimizes the AT gain, as we consider this metric more important.
\begin{table}[ht]
\renewcommand{\arraystretch}{1.3}
$$
\begin{array}{|c||c|c|c|c|c|}
\hline
\text{Memory fraction ($1/q$) } &\frac{1}{2} &\frac{1}{3} &\frac{1}{4}&\frac{1}{5} &\frac{1}{6}\\
\hline
\gamma=1 & 1.6 & 2.9 & 7.3 & 16.4 & 59\\
\gamma=2 & 1.5 & 4 & 20.2 & 344 & 4700\\
\gamma=3 &1.4& 4.3& 28.1 &1040 & 2^{17}\\
\hline
\end{array}
$$
\caption{Computational penalties for the ranking tradeoff attack with a sliding window, 1 pass.}\label{tab:comp-alpha}
\end{table}
\begin{table}[ht]
\renewcommand{\arraystretch}{1.3}
$$
\begin{array}{|c||c|c|c|c|c|}
\hline
\text{Memory fraction ($1/q$) } &\frac{1}{2} &\frac{1}{3} &\frac{1}{4}&\frac{1}{5} &\frac{1}{6}\\
\hline
\gamma=1 & 1.6 & 2.5 & 4 & 5.8 & 8.7\\
\gamma=2 & 1.5 & 2.6 & 5.4 & 10.7 & 17\\
\gamma=3 &1.3& 2.5& 5.3 &10.1 & 18\\
\hline
\end{array}
$$
\caption{Depth penalties for the ranking tradeoff attack with a sliding window, 1 pass.}\label{tab:depth-alpha}
\end{table}
\begin{figure}[hb]
\begin{center}
\includegraphics[width=5cm]{pics/power-distribution.jpg}
\end{center}
\caption{Access frequency for different memory segments (10\%-buckets) and different exponents (from $\gamma=1$ to $\gamma=5$) in the indexing functions.}\label{fig:histo}
\end{figure}
\subsection{Implementing parallelism}\label{sec:parall}
As modern CPUs have several cores possibly available for hashing, it is tempting to use these cores to increase the bandwidth, the amount of filled memory, and the CPU load.
The cores of the recent Intel CPU share the L3 cache and the entire memory, which both have large latencies (100 cycles and more). Therefore, the inter-processor communication should be minimal to avoid delays.
The simplest way to use $p$ parallel cores is to compute and XOR $p$ independent calls to $H$:
$$
H'(P,S) = H(P,S, 0)\oplus H(P,S,1)\oplus \cdots \oplus H(P,S,p-1).
$$
If a single call uses $m$ memory units, then $p$ calls use $pm$ units. However, this method admits a trivial tradeoff: an adversary just makes $p$ sequential calls to $H$ using only $m$ memory in total, which keeps the time-area product constant.
We suggest the following solution for $p$ cores: the entire memory is split into $p$ lanes of $l$ equal slices each, which can be viewed as elements of a $(p\times l)$-matrix $Q[i][j]$. Consider the class of
schemes given by Equation~\eqref{eq:class}. We modify it as follows:
\begin{itemize}
\item $p$ invocations to $H$ run in parallel on the first column $Q[*][0]$ of the memory matrix. Their indexing functions refer to their own slices only;
\item For each column $j>0$, $l$ invocations to $H$ continue to run in parallel, but the indexing functions now may refer not only to their own slice, but also to all $jp$ slices of previous columns $Q[*][0],Q[*][1],\ldots,Q[*][j-1]$.
\item The last blocks produced in each slice of the last column are XORed.
\end{itemize}
This idea is easily implemented in software with $p$ threads and $l$ joining points. It is easy to see that the adversary can use less memory when computing the last column, for instance
by computing the slices sequentially and storing only the slice which is currently computed. Then his time is multiplied by $(1+\frac{p-1}{l})$, whereas the memory use is multiplied
by $(1-\frac{p-1}{pl})$, so the time-area product is modified as
$$
AT_{new} = AT \left(1-\frac{p-1}{pl}\right)\left(1+\frac{p-1}{l}\right).
$$
For $2 \leq p,l \leq 10$ this value is always between $1.05$ and $3$. We have selected $l=4$ as this value gives low synchronisation overhead while imposing time-area penalties on the adversary who reduces the memory even by the factor 3/4. We note that values $l=8$ or $l=16$ could be chosen.
If the compression function is collision-resistant, then one may easily prove that block collisions are highly unlikely. However, we employ a weaker compression function, for which the following holds:
$$
G(X,Y) = F(X\oplus Y),
$$
which is invariant to swap of inputs and is not collision-free. We take special care to ensure that the mode of operation does not allow such collisions by introducing additional rule:
\begin{itemize}
\item First block of a segment can not refer to the last block of any segment in the previous slice.
\end{itemize}
We prove that block collisions are unlikely under reasonable conditions on $F$ in Section~\ref{sec:generic}.
\subsection{Compression function design}\label{sec:compression}
\subsubsection{Overview}
In contrast to attacks on regular hash functions, the adversary does not control inputs to the compression function $G$ in our scheme. Intuitively, this should relax the cryptographic properties required from the compression function and allow for a faster primitive. To avoid being the bottleneck, the compression function ideally should be on par with the performance of memcpy() or similar function, which may run at 0.1 cycle per byte or even faster. This much faster than ordinary stream ciphers or hash functions, but we might not need strong properties of those primitives.
However, we first have to determine the optimal block size. When we request a block from a random location in the memory, we most likely get a cache miss. The first bytes would arrive at the CPU from RAM within at best 10 ns, which accounts for 30 cycles. In practice, the latency of a single load instruction may reach 100 cycles and more. However, this number can be amortized if we request a large block of sequentially stored bytes. When the first bytes are requested, the CPU stores the next ones in the L1 cache, automatically or using the \texttt{prefetch} instruction. The data from the L1 cache can be loaded as fast as 64 bytes per cycle on the Haswell architecture, though we did not manage to reach this speed in our application.
Therefore, the larger the block is, the higher the throughput is. We have made a series of experiments with a non-cryptographic compression function, which does little beyond simple XOR of its inputs, and achieved the performance of around 0.7 cycles per byte per core with block sizes of 1024 bits and larger.
\subsubsection{Design criteria}
It was demonstrated that a compression function with a large block size may be vulnerable to tradeoff attacks if it has a simple iterative structure, like modes of operation for a blockcipher~\cite{trade-att} (some details in Section~\ref{sec:att-iter}).
Thus we formulate the following design criteria:
\begin{itemize}
\item \emph{The compression function must require about $t$ bits of storage (excluding inputs) to compute any output bit.}
\item \emph{Each output byte of $F$ must be a nonlinear function of all input bytes, so that the function has differential probability below certain level, for example $\frac{1}{4}$}.
\end{itemize}
These criteria ensure that the attacker is unable to compute an output bit using only a few input bits or a few stored bits. Moreover, the output bits should not be (almost) linear functions of input bits, as otherwise the function tree would collapse.
We have not found any generic design strategy for such large-block compression functions. It is difficult to maintain diffusion on large memory blocks due to the lack of CPU instructions that interleave many registers at once. A naive approach would be to apply a linear transformation with certain branch number. However, even if we operate on 16-byte registers, a 1024-byte block would consist of 64 elements. A $64\times 64$-matrix would require 32 XORs per register to implement, which gives a penalty about 2 cycles per byte.
Instead, we propose to build the compression function on the top of a transformation $P$ that already mixes several registers. We apply $P$ in parallel (having a P-box), then shuffle the output registers and apply it again. If $P$ handles $p$ registers, then the compression function may transform a block of $p^2$ registers with 2 rounds of P-boxes. We do not have to manually shuffle the data, we just change the inputs to P-boxes. As an example, an implementation of the Blake2b~\cite{AumassonNWW13} permutation processes 8 128-bit registers, so with 2 rounds of Blake2b we can design
a compression function that mixes the 8192-bit block. We stress that this approach is not possible with dedicated AES instructions. Even though they are very fast, they apply only to the 128-bit block, and we still have to diffuse its content across other blocks.
We replace the original Blake2b round function
with its modification BlaMka~\cite{cryptoeprint:2015:136}, where the modular additions in $G$ are combined with 32-bit multiplications. Our motivation was to increase the circuit depth (and thus the running time) of a potential ASIC implementation while having roughly the same running time on CPU thanks to parallelism and pipelining. Extra multiplications in the scheme serve well, as the best addition-based circuits for multiplication have latency about 4-5 times the addition latency for 32-bit multiplication (or roughly $\log_n$ for $n$-bit multiplication).
As a result, any output 64-bit word of $\mathcal{P}$ is implemented by a chain of additions, multiplications, XORs, and rotations. The shortest possible chain for the 1 KB-block (e.g, from $v_0$ to $v_0$) consists of 12 MULs, 12 XORs, and 12 rotations.
\subsection{User-controlled parameters}
We have made a number of design choices, which we consider optimal for a wide range of applications. Some parameters can be altered, some should be kept as is. We give a user full control over:
\begin{itemize}
\item Amount $M$ of memory filled by algorithm. This value, evidently, depends on the application and the environment. There is no "insecure" value for this parameter, though clearly the more memory the better.
\item Number $T$ of passes over the memory. The running time depends linearly on this parameter. We expect that the user chooses this number according to the time constraints on the application. Again, there is no "insecure value" for $T$.
\item Degree $d$ of parallelism. This number determines the number of threads used by an optimized implementation of \textsf{Argon2}. We expect that the user is restricted by a number of CPU cores (or half-cores) that can be devoted to the hash function, and chooses $d$ accordingly (double the number of cores).
\item Length of password/message, salt/nonce, and tag (except for some low, insecure values for salt and tag lengths).
\end{itemize}
We allow to choose another compression function $G$, hash function $H$, block size $b$, and number of slices $l$. However, we do not provide this flexibility in a reference implementation as we guess that
the vast majority of the users would prefer as few parameters as possible.
\section{Performance}
\subsection{x86 architecture}
To optimize the data load and store from/to memory, the memory that will be processed has to be alligned on 16-byte boundary when loaded/stored into/from 128-bit registers and on 32-byte boundary when loaded/stored into/from 256-bit registers. If the memory is not aligned on the specified boundaries, then each memory operation may take one extra CPU cycle, which may cause consistent penalties for many memory accesses.
The results presented are obtained using the \texttt{gcc 4.8.2} compiler with the following options: \texttt{-m64 -mavx -std=c++11 -pthread -O3}.
The cycle count value was measured using the \texttt{\_\_rdtscp} Intel intrinsics C function which inlines the \texttt{RDTSCP} assembly instruction that returns the 64-bit Time Stamp Counter (TSC) value. The instruction waits for prevoius instruction to finish and then is executed, but meanwhile the next instructions may begin before the value is read. Although this shortcoming, we used this method because it is the most realiable handy method to measure the execution time and also it is widely used in other cryptographic operations benchmarking.
\begin{table}
\begin{center}
\begin{tabular}{|cc||cc|cc|}
\hline
& & \multicolumn{2}{c|}{\textsf{Argon2d} (1 pass)} & \multicolumn{2}{|c|}{\textsf{Argon2i} (3 passes)} \\
\cline{3-6}
Processor & Threads & Cycles/Byte & Bandwidth & Cycles/Byte & Bandwidth \\
& & & (GB/s) & & (GB/s)\\
\hline
i7-4500U & 1 &1.3 & 2.5 & 4.7 & 2.6 \\
\hline
i7-4500U & 2 &0.9& 3.8&2.8 & 4.5\\
\hline
i7-4500U & 4 &0.6 & 5.4 & 2 & 5.4 \\
\hline
i7-4500U & 8 & 0.6 & 5.4 & 1.9 & 5.8\\
\hline
\end{tabular}
\end{center}
\caption{Speed and memory bandwidth of Argon2(d/i) measured on 1 GB memory filled. Core i7-4500U --- Intel Haswell 1.8 GHz, 4 cores}
\label{table:cycle_per_byte_results}
\end{table}
\section{Applications}
\textsf{Argon2d} is optimized for settings where the adversary does not get regular access to system memory or CPU, i.e. he can not run side-channel attacks based on the timing information, nor he
can recover the password much faster using garbage collection~\cite{cryptoeprint:2014:881}. These settings are more typical for backend servers and cryptocurrency minings. For practice we suggest the following settings:
\begin{itemize}
\item Cryptocurrency mining, that takes 0.1 seconds on a 2 Ghz CPU using 1 core --- \textsf{Argon2d} with 2 lanes and 250 MB of RAM;
\item Backend server authentication, that takes 0.5 seconds on a 2 GHz CPU using 4 cores --- \textsf{Argon2d} with 8 lanes and 4 GB of RAM.
\end{itemize}
\textsf{Argon2i} is optimized for more dangerous settings, where the adversary possibly can access the same machine, use its CPU or mount cold-boot attacks. We use three passes to get rid entirely of the password in the memory. We suggest the following settings:
\begin{itemize}
\item Key derivation for hard-drive encryption, that takes 3 seconds on a 2 GHz CPU using 2 cores --- \textsf{Argon2i} with 4 lanes and 6 GB of RAM;
\item Frontend server authentication, that takes 0.5 seconds on a 2 GHz CPU using 2 cores --- \textsf{Argon2i} with 4 lanes and 1 GB of RAM.
\end{itemize}
\section{Recommended parameters}
We recommend the following procedure to select the type and the parameters for practical use of \textsf{Argon2}:
\begin{enumerate}
\item Select the type $y$. If you do not know the difference between them or you consider side-channel attacks as viable threat, choose \textsf{Argon2i}. Otherwise any choice is fine, including optional types.
\item Figure out the maximum number $h$ of threads that can be initiated by each call to \textsf{Argon2}.
\item Figure out the maximum amount $m$ of memory that each call can afford.
\item Figure out the maximum amount $x$ of time (in seconds) that each call can afford.
\item Select the salt length. 128 bits is sufficient for all applications, but can be reduced to 64 bits in the case of space constraints.
\item Select the tag length. 128 bits is sufficient for most applications, including key derivation. If longer keys are needed, select longer tags.
\item If side-channel attacks is a viable threat, enable the memory wiping option in the library call.
\item Run the scheme of type $y$, memory $m$ and $h$ lanes and threads, using different number of passes $t$. Figure out the maximum $t$ such that the running time does not exceed $x$. If it exceeds $x$ even for $t=1$, reduce $m$ accordingly.
\item Hash all the passwords with the just determined values $m$, $h$, and $t$.
\end{enumerate}
\section{Conclusion}
We presented the memory-hard function \textsf{Argon2}, which maximizes the ASIC implementation costs for given CPU computing time. We aimed to make the design clear and compact, so that any feature and operation has certain rationale. The clarity and brevity of the Argon2 design has been confirmed by its eventual selection as the PHC winner.
Further development of tradeoff attacks with dedication to \textsf{Argon2} is the subject of future work. It also remains to be seen how \textsf{Argon2} withstands GPU cracking with low memory requirements.
\bibliographystyle{IEEEtranS}
\bibliography{tradeoff}
\appendix
\section{Permutation \texorpdfstring{$\mathcal{P}$}{P}}\label{sec:blakeround}
Permutation $\mathcal{P}$ is based on the round function of Blake2b and works as follows. Its 8 16-byte inputs $S_0, S_1,\ldots, S_7$ are viewed as a $4\times 4$-matrix of 64-bit words, where $S_i = (v_{2i+1}||v_{2i})$:
$$
\begin{pmatrix}
v_0 & v_1 & v_2 & v_3\\
v_4 & v_5 & v_6 & v_7\\
v_8 & v_9 & v_{10} & v_{11}\\
v_{12} & v_{13} & v_{14} & v_{15}\\
\end{pmatrix}
$$
Then we do
\begin{eqnarray*}
G(v_0, v_4, v_8, v_{12})\quad G(v_1, v_5, v_9, v_{13}) \\ G(v_2, v_6, v_{10}, v_{14}) \quad G(v_3, v_7, v_{11}, v_{15})\\
G(v_0, v_5, v_{10}, v_{15})\quad G(v_1, v_6, v_{11}, v_{12}) \\ G(v_2, v_7, v_{8}, v_{13}) \quad G(v_3, v_4, v_{9}, v_{14}),
\end{eqnarray*}
where $G$ applies to $(a,b,c,d)$ as follows:
\begin{equation}\label{eq:blake-orig}
\begin{aligned}
a &\leftarrow a + b+ 2*a_L*b_L;\\
d &\leftarrow (d\oplus a)\ggg 32;\\
c &\leftarrow c + d+ 2*c_L*d_L;\\
b &\leftarrow (b\oplus c)\ggg 24;\\
a &\leftarrow a + b+ 2*a_L*b_L;\\
d &\leftarrow (d\oplus a)\ggg 16;\\
c &\leftarrow c + d+ 2*c_L*d_L;\\
b &\leftarrow (b\oplus c)\ggg 63;\\
\end{aligned}
\end{equation}
Here $+$ are additions modulo $2^{64}$ and $\ggg$ are 64-bit rotations to the right. $x_L$ is the 64-bit integer $x$ truncated to the 32 least significant bits. The modular additions in $G$ are combined with 64-bit multiplications (that is the only difference to the original Blake2 design).
Our motivation in adding multiplications is to increase the circuit depth (and thus the running time) of a potential ASIC implementation while having roughly the same running time on CPU thanks to parallelism and pipelining. Extra multiplications in the scheme serve well, as the best addition-based circuits for multiplication have latency about 4-5 times the addition latency for 32-bit multiplication (or roughly $\log_n$ for $n$-bit multiplication).
As a result, any output 64-bit word of $\mathcal{P}$ is implemented by a chain of additions, multiplications, XORs, and rotations. The shortest possible chain for the 1 KB-block (e.g, from $v_0$ to $v_0$) consists of 12 MULs, 12 XORs, and 12 rotations.
\section{Additional functionality}
The following functionality is enabled in the extended implementation\footnote{\url{https://github.com/khovratovich/Argon2}} but is
not officially included in the PHC release\footnote{\url{https://github.com/P-H-C/phc-winner-argon2}}:
\begin{itemize}
\item Hybrid construction \textsf{Argon2id}, which has type $y=2$ (used in the pre-hashing and address generation). In the first two slices of the first pass it generates reference addresses data-independently as in \textsf{Argon2i}, whereas in later slices and next passes it generates them data-dependently as in \textsf{Argon2d}.
\item Sbox-hardened version \textsf{Argon2ds}, which has type $y=4$. In this version the compression function $G$ includes the 64-bit transformation $\mathcal{T}$, which is a chain of S-boxes, multiplications, and additions. In terms of Section~\ref{sec:compr}, we additionally compute
\begin{align*}
W&= LSB_{64}(R_0\oplus R_{63});\\
Z_0 &+= \mathcal{T}(W);\\
Z_{63}&+=\mathcal{T}(W)\ll 32.
\end{align*}
The transformation $\mathcal{T}$, on the 64-bit word $W$ is defined as follows:
\begin{itemize}
\item Repeat 96 times:
\begin{enumerate}
\item $y\leftarrow S[W[8:0]]$;
\item $z\leftarrow S[512+W[40:32]]$;
\item $W \leftarrow ((W[31:0]\circ W[63:32])+y)\oplus z$.
\end{enumerate}
\item $T(W)\leftarrow W$.
\end{itemize}
All the operations are performed modulo $2^{64}$. $\circ$ is the 64-bit multiplication, $S[]$ is the Sbox (lookup table) that maps 10-bit indices to 64-bit values. $W[i:j]$ is the subset of bits of $W$ from $i$ to $j$ inclusive.
The S-box is generated in the start of every pass in the following procedure. In total we specify $2^{10}\cdot 8$ bytes, or 8 KBytes. We take block $B[0][0]$ and apply $F$ (the core of $G$) to it 16 times. After each two iterations we use the entire 1024-byte value and initialize 128 lookup values.
The properties of $\mathcal{T}$ and its initialization procedure is subject to change.
\end{itemize}
\section{Change log}
\subsection{v.1.3}
\begin{itemize}
\item The blocks are XORed with, not overwritten in the second pass and later;
\item The version number byte is now $0x13$.
\end{itemize}
\subsection{v1.2.1 -- February 1st, 2016}
\begin{itemize}
\item The total number of blocks can reach $2^{32}-1$;
\item The reference block index now requires 64 bits; the lane number is computed separately.
\item New modes \textsf{Argon2id} and \textsf{Argon2ds} are added as optional.
\end{itemize}
The specification of v1.2.1 released on 26th August, 2015, had incorrect description of the first block generation. The version released on 2d September, 2015, had incorrect description of the counter used in generating addresses for \textsf{Argon2i}. The version released on September 8th, 2015, lacked the "Recommended parameters" section. The version released on October 1st, 2015,
had the maximal parallelism level of 255 lanes. The version released on November 3d, 2015, had a typo. The versions released on November 5th and December 26th, had incorrect description of the first block generation and the variable-length hash function.
\subsection{v1.2 -- 21th June, 2015}
Non-uniform indexing rule, the compression function gets multiplications.
\subsection{v1.1 -- 6th February, 2015}
\begin{itemize}
\item New indexing rule added to avoid collision with a proof.
\item New rule to generate first two blocks in each lane.
\item Non-zero constant added to the input block used to generate addresses in \textsf{Argon2i}.
\end{itemize}
\end{document}

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Stefan Savage},
title = {Hey, you, get off of my cloud: exploring information leakage in third-party
compute clouds},
booktitle = {ACM {CCS}'09},
year = {2009},
pages = {199--212}
}
@MISC{bitcoin,
title = {Bitcoin: Mining hardware comparison},
year={2014},
note = {available at \url{https://en.bitcoin.it/wiki/Mining_hardware_comparison}. We compare $2^{32}$ hashes per joule on the best ASICs with $2^{17}$ hashes per joule on the most efficient x86-laptops.}
}
@MISC{litecoin-comp,
title = {Litecoin: Mining hardware comparison},
note = {\url{https://litecoin.info/Mining_hardware_comparison}}
}
@article{AbadiBMW05,
author = {Mart{\'{\i}}n Abadi and
Michael Burrows and
Mark S. Manasse and
Ted Wobber},
title = {Moderately hard, memory-bound functions},
journal = {{ACM} Trans. Internet Techn.},
year = {2005},
volume = {5},
number = {2},
pages = {299--327},
url = {http://doi.acm.org/10.1145/1064340.1064341},
doi = {10.1145/1064340.1064341},
timestamp = {Tue, 09 Sep 2014 16:27:47 +0200},
biburl = {http://dblp.uni-trier.de/rec/bib/journals/toit/AbadiBMW05},
bibsource = {dblp computer science bibliography, http://dblp.org}
}
@article{Pippenger77,
author = {Nicholas Pippenger},
title = {Superconcentrators},
journal = {{SIAM} J. Comput.},
year = {1977},
volume = {6},
number = {2},
pages = {298--304},
url = {http://dx.doi.org/10.1137/0206022},
doi = {10.1137/0206022},
timestamp = {Tue, 09 Sep 2014 16:52:40 +0200},
biburl = {http://dblp.uni-trier.de/rec/bib/journals/siamcomp/Pippenger77},
bibsource = {dblp computer science bibliography, http://dblp.org}
}
@TECHREPORT{lyra,
author = {Marcos A. Simplicio Jr and Leonardo C. Almeida and Ewerton R. Andrade and Paulo C. F. dos Santos and Paulo S. L. M. Barreto},
title = {The {Lyra2} reference guide, version 2.3.2},
year = {2014},
month = {april},
note = {available at \url{http://lyra-kdf.net/Lyra2ReferenceGuide_v1.pdf}},
}
@inproceedings{Thompson79,
author = {Clark D. Thompson},
title = {Area-Time Complexity for {VLSI}},
booktitle = {STOC'79},
pages = {81--88},
year = {1979},
publisher = {{ACM}}
}
@TECHREPORT{pomelo,
author = {Hongjun Wu},
title = {{POMELO}:
A Password Hashing Algorithm},
year = {2014},
note = {available at \url{https://password-hashing.net/submissions/specs/POMELO-v1.pdf}},
}
@inproceedings{knudsen1998analysis,
title={Analysis methods for (alleged) {RC4}},
author={Knudsen, Lars R and Meier, Willi and Preneel, Bart and Rijmen, Vincent and Verdoolaege, Sven},
booktitle={Advances in Cryptology—ASIACRYPT’98},
pages={327--341},
year={1998},
organization={Springer}
}
@MISC{fpga,
title = {Energy-efficient bcrypt cracking},
author={Katja Malvoni},
note = {Passwords'14 conference, available at \url{http://www.openwall.com/presentations/Passwords14-Energy-Efficient-Cracking/}}
}
@MISC{ripper,
title = {Software tool: {John the Ripper} password cracker},
note = {\url{http://www.openwall.com/john/}}
}
@MISC{sharcs,
title = {{SHARCS} -- Special-purpose Hardware for Attacking Cryptographic Systems},
note = {\url{http://www.sharcs.org/}}
}
@article{Wiener04,
author = {Michael J. Wiener},
title = {The Full Cost of Cryptanalytic Attacks},
journal = {J. Cryptology},
year = {2004},
volume = {17},
number = {2},
pages = {105--124},
url = {http://dx.doi.org/10.1007/s00145-003-0213-5},
doi = {10.1007/s00145-003-0213-5},
timestamp = {Sat, 27 Sep 2014 18:00:09 +0200},
biburl = {http://dblp.uni-trier.de/rec/bib/journals/joc/Wiener04},
bibsource = {dblp computer science bibliography, http://dblp.org}
}
@inproceedings{MukhopadhyayS06,
author = {Sourav Mukhopadhyay and
Palash Sarkar},
title = {On the Effectiveness of {TMTO} and Exhaustive Search Attacks},
booktitle = {{IWSEC} 2006},
year = {2006},
pages = {337--352},
series = {Lecture Notes in Computer Science},
volume = {4266},
publisher = {Springer}
}
@inproceedings{SprengerB12,
author = {Martijn Sprengers and Lejla Batina},
title = {Speeding up {GPU-based} password cracking},
booktitle = {SHARCS'12},
year = {2012},
note = {available at \url{http://2012.sharcs.org/record.pdf}}
}
@article{nakamoto2012bitcoin,
title={Bitcoin: A peer-to-peer electronic cash system},
author={Nakamoto, Satoshi},
note={\url{http://www. bitcoin.org/bitcoin.pdf}},
year={2009}
}
@inproceedings{BernsteinL13,
author = {Daniel J. Bernstein and
Tanja Lange},
title = {Non-uniform Cracks in the Concrete: The Power of Free Precomputation},
booktitle = {ASIACRYPT'13},
year = {2013},
pages = {321--340},
series = {Lecture Notes in Computer Science},
volume = {8270},
publisher = {Springer}
}
@inproceedings{AumassonNWW13,
author = {Jean{-}Philippe Aumasson and
Samuel Neves and
Zooko Wilcox{-}O'Hearn and
Christian Winnerlein},
title = {{BLAKE2:} Simpler, Smaller, Fast as {MD5}},
booktitle = {{ACNS}'13},
pages = {119--135},
series = {Lecture Notes in Computer Science},
year = {2013},
volume = {7954},
publisher = {Springer}
}
@article{liu2013parallel,
author = {Bin Liu and Bevan M. Baas},
title = {Parallel {AES} Encryption Engines for Many-Core Processor Arrays},
journal = {{IEEE} Transactions on Computers},
year = {2013},
volume = {62},
number = {3},
pages = {536--547},
month = mar,
}
@article{ForlerLLW14,
author = {Christian Forler and
Eik List and
Stefan Lucks and
Jakob Wenzel},
title = {Overview of the Candidates for the Password Hashing Competition -
And their Resistance against Garbage-Collector Attacks},
journal = {{IACR} Cryptology ePrint Archive},
volume = {2014},
pages = {881},
year = {2014},
url = {http://eprint.iacr.org/2014/881},
timestamp = {Sat, 02 Mar 4439591 14:05:04 +},
biburl = {http://dblp.uni-trier.de/rec/bib/journals/iacr/ForlerLLW14},
bibsource = {dblp computer science bibliography, http://dblp.org}
}
@inproceedings{gurkaynak2012sha3,
author = {Frank G{\"{u}}rkaynak and Kris Gaj and Beat Muheim and Ekawat Homsirikamol and Christoph Keller and Marcin Rogawski and Hubert Kaeslin and Jens-Peter Kaps},
title = {Lessons Learned from Designing a 65nm {ASIC} for Evaluating Third Round {SHA-3} Candidates},
booktitle = {Third SHA-3 Candidate Conference},
month = mar,
year = {2012}
}
@inproceedings{giridhar2013dram,
author = {Bharan Giridhar and Michael Cieslak and Deepankar Duggal and Ronald G. Dreslinski and Hsing Min Chen and Robert Patti and Betina Hold and Chaitali Chakrabarti and Trevor N. Mudge and David Blaauw},
title = {Exploring {DRAM} organizations for energy-efficient and resilient
exascale memories},
booktitle = {International Conference for High Performance Computing, Networking,
Storage and Analysis (SC 2013)},
year = {2013},
pages = {23--35},
publisher = {ACM},
}
@inproceedings{BertoniDPA11,
author = {Guido Bertoni and
Joan Daemen and
Michael Peeters and
Gilles Van Assche},
title = {Duplexing the Sponge: Single-Pass Authenticated Encryption and Other
Applications},
booktitle = {{SAC}'11,},
series = {Lecture Notes in Computer Science},
volume = {7118},
pages = {320--337},
publisher = {Springer},
year = {2011}
}
@inproceedings{Rig,
author = {Donghoon Chang and Arpan Jati and Sweta Mishra and Somitra Sanadhya},
title = {Rig: A simple, secure and flexible design for Password Hashing},
booktitle = {Inscrypt'14},
series = {Lecture Notes in Computer Science, to appear},
publisher = {Springer},
year = {2014}
}
@article{BiryukovP14,
author = {Alex Biryukov and
Ivan Pustogarov},
title = {Proof-of-Work as Anonymous Micropayment: Rewarding a {Tor} Relay},
journal = {{IACR} Cryptology ePrint Archive 2014/1011},
note= {to appear at Financial Cryptography 2015},
url = {http://eprint.iacr.org/2014/1011},
timestamp = {Mon, 19 Jan 2015 11:11:51 +0100},
biburl = {http://dblp.uni-trier.de/rec/bib/journals/iacr/BiryukovP14},
bibsource = {dblp computer science bibliography, http://dblp.org}
}
@misc{Andersen14,
author = {David Andersen},
title = {A Public Review of Cuckoo Cycle},
howpublished = {\url{http://www.cs.cmu.edu/~dga/crypto/cuckoo/analysis.pdf}},
year = {2014}
}
@misc{Tromp14,
author = {John Tromp},
title = {Cuckoo Cycle: a memory bound graph-theoretic proof-of-work},
howpublished = {Cryptology ePrint Archive, Report 2014/059},
year = {2014},
note = {\url{http://eprint.iacr.org/2014/059}, project webpage \url{https://github.com/tromp/cuckoo}},
}
@misc{cryptoeprint:2015:136,
author = {Marcos A. Simplicio Jr. and Leonardo C. Almeida and Ewerton R. Andrade and Paulo C. F. dos Santos and Paulo S. L. M. Barreto},
title = {Lyra2: Password Hashing Scheme with improved security against time-memory trade-offs},
howpublished = {Cryptology ePrint Archive, Report 2015/136},
year = {2015},
note = {\url{http://eprint.iacr.org/}},
}
@article{Corrigan-GibbsB16,
author = {Henry Corrigan{-}Gibbs and
Dan Boneh and
Stuart E. Schechter},
title = {Balloon Hashing: Provably Space-Hard Hash Functions with Data-Independent
Access Patterns},
journal = {{IACR} Cryptology ePrint Archive},
volume = {2016},
pages = {27},
year = {2016}
}
@article{AB16,
author = {Joel Alwen and Jeremiah Blocki},
title = {Efficiently Computing Data-Independent Memory-Hard Functions},
journal = {{IACR} Cryptology ePrint Archive},
volume = {2016},
pages = {115},
year = {2016}
}

60
rust/ares/src/urcrypt/argon2/man/argon2.1
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@ -1,60 +0,0 @@
.TH ARGON2 "1" "April 2016" "argon2 " "User Commands"
.SH NAME
argon2 \- generate argon2 hashes
.SH SYNOPSIS
.B argon2 salt
.RB [ OPTIONS ]
.SH DESCRIPTION
Generate Argon2 hashes from the command line.
The supplied salt (the first argument to the command) must be at least
8 octets in length, and the password is supplied on standard input.
By default, this uses Argon2i variant (where memory access is
independent of secret data) which is the preferred one for password
hashing and password-based key derivation.
.SH OPTIONS
.TP
.B \-h
Display tool usage
.TP
.B \-d
Use Argon2d instead of Argon2i (Argon2i is the default)
.TP
.B \-id
Use Argon2id instead of Argon2i (Argon2i is the default)
.TP
.B \-u
Use Argon2u instead of Argon2i (Argon2i is the default)
.TP
.BI \-t " N"
Sets the number of iterations to N (default = 3)
.TP
.BI \-m " N"
Sets the memory usage of 2^N KiB (default = 12)
.TP
.BI \-p " N"
Sets parallelism to N threads (default = 1)
.TP
.BI \-l " N"
Sets hash output length to N bytes (default = 32)
.TP
.B \-e
Output only encoded hash
.TP
.B \-r
Output only the raw bytes of the hash
.TP
.B \-v (10|13)
Argon2 version (defaults to the most recent version, currently 13)
.SH COPYRIGHT
This manpage was written by \fBDaniel Kahn Gillmor\fR for the Debian
distribution (but may be used by others). It is released, like the
rest of this Argon2 implementation, under a dual license. You may use this work
under the terms of a Creative Commons CC0 1.0 License/Waiver or the Apache
Public License 2.0, at your option.

33
rust/ares/src/urcrypt/argon2/meson.build
View File

@ -1,33 +0,0 @@
project('argon2', 'c', version : '1')
legacy_meson = false
detect_meson_version = run_command('meson', '--version')
meson_ver = detect_meson_version.stdout()
if(meson_ver == '0.29.0\n')
legacy_meson = true
elif(not meson.version().version_compare('>=0.40.0'))
error('Meson 0.29.0 is last legacy version supported. Otherwise please upgrade to 0.40.0 or higher.')
endif
lib_src = ['src/argon2.c',
'src/bench.c',
'src/blake2/blake2b.c',
'src/core.c',
'src/encoding.c',
'src/genkat.c',
'src/opt.c',
'src/ref.c',
'src/run.c',
'src/test.c',
'src/thread.c']
inc = include_directories(['./include'])
lib = static_library('argon2', sources: lib_src,
include_directories: inc,
c_args: ['-Wall', '-Wno-unused-value', '-Wno-unused-function', '-DARGON2_NO_THREADS'],
install: false)
argon2_dep = declare_dependency(include_directories : inc, link_with : lib)

490
rust/ares/src/urcrypt/argon2/src/argon2.c
View File

@ -1,490 +0,0 @@
/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "argon2.h"
#include "encoding.h"
#include "core.h"
const char *argon2_type2string(argon2_type type, int uppercase) {
switch (type) {
case Argon2_d:
return uppercase ? "Argon2d" : "argon2d";
case Argon2_i:
return uppercase ? "Argon2i" : "argon2i";
case Argon2_id:
return uppercase ? "Argon2id" : "argon2id";
case Argon2_u:
return uppercase ? "Argon2u" : "argon2u";
}
return NULL;
}
int argon2_ctx(argon2_context *context, argon2_type type) {
/* 1. Validate all inputs */
int result = validate_inputs(context);
uint32_t memory_blocks, segment_length;
argon2_instance_t instance;
if (ARGON2_OK != result) {
return result;
}
if (Argon2_d != type &&
Argon2_i != type &&
Argon2_id != type &&
Argon2_u != type) {
return ARGON2_INCORRECT_TYPE;
}
/* 2. Align memory size */
/* Minimum memory_blocks = 8L blocks, where L is the number of lanes */
memory_blocks = context->m_cost;
if (memory_blocks < 2 * ARGON2_SYNC_POINTS * context->lanes) {
memory_blocks = 2 * ARGON2_SYNC_POINTS * context->lanes;
}
segment_length = memory_blocks / (context->lanes * ARGON2_SYNC_POINTS);
/* Ensure that all segments have equal length */
memory_blocks = segment_length * (context->lanes * ARGON2_SYNC_POINTS);
instance.version = context->version;
instance.memory = NULL;
instance.passes = context->t_cost;
instance.memory_blocks = memory_blocks;
instance.segment_length = segment_length;
instance.lane_length = segment_length * ARGON2_SYNC_POINTS;
instance.lanes = context->lanes;
instance.threads = context->threads;
instance.type = type;
if (instance.threads > instance.lanes) {
instance.threads = instance.lanes;
}
/* 3. Initialization: Hashing inputs, allocating memory, filling first
* blocks
*/
result = initialize(&instance, context);
if (ARGON2_OK != result) {
return result;
}
/* 4. Filling memory */
result = fill_memory_blocks(&instance);
if (ARGON2_OK != result) {
return result;
}
/* 5. Finalization */
finalize(context, &instance);
return ARGON2_OK;
}
int argon2_hash(const uint32_t t_cost, const uint32_t m_cost,
const uint32_t parallelism, const void *pwd,
const size_t pwdlen, const void *salt, const size_t saltlen,
void *hash, const size_t hashlen, char *encoded,
const size_t encodedlen, argon2_type type,
const uint32_t version){
argon2_context context;
int result;
uint8_t *out;
if (pwdlen > ARGON2_MAX_PWD_LENGTH) {
return ARGON2_PWD_TOO_LONG;
}
if (saltlen > ARGON2_MAX_SALT_LENGTH) {
return ARGON2_SALT_TOO_LONG;
}
if (hashlen > ARGON2_MAX_OUTLEN) {
return ARGON2_OUTPUT_TOO_LONG;
}
if (hashlen < ARGON2_MIN_OUTLEN) {
return ARGON2_OUTPUT_TOO_SHORT;
}
out = malloc(hashlen);
if (!out) {
return ARGON2_MEMORY_ALLOCATION_ERROR;
}
context.out = (uint8_t *)out;
context.outlen = (uint32_t)hashlen;
context.pwd = CONST_CAST(uint8_t *)pwd;
context.pwdlen = (uint32_t)pwdlen;
context.salt = CONST_CAST(uint8_t *)salt;
context.saltlen = (uint32_t)saltlen;
context.secret = NULL;
context.secretlen = 0;
context.ad = NULL;
context.adlen = 0;
context.t_cost = t_cost;
context.m_cost = m_cost;
context.lanes = parallelism;
context.threads = parallelism;
context.allocate_cbk = NULL;
context.free_cbk = NULL;
context.flags = ARGON2_DEFAULT_FLAGS;
context.version = version;
result = argon2_ctx(&context, type);
if (result != ARGON2_OK) {
clear_internal_memory(out, hashlen);
free(out);
return result;
}
/* if raw hash requested, write it */
if (hash) {
memcpy(hash, out, hashlen);
}
/* if encoding requested, write it */
if (encoded && encodedlen) {
if (encode_string(encoded, encodedlen, &context, type) != ARGON2_OK) {
clear_internal_memory(out, hashlen); /* wipe buffers if error */
clear_internal_memory(encoded, encodedlen);
free(out);
return ARGON2_ENCODING_FAIL;
}
}
clear_internal_memory(out, hashlen);
free(out);
return ARGON2_OK;
}
int argon2i_hash_encoded(const uint32_t t_cost, const uint32_t m_cost,
const uint32_t parallelism, const void *pwd,
const size_t pwdlen, const void *salt,
const size_t saltlen, const size_t hashlen,
char *encoded, const size_t encodedlen) {
return argon2_hash(t_cost, m_cost, parallelism, pwd, pwdlen, salt, saltlen,
NULL, hashlen, encoded, encodedlen, Argon2_i,
ARGON2_VERSION_NUMBER);
}
int argon2i_hash_raw(const uint32_t t_cost, const uint32_t m_cost,
const uint32_t parallelism, const void *pwd,
const size_t pwdlen, const void *salt,
const size_t saltlen, void *hash, const size_t hashlen) {
return argon2_hash(t_cost, m_cost, parallelism, pwd, pwdlen, salt, saltlen,
hash, hashlen, NULL, 0, Argon2_i, ARGON2_VERSION_NUMBER);
}
int argon2d_hash_encoded(const uint32_t t_cost, const uint32_t m_cost,
const uint32_t parallelism, const void *pwd,
const size_t pwdlen, const void *salt,
const size_t saltlen, const size_t hashlen,
char *encoded, const size_t encodedlen) {
return argon2_hash(t_cost, m_cost, parallelism, pwd, pwdlen, salt, saltlen,
NULL, hashlen, encoded, encodedlen, Argon2_d,
ARGON2_VERSION_NUMBER);
}
int argon2d_hash_raw(const uint32_t t_cost, const uint32_t m_cost,
const uint32_t parallelism, const void *pwd,
const size_t pwdlen, const void *salt,
const size_t saltlen, void *hash, const size_t hashlen) {
return argon2_hash(t_cost, m_cost, parallelism, pwd, pwdlen, salt, saltlen,
hash, hashlen, NULL, 0, Argon2_d, ARGON2_VERSION_NUMBER);
}
int argon2id_hash_encoded(const uint32_t t_cost, const uint32_t m_cost,
const uint32_t parallelism, const void *pwd,
const size_t pwdlen, const void *salt,
const size_t saltlen, const size_t hashlen,
char *encoded, const size_t encodedlen) {
return argon2_hash(t_cost, m_cost, parallelism, pwd, pwdlen, salt, saltlen,
NULL, hashlen, encoded, encodedlen, Argon2_id,
ARGON2_VERSION_NUMBER);
}
int argon2id_hash_raw(const uint32_t t_cost, const uint32_t m_cost,
const uint32_t parallelism, const void *pwd,
const size_t pwdlen, const void *salt,
const size_t saltlen, void *hash, const size_t hashlen) {
return argon2_hash(t_cost, m_cost, parallelism, pwd, pwdlen, salt, saltlen,
hash, hashlen, NULL, 0, Argon2_id,
ARGON2_VERSION_NUMBER);
}
int argon2u_hash_encoded(const uint32_t t_cost, const uint32_t m_cost,
const uint32_t parallelism, const void *pwd,
const size_t pwdlen, const void *salt,
const size_t saltlen, const size_t hashlen,
char *encoded, const size_t encodedlen) {
return argon2_hash(t_cost, m_cost, parallelism, pwd, pwdlen, salt, saltlen,
NULL, hashlen, encoded, encodedlen, Argon2_u,
ARGON2_VERSION_NUMBER);
}
int argon2u_hash_raw(const uint32_t t_cost, const uint32_t m_cost,
const uint32_t parallelism, const void *pwd,
const size_t pwdlen, const void *salt,
const size_t saltlen, void *hash, const size_t hashlen) {
return argon2_hash(t_cost, m_cost, parallelism, pwd, pwdlen, salt, saltlen,
hash, hashlen, NULL, 0, Argon2_u, ARGON2_VERSION_NUMBER);
}
static int argon2_compare(const uint8_t *b1, const uint8_t *b2, size_t len) {
size_t i;
uint8_t d = 0U;
for (i = 0U; i < len; i++) {
d |= b1[i] ^ b2[i];
}
return (int)((1 & ((d - 1) >> 8)) - 1);
}
int argon2_verify(const char *encoded, const void *pwd, const size_t pwdlen,
argon2_type type) {
argon2_context ctx;
uint8_t *desired_result = NULL;
int ret = ARGON2_OK;
size_t encoded_len;
uint32_t max_field_len;
if (pwdlen > ARGON2_MAX_PWD_LENGTH) {
return ARGON2_PWD_TOO_LONG;
}
if (encoded == NULL) {
return ARGON2_DECODING_FAIL;
}
encoded_len = strlen(encoded);
if (encoded_len > UINT32_MAX) {
return ARGON2_DECODING_FAIL;
}
/* No field can be longer than the encoded length */
max_field_len = (uint32_t)encoded_len;
ctx.saltlen = max_field_len;
ctx.outlen = max_field_len;
ctx.salt = malloc(ctx.saltlen);
ctx.out = malloc(ctx.outlen);
if (!ctx.salt || !ctx.out) {
ret = ARGON2_MEMORY_ALLOCATION_ERROR;
goto fail;
}
ctx.pwd = (uint8_t *)pwd;
ctx.pwdlen = (uint32_t)pwdlen;
ret = decode_string(&ctx, encoded, type);
if (ret != ARGON2_OK) {
goto fail;
}
/* Set aside the desired result, and get a new buffer. */
desired_result = ctx.out;
ctx.out = malloc(ctx.outlen);
if (!ctx.out) {
ret = ARGON2_MEMORY_ALLOCATION_ERROR;
goto fail;
}
ret = argon2_verify_ctx(&ctx, (char *)desired_result, type);
if (ret != ARGON2_OK) {
goto fail;
}
fail:
free(ctx.salt);
free(ctx.out);
free(desired_result);
return ret;
}
int argon2i_verify(const char *encoded, const void *pwd, const size_t pwdlen) {
return argon2_verify(encoded, pwd, pwdlen, Argon2_i);
}
int argon2d_verify(const char *encoded, const void *pwd, const size_t pwdlen) {
return argon2_verify(encoded, pwd, pwdlen, Argon2_d);
}
int argon2id_verify(const char *encoded, const void *pwd, const size_t pwdlen) {
return argon2_verify(encoded, pwd, pwdlen, Argon2_id);
}
int argon2u_verify(const char *encoded, const void *pwd, const size_t pwdlen) {
return argon2_verify(encoded, pwd, pwdlen, Argon2_u);
}
int argon2d_ctx(argon2_context *context) {
return argon2_ctx(context, Argon2_d);
}
int argon2i_ctx(argon2_context *context) {
return argon2_ctx(context, Argon2_i);
}
int argon2id_ctx(argon2_context *context) {
return argon2_ctx(context, Argon2_id);
}
int argon2u_ctx(argon2_context *context) {
return argon2_ctx(context, Argon2_u);
}
int argon2_verify_ctx(argon2_context *context, const char *hash,
argon2_type type) {
int ret = argon2_ctx(context, type);
if (ret != ARGON2_OK) {
return ret;
}
if (argon2_compare((uint8_t *)hash, context->out, context->outlen)) {
return ARGON2_VERIFY_MISMATCH;
}
return ARGON2_OK;
}
int argon2d_verify_ctx(argon2_context *context, const char *hash) {
return argon2_verify_ctx(context, hash, Argon2_d);
}
int argon2i_verify_ctx(argon2_context *context, const char *hash) {
return argon2_verify_ctx(context, hash, Argon2_i);
}
int argon2id_verify_ctx(argon2_context *context, const char *hash) {
return argon2_verify_ctx(context, hash, Argon2_id);
}
int argon2u_verify_ctx(argon2_context *context, const char *hash) {
return argon2_verify_ctx(context, hash, Argon2_u);
}
const char *argon2_error_message(int error_code) {
switch (error_code) {
case ARGON2_OK:
return "OK";
case ARGON2_OUTPUT_PTR_NULL:
return "Output pointer is NULL";
case ARGON2_OUTPUT_TOO_SHORT:
return "Output is too short";
case ARGON2_OUTPUT_TOO_LONG:
return "Output is too long";
case ARGON2_PWD_TOO_SHORT:
return "Password is too short";
case ARGON2_PWD_TOO_LONG:
return "Password is too long";
case ARGON2_SALT_TOO_SHORT:
return "Salt is too short";
case ARGON2_SALT_TOO_LONG:
return "Salt is too long";
case ARGON2_AD_TOO_SHORT:
return "Associated data is too short";
case ARGON2_AD_TOO_LONG:
return "Associated data is too long";
case ARGON2_SECRET_TOO_SHORT:
return "Secret is too short";
case ARGON2_SECRET_TOO_LONG:
return "Secret is too long";
case ARGON2_TIME_TOO_SMALL:
return "Time cost is too small";
case ARGON2_TIME_TOO_LARGE:
return "Time cost is too large";
case ARGON2_MEMORY_TOO_LITTLE:
return "Memory cost is too small";
case ARGON2_MEMORY_TOO_MUCH:
return "Memory cost is too large";
case ARGON2_LANES_TOO_FEW:
return "Too few lanes";
case ARGON2_LANES_TOO_MANY:
return "Too many lanes";
case ARGON2_PWD_PTR_MISMATCH:
return "Password pointer is NULL, but password length is not 0";
case ARGON2_SALT_PTR_MISMATCH:
return "Salt pointer is NULL, but salt length is not 0";
case ARGON2_SECRET_PTR_MISMATCH:
return "Secret pointer is NULL, but secret length is not 0";
case ARGON2_AD_PTR_MISMATCH:
return "Associated data pointer is NULL, but ad length is not 0";
case ARGON2_MEMORY_ALLOCATION_ERROR:
return "Memory allocation error";
case ARGON2_FREE_MEMORY_CBK_NULL:
return "The free memory callback is NULL";
case ARGON2_ALLOCATE_MEMORY_CBK_NULL:
return "The allocate memory callback is NULL";
case ARGON2_INCORRECT_PARAMETER:
return "Argon2_Context context is NULL";
case ARGON2_INCORRECT_TYPE:
return "There is no such version of Argon2";
case ARGON2_OUT_PTR_MISMATCH:
return "Output pointer mismatch";
case ARGON2_THREADS_TOO_FEW:
return "Not enough threads";
case ARGON2_THREADS_TOO_MANY:
return "Too many threads";
case ARGON2_MISSING_ARGS:
return "Missing arguments";
case ARGON2_ENCODING_FAIL:
return "Encoding failed";
case ARGON2_DECODING_FAIL:
return "Decoding failed";
case ARGON2_THREAD_FAIL:
return "Threading failure";
case ARGON2_DECODING_LENGTH_FAIL:
return "Some of encoded parameters are too long or too short";
case ARGON2_VERIFY_MISMATCH:
return "The password does not match the supplied hash";
default:
return "Unknown error code";
}
}
size_t argon2_encodedlen(uint32_t t_cost, uint32_t m_cost, uint32_t parallelism,
uint32_t saltlen, uint32_t hashlen, argon2_type type) {
return strlen("$$v=$m=,t=,p=$$") + strlen(argon2_type2string(type, 0)) +
numlen(t_cost) + numlen(m_cost) + numlen(parallelism) +
b64len(saltlen) + b64len(hashlen) + numlen(ARGON2_VERSION_NUMBER) + 1;
}

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rust/ares/src/urcrypt/argon2/src/bench.c
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/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#ifdef _MSC_VER
#include <intrin.h>
#endif
#include "argon2.h"
static uint64_t rdtsc(void) {
#ifdef _MSC_VER
return __rdtsc();
#else
#if defined(__amd64__) || defined(__x86_64__)
uint64_t rax, rdx;
__asm__ __volatile__("rdtsc" : "=a"(rax), "=d"(rdx) : :);
return (rdx << 32) | rax;
#elif defined(__i386__) || defined(__i386) || defined(__X86__)
uint64_t rax;
__asm__ __volatile__("rdtsc" : "=A"(rax) : :);
return rax;
#else
#error "Not implemented!"
#endif
#endif
}
/*
* Benchmarks Argon2 with salt length 16, password length 16, t_cost 3,
and different m_cost and threads
*/
static void benchmark() {
#define BENCH_OUTLEN 16
#define BENCH_INLEN 16
const uint32_t inlen = BENCH_INLEN;
const unsigned outlen = BENCH_OUTLEN;
unsigned char out[BENCH_OUTLEN];
unsigned char pwd_array[BENCH_INLEN];
unsigned char salt_array[BENCH_INLEN];
#undef BENCH_INLEN
#undef BENCH_OUTLEN
uint32_t t_cost = 3;
uint32_t m_cost;
uint32_t thread_test[4] = {1, 2, 4, 8};
argon2_type types[3] = {Argon2_i, Argon2_d, Argon2_id};
memset(pwd_array, 0, inlen);
memset(salt_array, 1, inlen);
for (m_cost = (uint32_t)1 << 10; m_cost <= (uint32_t)1 << 22; m_cost *= 2) {
unsigned i;
for (i = 0; i < 4; ++i) {
double run_time = 0;
uint32_t thread_n = thread_test[i];
unsigned j;
for (j = 0; j < 3; ++j) {
clock_t start_time, stop_time;
uint64_t start_cycles, stop_cycles;
uint64_t delta;
double mcycles;
argon2_type type = types[j];
start_time = clock();
start_cycles = rdtsc();
argon2_hash(t_cost, m_cost, thread_n, pwd_array, inlen,
salt_array, inlen, out, outlen, NULL, 0, type,
ARGON2_VERSION_NUMBER);
stop_cycles = rdtsc();
stop_time = clock();
delta = (stop_cycles - start_cycles) / (m_cost);
mcycles = (double)(stop_cycles - start_cycles) / (1UL << 20);
run_time += ((double)stop_time - start_time) / (CLOCKS_PER_SEC);
printf("%s %d iterations %d MiB %d threads: %2.2f cpb %2.2f "
"Mcycles \n", argon2_type2string(type, 1), t_cost,
m_cost >> 10, thread_n, (float)delta / 1024, mcycles);
}
printf("%2.4f seconds\n\n", run_time);
}
}
}
int main() {
benchmark();
return ARGON2_OK;
}

156
rust/ares/src/urcrypt/argon2/src/blake2/blake2-impl.h
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@ -1,156 +0,0 @@
/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#ifndef PORTABLE_BLAKE2_IMPL_H
#define PORTABLE_BLAKE2_IMPL_H
#include <stdint.h>
#include <string.h>
#if defined(_MSC_VER)
#define BLAKE2_INLINE __inline
#elif defined(__GNUC__) || defined(__clang__)
#define BLAKE2_INLINE __inline__
#else
#define BLAKE2_INLINE
#endif
/* Argon2 Team - Begin Code */
/*
Not an exhaustive list, but should cover the majority of modern platforms
Additionally, the code will always be correct---this is only a performance
tweak.
*/
#if (defined(__BYTE_ORDER__) && \
(__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)) || \
defined(__LITTLE_ENDIAN__) || defined(__ARMEL__) || defined(__MIPSEL__) || \
defined(__AARCH64EL__) || defined(__amd64__) || defined(__i386__) || \
defined(_M_IX86) || defined(_M_X64) || defined(_M_AMD64) || \
defined(_M_ARM)
#define NATIVE_LITTLE_ENDIAN
#endif
/* Argon2 Team - End Code */
static BLAKE2_INLINE uint32_t load32(const void *src) {
#if defined(NATIVE_LITTLE_ENDIAN)
uint32_t w;
memcpy(&w, src, sizeof w);
return w;
#else
const uint8_t *p = (const uint8_t *)src;
uint32_t w = *p++;
w |= (uint32_t)(*p++) << 8;
w |= (uint32_t)(*p++) << 16;
w |= (uint32_t)(*p++) << 24;
return w;
#endif
}
static BLAKE2_INLINE uint64_t load64(const void *src) {
#if defined(NATIVE_LITTLE_ENDIAN)
uint64_t w;
memcpy(&w, src, sizeof w);
return w;
#else
const uint8_t *p = (const uint8_t *)src;
uint64_t w = *p++;
w |= (uint64_t)(*p++) << 8;
w |= (uint64_t)(*p++) << 16;
w |= (uint64_t)(*p++) << 24;
w |= (uint64_t)(*p++) << 32;
w |= (uint64_t)(*p++) << 40;
w |= (uint64_t)(*p++) << 48;
w |= (uint64_t)(*p++) << 56;
return w;
#endif
}
static BLAKE2_INLINE void store32(void *dst, uint32_t w) {
#if defined(NATIVE_LITTLE_ENDIAN)
memcpy(dst, &w, sizeof w);
#else
uint8_t *p = (uint8_t *)dst;
*p++ = (uint8_t)w;
w >>= 8;
*p++ = (uint8_t)w;
w >>= 8;
*p++ = (uint8_t)w;
w >>= 8;
*p++ = (uint8_t)w;
#endif
}
static BLAKE2_INLINE void store64(void *dst, uint64_t w) {
#if defined(NATIVE_LITTLE_ENDIAN)
memcpy(dst, &w, sizeof w);
#else
uint8_t *p = (uint8_t *)dst;
*p++ = (uint8_t)w;
w >>= 8;
*p++ = (uint8_t)w;
w >>= 8;
*p++ = (uint8_t)w;
w >>= 8;
*p++ = (uint8_t)w;
w >>= 8;
*p++ = (uint8_t)w;
w >>= 8;
*p++ = (uint8_t)w;
w >>= 8;
*p++ = (uint8_t)w;
w >>= 8;
*p++ = (uint8_t)w;
#endif
}
static BLAKE2_INLINE uint64_t load48(const void *src) {
const uint8_t *p = (const uint8_t *)src;
uint64_t w = *p++;
w |= (uint64_t)(*p++) << 8;
w |= (uint64_t)(*p++) << 16;
w |= (uint64_t)(*p++) << 24;
w |= (uint64_t)(*p++) << 32;
w |= (uint64_t)(*p++) << 40;
return w;
}
static BLAKE2_INLINE void store48(void *dst, uint64_t w) {
uint8_t *p = (uint8_t *)dst;
*p++ = (uint8_t)w;
w >>= 8;
*p++ = (uint8_t)w;
w >>= 8;
*p++ = (uint8_t)w;
w >>= 8;
*p++ = (uint8_t)w;
w >>= 8;
*p++ = (uint8_t)w;
w >>= 8;
*p++ = (uint8_t)w;
}
static BLAKE2_INLINE uint32_t rotr32(const uint32_t w, const unsigned c) {
return (w >> c) | (w << (32 - c));
}
static BLAKE2_INLINE uint64_t rotr64(const uint64_t w, const unsigned c) {
return (w >> c) | (w << (64 - c));
}
void clear_internal_memory(void *v, size_t n);
#endif

89
rust/ares/src/urcrypt/argon2/src/blake2/blake2.h
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/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#ifndef PORTABLE_BLAKE2_H
#define PORTABLE_BLAKE2_H
#include <argon2.h>
#if defined(__cplusplus)
extern "C" {
#endif
enum blake2b_constant {
BLAKE2B_BLOCKBYTES = 128,
BLAKE2B_OUTBYTES = 64,
BLAKE2B_KEYBYTES = 64,
BLAKE2B_SALTBYTES = 16,
BLAKE2B_PERSONALBYTES = 16
};
#pragma pack(push, 1)
typedef struct __blake2b_param {
uint8_t digest_length; /* 1 */
uint8_t key_length; /* 2 */
uint8_t fanout; /* 3 */
uint8_t depth; /* 4 */
uint32_t leaf_length; /* 8 */
uint64_t node_offset; /* 16 */
uint8_t node_depth; /* 17 */
uint8_t inner_length; /* 18 */
uint8_t reserved[14]; /* 32 */
uint8_t salt[BLAKE2B_SALTBYTES]; /* 48 */
uint8_t personal[BLAKE2B_PERSONALBYTES]; /* 64 */
} blake2b_param;
#pragma pack(pop)
typedef struct __blake2b_state {
uint64_t h[8];
uint64_t t[2];
uint64_t f[2];
uint8_t buf[BLAKE2B_BLOCKBYTES];
unsigned buflen;
unsigned outlen;
uint8_t last_node;
} blake2b_state;
/* Ensure param structs have not been wrongly padded */
/* Poor man's static_assert */
enum {
blake2_size_check_0 = 1 / !!(CHAR_BIT == 8),
blake2_size_check_2 =
1 / !!(sizeof(blake2b_param) == sizeof(uint64_t) * CHAR_BIT)
};
/* Streaming API */
ARGON2_LOCAL int blake2b_init(blake2b_state *S, size_t outlen);
ARGON2_LOCAL int blake2b_init_key(blake2b_state *S, size_t outlen, const void *key,
size_t keylen);
ARGON2_LOCAL int blake2b_init_param(blake2b_state *S, const blake2b_param *P);
ARGON2_LOCAL int blake2b_update(blake2b_state *S, const void *in, size_t inlen);
ARGON2_LOCAL int blake2b_final(blake2b_state *S, void *out, size_t outlen);
/* Simple API */
ARGON2_LOCAL int blake2b(void *out, size_t outlen, const void *in, size_t inlen,
const void *key, size_t keylen);
/* Argon2 Team - Begin Code */
ARGON2_LOCAL int blake2b_long(void *out, size_t outlen, const void *in, size_t inlen);
/* Argon2 Team - End Code */
#if defined(__cplusplus)
}
#endif
#endif

390
rust/ares/src/urcrypt/argon2/src/blake2/blake2b.c
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/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include "blake2.h"
#include "blake2-impl.h"
static const uint64_t blake2b_IV[8] = {
UINT64_C(0x6a09e667f3bcc908), UINT64_C(0xbb67ae8584caa73b),
UINT64_C(0x3c6ef372fe94f82b), UINT64_C(0xa54ff53a5f1d36f1),
UINT64_C(0x510e527fade682d1), UINT64_C(0x9b05688c2b3e6c1f),
UINT64_C(0x1f83d9abfb41bd6b), UINT64_C(0x5be0cd19137e2179)};
static const unsigned int blake2b_sigma[12][16] = {
{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
{14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3},
{11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4},
{7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8},
{9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13},
{2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9},
{12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11},
{13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10},
{6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5},
{10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13, 0},
{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
{14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3},
};
static BLAKE2_INLINE void blake2b_set_lastnode(blake2b_state *S) {
S->f[1] = (uint64_t)-1;
}
static BLAKE2_INLINE void blake2b_set_lastblock(blake2b_state *S) {
if (S->last_node) {
blake2b_set_lastnode(S);
}
S->f[0] = (uint64_t)-1;
}
static BLAKE2_INLINE void blake2b_increment_counter(blake2b_state *S,
uint64_t inc) {
S->t[0] += inc;
S->t[1] += (S->t[0] < inc);
}
static BLAKE2_INLINE void blake2b_invalidate_state(blake2b_state *S) {
clear_internal_memory(S, sizeof(*S)); /* wipe */
blake2b_set_lastblock(S); /* invalidate for further use */
}
static BLAKE2_INLINE void blake2b_init0(blake2b_state *S) {
memset(S, 0, sizeof(*S));
memcpy(S->h, blake2b_IV, sizeof(S->h));
}
int blake2b_init_param(blake2b_state *S, const blake2b_param *P) {
const unsigned char *p = (const unsigned char *)P;
unsigned int i;
if (NULL == P || NULL == S) {
return -1;
}
blake2b_init0(S);
/* IV XOR Parameter Block */
for (i = 0; i < 8; ++i) {
S->h[i] ^= load64(&p[i * sizeof(S->h[i])]);
}
S->outlen = P->digest_length;
return 0;
}
/* Sequential blake2b initialization */
int blake2b_init(blake2b_state *S, size_t outlen) {
blake2b_param P;
if (S == NULL) {
return -1;
}
if ((outlen == 0) || (outlen > BLAKE2B_OUTBYTES)) {
blake2b_invalidate_state(S);
return -1;
}
/* Setup Parameter Block for unkeyed BLAKE2 */
P.digest_length = (uint8_t)outlen;
P.key_length = 0;
P.fanout = 1;
P.depth = 1;
P.leaf_length = 0;
P.node_offset = 0;
P.node_depth = 0;
P.inner_length = 0;
memset(P.reserved, 0, sizeof(P.reserved));
memset(P.salt, 0, sizeof(P.salt));
memset(P.personal, 0, sizeof(P.personal));
return blake2b_init_param(S, &P);
}
int blake2b_init_key(blake2b_state *S, size_t outlen, const void *key,
size_t keylen) {
blake2b_param P;
if (S == NULL) {
return -1;
}
if ((outlen == 0) || (outlen > BLAKE2B_OUTBYTES)) {
blake2b_invalidate_state(S);
return -1;
}
if ((key == 0) || (keylen == 0) || (keylen > BLAKE2B_KEYBYTES)) {
blake2b_invalidate_state(S);
return -1;
}
/* Setup Parameter Block for keyed BLAKE2 */
P.digest_length = (uint8_t)outlen;
P.key_length = (uint8_t)keylen;
P.fanout = 1;
P.depth = 1;
P.leaf_length = 0;
P.node_offset = 0;
P.node_depth = 0;
P.inner_length = 0;
memset(P.reserved, 0, sizeof(P.reserved));
memset(P.salt, 0, sizeof(P.salt));
memset(P.personal, 0, sizeof(P.personal));
if (blake2b_init_param(S, &P) < 0) {
blake2b_invalidate_state(S);
return -1;
}
{
uint8_t block[BLAKE2B_BLOCKBYTES];
memset(block, 0, BLAKE2B_BLOCKBYTES);
memcpy(block, key, keylen);
blake2b_update(S, block, BLAKE2B_BLOCKBYTES);
/* Burn the key from stack */
clear_internal_memory(block, BLAKE2B_BLOCKBYTES);
}
return 0;
}
static void blake2b_compress(blake2b_state *S, const uint8_t *block) {
uint64_t m[16];
uint64_t v[16];
unsigned int i, r;
for (i = 0; i < 16; ++i) {
m[i] = load64(block + i * sizeof(m[i]));
}
for (i = 0; i < 8; ++i) {
v[i] = S->h[i];
}
v[8] = blake2b_IV[0];
v[9] = blake2b_IV[1];
v[10] = blake2b_IV[2];
v[11] = blake2b_IV[3];
v[12] = blake2b_IV[4] ^ S->t[0];
v[13] = blake2b_IV[5] ^ S->t[1];
v[14] = blake2b_IV[6] ^ S->f[0];
v[15] = blake2b_IV[7] ^ S->f[1];
#define G(r, i, a, b, c, d) \
do { \
a = a + b + m[blake2b_sigma[r][2 * i + 0]]; \
d = rotr64(d ^ a, 32); \
c = c + d; \
b = rotr64(b ^ c, 24); \
a = a + b + m[blake2b_sigma[r][2 * i + 1]]; \
d = rotr64(d ^ a, 16); \
c = c + d; \
b = rotr64(b ^ c, 63); \
} while ((void)0, 0)
#define ROUND(r) \
do { \
G(r, 0, v[0], v[4], v[8], v[12]); \
G(r, 1, v[1], v[5], v[9], v[13]); \
G(r, 2, v[2], v[6], v[10], v[14]); \
G(r, 3, v[3], v[7], v[11], v[15]); \
G(r, 4, v[0], v[5], v[10], v[15]); \
G(r, 5, v[1], v[6], v[11], v[12]); \
G(r, 6, v[2], v[7], v[8], v[13]); \
G(r, 7, v[3], v[4], v[9], v[14]); \
} while ((void)0, 0)
for (r = 0; r < 12; ++r) {
ROUND(r);
}
for (i = 0; i < 8; ++i) {
S->h[i] = S->h[i] ^ v[i] ^ v[i + 8];
}
#undef G
#undef ROUND
}
int blake2b_update(blake2b_state *S, const void *in, size_t inlen) {
const uint8_t *pin = (const uint8_t *)in;
if (inlen == 0) {
return 0;
}
/* Sanity check */
if (S == NULL || in == NULL) {
return -1;
}
/* Is this a reused state? */
if (S->f[0] != 0) {
return -1;
}
if (S->buflen + inlen > BLAKE2B_BLOCKBYTES) {
/* Complete current block */
size_t left = S->buflen;
size_t fill = BLAKE2B_BLOCKBYTES - left;
memcpy(&S->buf[left], pin, fill);
blake2b_increment_counter(S, BLAKE2B_BLOCKBYTES);
blake2b_compress(S, S->buf);
S->buflen = 0;
inlen -= fill;
pin += fill;
/* Avoid buffer copies when possible */
while (inlen > BLAKE2B_BLOCKBYTES) {
blake2b_increment_counter(S, BLAKE2B_BLOCKBYTES);
blake2b_compress(S, pin);
inlen -= BLAKE2B_BLOCKBYTES;
pin += BLAKE2B_BLOCKBYTES;
}
}
memcpy(&S->buf[S->buflen], pin, inlen);
S->buflen += (unsigned int)inlen;
return 0;
}
int blake2b_final(blake2b_state *S, void *out, size_t outlen) {
uint8_t buffer[BLAKE2B_OUTBYTES] = {0};
unsigned int i;
/* Sanity checks */
if (S == NULL || out == NULL || outlen < S->outlen) {
return -1;
}
/* Is this a reused state? */
if (S->f[0] != 0) {
return -1;
}
blake2b_increment_counter(S, S->buflen);
blake2b_set_lastblock(S);
memset(&S->buf[S->buflen], 0, BLAKE2B_BLOCKBYTES - S->buflen); /* Padding */
blake2b_compress(S, S->buf);
for (i = 0; i < 8; ++i) { /* Output full hash to temp buffer */
store64(buffer + sizeof(S->h[i]) * i, S->h[i]);
}
memcpy(out, buffer, S->outlen);
clear_internal_memory(buffer, sizeof(buffer));
clear_internal_memory(S->buf, sizeof(S->buf));
clear_internal_memory(S->h, sizeof(S->h));
return 0;
}
int blake2b(void *out, size_t outlen, const void *in, size_t inlen,
const void *key, size_t keylen) {
blake2b_state S;
int ret = -1;
/* Verify parameters */
if (NULL == in && inlen > 0) {
goto fail;
}
if (NULL == out || outlen == 0 || outlen > BLAKE2B_OUTBYTES) {
goto fail;
}
if ((NULL == key && keylen > 0) || keylen > BLAKE2B_KEYBYTES) {
goto fail;
}
if (keylen > 0) {
if (blake2b_init_key(&S, outlen, key, keylen) < 0) {
goto fail;
}
} else {
if (blake2b_init(&S, outlen) < 0) {
goto fail;
}
}
if (blake2b_update(&S, in, inlen) < 0) {
goto fail;
}
ret = blake2b_final(&S, out, outlen);
fail:
clear_internal_memory(&S, sizeof(S));
return ret;
}
/* Argon2 Team - Begin Code */
int blake2b_long(void *pout, size_t outlen, const void *in, size_t inlen) {
uint8_t *out = (uint8_t *)pout;
blake2b_state blake_state;
uint8_t outlen_bytes[sizeof(uint32_t)] = {0};
int ret = -1;
if (outlen > UINT32_MAX) {
goto fail;
}
/* Ensure little-endian byte order! */
store32(outlen_bytes, (uint32_t)outlen);
#define TRY(statement) \
do { \
ret = statement; \
if (ret < 0) { \
goto fail; \
} \
} while ((void)0, 0)
if (outlen <= BLAKE2B_OUTBYTES) {
TRY(blake2b_init(&blake_state, outlen));
TRY(blake2b_update(&blake_state, outlen_bytes, sizeof(outlen_bytes)));
TRY(blake2b_update(&blake_state, in, inlen));
TRY(blake2b_final(&blake_state, out, outlen));
} else {
uint32_t toproduce;
uint8_t out_buffer[BLAKE2B_OUTBYTES];
uint8_t in_buffer[BLAKE2B_OUTBYTES];
TRY(blake2b_init(&blake_state, BLAKE2B_OUTBYTES));
TRY(blake2b_update(&blake_state, outlen_bytes, sizeof(outlen_bytes)));
TRY(blake2b_update(&blake_state, in, inlen));
TRY(blake2b_final(&blake_state, out_buffer, BLAKE2B_OUTBYTES));
memcpy(out, out_buffer, BLAKE2B_OUTBYTES / 2);
out += BLAKE2B_OUTBYTES / 2;
toproduce = (uint32_t)outlen - BLAKE2B_OUTBYTES / 2;
while (toproduce > BLAKE2B_OUTBYTES) {
memcpy(in_buffer, out_buffer, BLAKE2B_OUTBYTES);
TRY(blake2b(out_buffer, BLAKE2B_OUTBYTES, in_buffer,
BLAKE2B_OUTBYTES, NULL, 0));
memcpy(out, out_buffer, BLAKE2B_OUTBYTES / 2);
out += BLAKE2B_OUTBYTES / 2;
toproduce -= BLAKE2B_OUTBYTES / 2;
}
memcpy(in_buffer, out_buffer, BLAKE2B_OUTBYTES);
TRY(blake2b(out_buffer, toproduce, in_buffer, BLAKE2B_OUTBYTES, NULL,
0));
memcpy(out, out_buffer, toproduce);
}
fail:
clear_internal_memory(&blake_state, sizeof(blake_state));
return ret;
#undef TRY
}
/* Argon2 Team - End Code */

471
rust/ares/src/urcrypt/argon2/src/blake2/blamka-round-opt.h
View File

@ -1,471 +0,0 @@
/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#ifndef BLAKE_ROUND_MKA_OPT_H
#define BLAKE_ROUND_MKA_OPT_H
#include "blake2-impl.h"
#include <emmintrin.h>
#if defined(__SSSE3__)
#include <tmmintrin.h> /* for _mm_shuffle_epi8 and _mm_alignr_epi8 */
#endif
#if defined(__XOP__) && (defined(__GNUC__) || defined(__clang__))
#include <x86intrin.h>
#endif
#if !defined(__AVX512F__)
#if !defined(__AVX2__)
#if !defined(__XOP__)
#if defined(__SSSE3__)
#define r16 \
(_mm_setr_epi8(2, 3, 4, 5, 6, 7, 0, 1, 10, 11, 12, 13, 14, 15, 8, 9))
#define r24 \
(_mm_setr_epi8(3, 4, 5, 6, 7, 0, 1, 2, 11, 12, 13, 14, 15, 8, 9, 10))
#define _mm_roti_epi64(x, c) \
(-(c) == 32) \
? _mm_shuffle_epi32((x), _MM_SHUFFLE(2, 3, 0, 1)) \
: (-(c) == 24) \
? _mm_shuffle_epi8((x), r24) \
: (-(c) == 16) \
? _mm_shuffle_epi8((x), r16) \
: (-(c) == 63) \
? _mm_xor_si128(_mm_srli_epi64((x), -(c)), \
_mm_add_epi64((x), (x))) \
: _mm_xor_si128(_mm_srli_epi64((x), -(c)), \
_mm_slli_epi64((x), 64 - (-(c))))
#else /* defined(__SSE2__) */
#define _mm_roti_epi64(r, c) \
_mm_xor_si128(_mm_srli_epi64((r), -(c)), _mm_slli_epi64((r), 64 - (-(c))))
#endif
#else
#endif
static BLAKE2_INLINE __m128i fBlaMka(__m128i x, __m128i y) {
const __m128i z = _mm_mul_epu32(x, y);
return _mm_add_epi64(_mm_add_epi64(x, y), _mm_add_epi64(z, z));
}
#define G1(A0, B0, C0, D0, A1, B1, C1, D1) \
do { \
A0 = fBlaMka(A0, B0); \
A1 = fBlaMka(A1, B1); \
\
D0 = _mm_xor_si128(D0, A0); \
D1 = _mm_xor_si128(D1, A1); \
\
D0 = _mm_roti_epi64(D0, -32); \
D1 = _mm_roti_epi64(D1, -32); \
\
C0 = fBlaMka(C0, D0); \
C1 = fBlaMka(C1, D1); \
\
B0 = _mm_xor_si128(B0, C0); \
B1 = _mm_xor_si128(B1, C1); \
\
B0 = _mm_roti_epi64(B0, -24); \
B1 = _mm_roti_epi64(B1, -24); \
} while ((void)0, 0)
#define G2(A0, B0, C0, D0, A1, B1, C1, D1) \
do { \
A0 = fBlaMka(A0, B0); \
A1 = fBlaMka(A1, B1); \
\
D0 = _mm_xor_si128(D0, A0); \
D1 = _mm_xor_si128(D1, A1); \
\
D0 = _mm_roti_epi64(D0, -16); \
D1 = _mm_roti_epi64(D1, -16); \
\
C0 = fBlaMka(C0, D0); \
C1 = fBlaMka(C1, D1); \
\
B0 = _mm_xor_si128(B0, C0); \
B1 = _mm_xor_si128(B1, C1); \
\
B0 = _mm_roti_epi64(B0, -63); \
B1 = _mm_roti_epi64(B1, -63); \
} while ((void)0, 0)
#if defined(__SSSE3__)
#define DIAGONALIZE(A0, B0, C0, D0, A1, B1, C1, D1) \
do { \
__m128i t0 = _mm_alignr_epi8(B1, B0, 8); \
__m128i t1 = _mm_alignr_epi8(B0, B1, 8); \
B0 = t0; \
B1 = t1; \
\
t0 = C0; \
C0 = C1; \
C1 = t0; \
\
t0 = _mm_alignr_epi8(D1, D0, 8); \
t1 = _mm_alignr_epi8(D0, D1, 8); \
D0 = t1; \
D1 = t0; \
} while ((void)0, 0)
#define UNDIAGONALIZE(A0, B0, C0, D0, A1, B1, C1, D1) \
do { \
__m128i t0 = _mm_alignr_epi8(B0, B1, 8); \
__m128i t1 = _mm_alignr_epi8(B1, B0, 8); \
B0 = t0; \
B1 = t1; \
\
t0 = C0; \
C0 = C1; \
C1 = t0; \
\
t0 = _mm_alignr_epi8(D0, D1, 8); \
t1 = _mm_alignr_epi8(D1, D0, 8); \
D0 = t1; \
D1 = t0; \
} while ((void)0, 0)
#else /* SSE2 */
#define DIAGONALIZE(A0, B0, C0, D0, A1, B1, C1, D1) \
do { \
__m128i t0 = D0; \
__m128i t1 = B0; \
D0 = C0; \
C0 = C1; \
C1 = D0; \
D0 = _mm_unpackhi_epi64(D1, _mm_unpacklo_epi64(t0, t0)); \
D1 = _mm_unpackhi_epi64(t0, _mm_unpacklo_epi64(D1, D1)); \
B0 = _mm_unpackhi_epi64(B0, _mm_unpacklo_epi64(B1, B1)); \
B1 = _mm_unpackhi_epi64(B1, _mm_unpacklo_epi64(t1, t1)); \
} while ((void)0, 0)
#define UNDIAGONALIZE(A0, B0, C0, D0, A1, B1, C1, D1) \
do { \
__m128i t0, t1; \
t0 = C0; \
C0 = C1; \
C1 = t0; \
t0 = B0; \
t1 = D0; \
B0 = _mm_unpackhi_epi64(B1, _mm_unpacklo_epi64(B0, B0)); \
B1 = _mm_unpackhi_epi64(t0, _mm_unpacklo_epi64(B1, B1)); \
D0 = _mm_unpackhi_epi64(D0, _mm_unpacklo_epi64(D1, D1)); \
D1 = _mm_unpackhi_epi64(D1, _mm_unpacklo_epi64(t1, t1)); \
} while ((void)0, 0)
#endif
#define BLAKE2_ROUND(A0, A1, B0, B1, C0, C1, D0, D1) \
do { \
G1(A0, B0, C0, D0, A1, B1, C1, D1); \
G2(A0, B0, C0, D0, A1, B1, C1, D1); \
\
DIAGONALIZE(A0, B0, C0, D0, A1, B1, C1, D1); \
\
G1(A0, B0, C0, D0, A1, B1, C1, D1); \
G2(A0, B0, C0, D0, A1, B1, C1, D1); \
\
UNDIAGONALIZE(A0, B0, C0, D0, A1, B1, C1, D1); \
} while ((void)0, 0)
#else /* __AVX2__ */
#include <immintrin.h>
#define rotr32(x) _mm256_shuffle_epi32(x, _MM_SHUFFLE(2, 3, 0, 1))
#define rotr24(x) _mm256_shuffle_epi8(x, _mm256_setr_epi8(3, 4, 5, 6, 7, 0, 1, 2, 11, 12, 13, 14, 15, 8, 9, 10, 3, 4, 5, 6, 7, 0, 1, 2, 11, 12, 13, 14, 15, 8, 9, 10))
#define rotr16(x) _mm256_shuffle_epi8(x, _mm256_setr_epi8(2, 3, 4, 5, 6, 7, 0, 1, 10, 11, 12, 13, 14, 15, 8, 9, 2, 3, 4, 5, 6, 7, 0, 1, 10, 11, 12, 13, 14, 15, 8, 9))
#define rotr63(x) _mm256_xor_si256(_mm256_srli_epi64((x), 63), _mm256_add_epi64((x), (x)))
#define G1_AVX2(A0, A1, B0, B1, C0, C1, D0, D1) \
do { \
__m256i ml = _mm256_mul_epu32(A0, B0); \
ml = _mm256_add_epi64(ml, ml); \
A0 = _mm256_add_epi64(A0, _mm256_add_epi64(B0, ml)); \
D0 = _mm256_xor_si256(D0, A0); \
D0 = rotr32(D0); \
\
ml = _mm256_mul_epu32(C0, D0); \
ml = _mm256_add_epi64(ml, ml); \
C0 = _mm256_add_epi64(C0, _mm256_add_epi64(D0, ml)); \
\
B0 = _mm256_xor_si256(B0, C0); \
B0 = rotr24(B0); \
\
ml = _mm256_mul_epu32(A1, B1); \
ml = _mm256_add_epi64(ml, ml); \
A1 = _mm256_add_epi64(A1, _mm256_add_epi64(B1, ml)); \
D1 = _mm256_xor_si256(D1, A1); \
D1 = rotr32(D1); \
\
ml = _mm256_mul_epu32(C1, D1); \
ml = _mm256_add_epi64(ml, ml); \
C1 = _mm256_add_epi64(C1, _mm256_add_epi64(D1, ml)); \
\
B1 = _mm256_xor_si256(B1, C1); \
B1 = rotr24(B1); \
} while((void)0, 0);
#define G2_AVX2(A0, A1, B0, B1, C0, C1, D0, D1) \
do { \
__m256i ml = _mm256_mul_epu32(A0, B0); \
ml = _mm256_add_epi64(ml, ml); \
A0 = _mm256_add_epi64(A0, _mm256_add_epi64(B0, ml)); \
D0 = _mm256_xor_si256(D0, A0); \
D0 = rotr16(D0); \
\
ml = _mm256_mul_epu32(C0, D0); \
ml = _mm256_add_epi64(ml, ml); \
C0 = _mm256_add_epi64(C0, _mm256_add_epi64(D0, ml)); \
B0 = _mm256_xor_si256(B0, C0); \
B0 = rotr63(B0); \
\
ml = _mm256_mul_epu32(A1, B1); \
ml = _mm256_add_epi64(ml, ml); \
A1 = _mm256_add_epi64(A1, _mm256_add_epi64(B1, ml)); \
D1 = _mm256_xor_si256(D1, A1); \
D1 = rotr16(D1); \
\
ml = _mm256_mul_epu32(C1, D1); \
ml = _mm256_add_epi64(ml, ml); \
C1 = _mm256_add_epi64(C1, _mm256_add_epi64(D1, ml)); \
B1 = _mm256_xor_si256(B1, C1); \
B1 = rotr63(B1); \
} while((void)0, 0);
#define DIAGONALIZE_1(A0, B0, C0, D0, A1, B1, C1, D1) \
do { \
B0 = _mm256_permute4x64_epi64(B0, _MM_SHUFFLE(0, 3, 2, 1)); \
C0 = _mm256_permute4x64_epi64(C0, _MM_SHUFFLE(1, 0, 3, 2)); \
D0 = _mm256_permute4x64_epi64(D0, _MM_SHUFFLE(2, 1, 0, 3)); \
\
B1 = _mm256_permute4x64_epi64(B1, _MM_SHUFFLE(0, 3, 2, 1)); \
C1 = _mm256_permute4x64_epi64(C1, _MM_SHUFFLE(1, 0, 3, 2)); \
D1 = _mm256_permute4x64_epi64(D1, _MM_SHUFFLE(2, 1, 0, 3)); \
} while((void)0, 0);
#define DIAGONALIZE_2(A0, A1, B0, B1, C0, C1, D0, D1) \
do { \
__m256i tmp1 = _mm256_blend_epi32(B0, B1, 0xCC); \
__m256i tmp2 = _mm256_blend_epi32(B0, B1, 0x33); \
B1 = _mm256_permute4x64_epi64(tmp1, _MM_SHUFFLE(2,3,0,1)); \
B0 = _mm256_permute4x64_epi64(tmp2, _MM_SHUFFLE(2,3,0,1)); \
\
tmp1 = C0; \
C0 = C1; \
C1 = tmp1; \
\
tmp1 = _mm256_blend_epi32(D0, D1, 0xCC); \
tmp2 = _mm256_blend_epi32(D0, D1, 0x33); \
D0 = _mm256_permute4x64_epi64(tmp1, _MM_SHUFFLE(2,3,0,1)); \
D1 = _mm256_permute4x64_epi64(tmp2, _MM_SHUFFLE(2,3,0,1)); \
} while(0);
#define UNDIAGONALIZE_1(A0, B0, C0, D0, A1, B1, C1, D1) \
do { \
B0 = _mm256_permute4x64_epi64(B0, _MM_SHUFFLE(2, 1, 0, 3)); \
C0 = _mm256_permute4x64_epi64(C0, _MM_SHUFFLE(1, 0, 3, 2)); \
D0 = _mm256_permute4x64_epi64(D0, _MM_SHUFFLE(0, 3, 2, 1)); \
\
B1 = _mm256_permute4x64_epi64(B1, _MM_SHUFFLE(2, 1, 0, 3)); \
C1 = _mm256_permute4x64_epi64(C1, _MM_SHUFFLE(1, 0, 3, 2)); \
D1 = _mm256_permute4x64_epi64(D1, _MM_SHUFFLE(0, 3, 2, 1)); \
} while((void)0, 0);
#define UNDIAGONALIZE_2(A0, A1, B0, B1, C0, C1, D0, D1) \
do { \
__m256i tmp1 = _mm256_blend_epi32(B0, B1, 0xCC); \
__m256i tmp2 = _mm256_blend_epi32(B0, B1, 0x33); \
B0 = _mm256_permute4x64_epi64(tmp1, _MM_SHUFFLE(2,3,0,1)); \
B1 = _mm256_permute4x64_epi64(tmp2, _MM_SHUFFLE(2,3,0,1)); \
\
tmp1 = C0; \
C0 = C1; \
C1 = tmp1; \
\
tmp1 = _mm256_blend_epi32(D0, D1, 0x33); \
tmp2 = _mm256_blend_epi32(D0, D1, 0xCC); \
D0 = _mm256_permute4x64_epi64(tmp1, _MM_SHUFFLE(2,3,0,1)); \
D1 = _mm256_permute4x64_epi64(tmp2, _MM_SHUFFLE(2,3,0,1)); \
} while((void)0, 0);
#define BLAKE2_ROUND_1(A0, A1, B0, B1, C0, C1, D0, D1) \
do{ \
G1_AVX2(A0, A1, B0, B1, C0, C1, D0, D1) \
G2_AVX2(A0, A1, B0, B1, C0, C1, D0, D1) \
\
DIAGONALIZE_1(A0, B0, C0, D0, A1, B1, C1, D1) \
\
G1_AVX2(A0, A1, B0, B1, C0, C1, D0, D1) \
G2_AVX2(A0, A1, B0, B1, C0, C1, D0, D1) \
\
UNDIAGONALIZE_1(A0, B0, C0, D0, A1, B1, C1, D1) \
} while((void)0, 0);
#define BLAKE2_ROUND_2(A0, A1, B0, B1, C0, C1, D0, D1) \
do{ \
G1_AVX2(A0, A1, B0, B1, C0, C1, D0, D1) \
G2_AVX2(A0, A1, B0, B1, C0, C1, D0, D1) \
\
DIAGONALIZE_2(A0, A1, B0, B1, C0, C1, D0, D1) \
\
G1_AVX2(A0, A1, B0, B1, C0, C1, D0, D1) \
G2_AVX2(A0, A1, B0, B1, C0, C1, D0, D1) \
\
UNDIAGONALIZE_2(A0, A1, B0, B1, C0, C1, D0, D1) \
} while((void)0, 0);
#endif /* __AVX2__ */
#else /* __AVX512F__ */
#include <immintrin.h>
#define ror64(x, n) _mm512_ror_epi64((x), (n))
static __m512i muladd(__m512i x, __m512i y)
{
__m512i z = _mm512_mul_epu32(x, y);
return _mm512_add_epi64(_mm512_add_epi64(x, y), _mm512_add_epi64(z, z));
}
#define G1(A0, B0, C0, D0, A1, B1, C1, D1) \
do { \
A0 = muladd(A0, B0); \
A1 = muladd(A1, B1); \
\
D0 = _mm512_xor_si512(D0, A0); \
D1 = _mm512_xor_si512(D1, A1); \
\
D0 = ror64(D0, 32); \
D1 = ror64(D1, 32); \
\
C0 = muladd(C0, D0); \
C1 = muladd(C1, D1); \
\
B0 = _mm512_xor_si512(B0, C0); \
B1 = _mm512_xor_si512(B1, C1); \
\
B0 = ror64(B0, 24); \
B1 = ror64(B1, 24); \
} while ((void)0, 0)
#define G2(A0, B0, C0, D0, A1, B1, C1, D1) \
do { \
A0 = muladd(A0, B0); \
A1 = muladd(A1, B1); \
\
D0 = _mm512_xor_si512(D0, A0); \
D1 = _mm512_xor_si512(D1, A1); \
\
D0 = ror64(D0, 16); \
D1 = ror64(D1, 16); \
\
C0 = muladd(C0, D0); \
C1 = muladd(C1, D1); \
\
B0 = _mm512_xor_si512(B0, C0); \
B1 = _mm512_xor_si512(B1, C1); \
\
B0 = ror64(B0, 63); \
B1 = ror64(B1, 63); \
} while ((void)0, 0)
#define DIAGONALIZE(A0, B0, C0, D0, A1, B1, C1, D1) \
do { \
B0 = _mm512_permutex_epi64(B0, _MM_SHUFFLE(0, 3, 2, 1)); \
B1 = _mm512_permutex_epi64(B1, _MM_SHUFFLE(0, 3, 2, 1)); \
\
C0 = _mm512_permutex_epi64(C0, _MM_SHUFFLE(1, 0, 3, 2)); \
C1 = _mm512_permutex_epi64(C1, _MM_SHUFFLE(1, 0, 3, 2)); \
\
D0 = _mm512_permutex_epi64(D0, _MM_SHUFFLE(2, 1, 0, 3)); \
D1 = _mm512_permutex_epi64(D1, _MM_SHUFFLE(2, 1, 0, 3)); \
} while ((void)0, 0)
#define UNDIAGONALIZE(A0, B0, C0, D0, A1, B1, C1, D1) \
do { \
B0 = _mm512_permutex_epi64(B0, _MM_SHUFFLE(2, 1, 0, 3)); \
B1 = _mm512_permutex_epi64(B1, _MM_SHUFFLE(2, 1, 0, 3)); \
\
C0 = _mm512_permutex_epi64(C0, _MM_SHUFFLE(1, 0, 3, 2)); \
C1 = _mm512_permutex_epi64(C1, _MM_SHUFFLE(1, 0, 3, 2)); \
\
D0 = _mm512_permutex_epi64(D0, _MM_SHUFFLE(0, 3, 2, 1)); \
D1 = _mm512_permutex_epi64(D1, _MM_SHUFFLE(0, 3, 2, 1)); \
} while ((void)0, 0)
#define BLAKE2_ROUND(A0, B0, C0, D0, A1, B1, C1, D1) \
do { \
G1(A0, B0, C0, D0, A1, B1, C1, D1); \
G2(A0, B0, C0, D0, A1, B1, C1, D1); \
\
DIAGONALIZE(A0, B0, C0, D0, A1, B1, C1, D1); \
\
G1(A0, B0, C0, D0, A1, B1, C1, D1); \
G2(A0, B0, C0, D0, A1, B1, C1, D1); \
\
UNDIAGONALIZE(A0, B0, C0, D0, A1, B1, C1, D1); \
} while ((void)0, 0)
#define SWAP_HALVES(A0, A1) \
do { \
__m512i t0, t1; \
t0 = _mm512_shuffle_i64x2(A0, A1, _MM_SHUFFLE(1, 0, 1, 0)); \
t1 = _mm512_shuffle_i64x2(A0, A1, _MM_SHUFFLE(3, 2, 3, 2)); \
A0 = t0; \
A1 = t1; \
} while((void)0, 0)
#define SWAP_QUARTERS(A0, A1) \
do { \
SWAP_HALVES(A0, A1); \
A0 = _mm512_permutexvar_epi64(_mm512_setr_epi64(0, 1, 4, 5, 2, 3, 6, 7), A0); \
A1 = _mm512_permutexvar_epi64(_mm512_setr_epi64(0, 1, 4, 5, 2, 3, 6, 7), A1); \
} while((void)0, 0)
#define UNSWAP_QUARTERS(A0, A1) \
do { \
A0 = _mm512_permutexvar_epi64(_mm512_setr_epi64(0, 1, 4, 5, 2, 3, 6, 7), A0); \
A1 = _mm512_permutexvar_epi64(_mm512_setr_epi64(0, 1, 4, 5, 2, 3, 6, 7), A1); \
SWAP_HALVES(A0, A1); \
} while((void)0, 0)
#define BLAKE2_ROUND_1(A0, C0, B0, D0, A1, C1, B1, D1) \
do { \
SWAP_HALVES(A0, B0); \
SWAP_HALVES(C0, D0); \
SWAP_HALVES(A1, B1); \
SWAP_HALVES(C1, D1); \
BLAKE2_ROUND(A0, B0, C0, D0, A1, B1, C1, D1); \
SWAP_HALVES(A0, B0); \
SWAP_HALVES(C0, D0); \
SWAP_HALVES(A1, B1); \
SWAP_HALVES(C1, D1); \
} while ((void)0, 0)
#define BLAKE2_ROUND_2(A0, A1, B0, B1, C0, C1, D0, D1) \
do { \
SWAP_QUARTERS(A0, A1); \
SWAP_QUARTERS(B0, B1); \
SWAP_QUARTERS(C0, C1); \
SWAP_QUARTERS(D0, D1); \
BLAKE2_ROUND(A0, B0, C0, D0, A1, B1, C1, D1); \
UNSWAP_QUARTERS(A0, A1); \
UNSWAP_QUARTERS(B0, B1); \
UNSWAP_QUARTERS(C0, C1); \
UNSWAP_QUARTERS(D0, D1); \
} while ((void)0, 0)
#endif /* __AVX512F__ */
#endif /* BLAKE_ROUND_MKA_OPT_H */

56
rust/ares/src/urcrypt/argon2/src/blake2/blamka-round-ref.h
View File

@ -1,56 +0,0 @@
/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#ifndef BLAKE_ROUND_MKA_H
#define BLAKE_ROUND_MKA_H
#include "blake2.h"
#include "blake2-impl.h"
/* designed by the Lyra PHC team */
static BLAKE2_INLINE uint64_t fBlaMka(uint64_t x, uint64_t y) {
const uint64_t m = UINT64_C(0xFFFFFFFF);
const uint64_t xy = (x & m) * (y & m);
return x + y + 2 * xy;
}
#define G(a, b, c, d) \
do { \
a = fBlaMka(a, b); \
d = rotr64(d ^ a, 32); \
c = fBlaMka(c, d); \
b = rotr64(b ^ c, 24); \
a = fBlaMka(a, b); \
d = rotr64(d ^ a, 16); \
c = fBlaMka(c, d); \
b = rotr64(b ^ c, 63); \
} while ((void)0, 0)
#define BLAKE2_ROUND_NOMSG(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, \
v12, v13, v14, v15) \
do { \
G(v0, v4, v8, v12); \
G(v1, v5, v9, v13); \
G(v2, v6, v10, v14); \
G(v3, v7, v11, v15); \
G(v0, v5, v10, v15); \
G(v1, v6, v11, v12); \
G(v2, v7, v8, v13); \
G(v3, v4, v9, v14); \
} while ((void)0, 0)
#endif

670
rust/ares/src/urcrypt/argon2/src/core.c
View File

@ -1,670 +0,0 @@
/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
/*For memory wiping*/
#ifdef _MSC_VER
#include <windows.h>
#include <winbase.h> /* For SecureZeroMemory */
#endif
#if defined __STDC_LIB_EXT1__
#define __STDC_WANT_LIB_EXT1__ 1
#endif
#define VC_GE_2005(version) (version >= 1400)
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "core.h"
#include "thread.h"
#include "blake2/blake2.h"
#include "blake2/blake2-impl.h"
#ifdef GENKAT
#include "genkat.h"
#endif
#if defined(__clang__)
#if __has_attribute(optnone)
#define NOT_OPTIMIZED __attribute__((optnone))
#endif
#elif defined(__GNUC__)
#define GCC_VERSION \
(__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
#if GCC_VERSION >= 40400
#define NOT_OPTIMIZED __attribute__((optimize("O0")))
#endif
#endif
#ifndef NOT_OPTIMIZED
#define NOT_OPTIMIZED
#endif
/***************Instance and Position constructors**********/
void init_block_value(block *b, uint8_t in) { memset(b->v, in, sizeof(b->v)); }
void copy_block(block *dst, const block *src) {
memcpy(dst->v, src->v, sizeof(uint64_t) * ARGON2_QWORDS_IN_BLOCK);
}
void xor_block(block *dst, const block *src) {
int i;
for (i = 0; i < ARGON2_QWORDS_IN_BLOCK; ++i) {
dst->v[i] ^= src->v[i];
}
}
static void load_block(block *dst, const void *input) {
unsigned i;
for (i = 0; i < ARGON2_QWORDS_IN_BLOCK; ++i) {
dst->v[i] = load64((const uint8_t *)input + i * sizeof(dst->v[i]));
}
}
static void store_block(void *output, const block *src) {
unsigned i;
for (i = 0; i < ARGON2_QWORDS_IN_BLOCK; ++i) {
store64((uint8_t *)output + i * sizeof(src->v[i]), src->v[i]);
}
}
/***************Memory functions*****************/
int allocate_memory(const argon2_context *context, uint8_t **memory,
size_t num, size_t size) {
size_t memory_size = num*size;
if (memory == NULL) {
return ARGON2_MEMORY_ALLOCATION_ERROR;
}
/* 1. Check for multiplication overflow */
if (size != 0 && memory_size / size != num) {
return ARGON2_MEMORY_ALLOCATION_ERROR;
}
/* 2. Try to allocate with appropriate allocator */
#ifdef ARGON2_JS
*memory = malloc(memory_size);
#else
if (context->allocate_cbk) {
(context->allocate_cbk)(memory, memory_size);
} else {
*memory = malloc(memory_size);
}
#endif
if (*memory == NULL) {
return ARGON2_MEMORY_ALLOCATION_ERROR;
}
return ARGON2_OK;
}
void free_memory(const argon2_context *context, uint8_t *memory,
size_t num, size_t size) {
size_t memory_size = num*size;
clear_internal_memory(memory, memory_size);
#ifdef ARGON2_JS
free(memory);
#else
if (context->free_cbk) {
(context->free_cbk)(memory, memory_size);
} else {
free(memory);
}
#endif
}
void NOT_OPTIMIZED secure_wipe_memory(void *v, size_t n) {
#if defined(_MSC_VER) && VC_GE_2005(_MSC_VER)
SecureZeroMemory(v, n);
#elif defined memset_s
memset_s(v, n, 0, n);
#elif defined(__OpenBSD__)
explicit_bzero(v, n);
#elif defined(ARGON2_JS)
memset(v, 0, n);
#else
static void *(*const volatile memset_sec)(void *, int, size_t) = &memset;
memset_sec(v, 0, n);
#endif
}
/* Memory clear flag defaults to true. */
int FLAG_clear_internal_memory = 1;
void clear_internal_memory(void *v, size_t n) {
if (FLAG_clear_internal_memory && v) {
secure_wipe_memory(v, n);
}
}
void finalize(const argon2_context *context, argon2_instance_t *instance) {
if (context != NULL && instance != NULL) {
block blockhash;
uint32_t l;
copy_block(&blockhash, instance->memory + instance->lane_length - 1);
/* XOR the last blocks */
for (l = 1; l < instance->lanes; ++l) {
uint32_t last_block_in_lane =
l * instance->lane_length + (instance->lane_length - 1);
xor_block(&blockhash, instance->memory + last_block_in_lane);
}
/* Hash the result */
{
uint8_t blockhash_bytes[ARGON2_BLOCK_SIZE];
store_block(blockhash_bytes, &blockhash);
blake2b_long(context->out, context->outlen, blockhash_bytes,
ARGON2_BLOCK_SIZE);
/* clear blockhash and blockhash_bytes */
clear_internal_memory(blockhash.v, ARGON2_BLOCK_SIZE);
clear_internal_memory(blockhash_bytes, ARGON2_BLOCK_SIZE);
}
#ifdef GENKAT
print_tag(context->out, context->outlen);
#endif
free_memory(context, (uint8_t *)instance->memory,
instance->memory_blocks, sizeof(block));
}
}
uint32_t index_alpha(const argon2_instance_t *instance,
const argon2_position_t *position, uint32_t pseudo_rand,
int same_lane) {
/*
* Pass 0:
* This lane : all already finished segments plus already constructed
* blocks in this segment
* Other lanes : all already finished segments
* Pass 1+:
* This lane : (SYNC_POINTS - 1) last segments plus already constructed
* blocks in this segment
* Other lanes : (SYNC_POINTS - 1) last segments
*/
uint32_t reference_area_size;
uint64_t relative_position;
uint32_t start_position, absolute_position;
if (0 == position->pass) {
/* First pass */
if (0 == position->slice) {
/* First slice */
reference_area_size =
position->index - 1; /* all but the previous */
} else {
if (same_lane) {
/* The same lane => add current segment */
reference_area_size =
position->slice * instance->segment_length +
position->index - 1;
} else {
reference_area_size =
position->slice * instance->segment_length +
((position->index == 0) ? (-1) : 0);
}
}
} else {
/* Second pass */
if (same_lane) {
reference_area_size = instance->lane_length -
instance->segment_length + position->index -
1;
} else {
reference_area_size = instance->lane_length -
instance->segment_length +
((position->index == 0) ? (-1) : 0);
}
}
/* 1.2.4. Mapping pseudo_rand to 0..<reference_area_size-1> and produce
* relative position */
relative_position = pseudo_rand;
relative_position = relative_position * relative_position >> 32;
relative_position = reference_area_size - 1 -
(reference_area_size * relative_position >> 32);
/* 1.2.5 Computing starting position */
start_position = 0;
if (0 != position->pass) {
start_position = (position->slice == ARGON2_SYNC_POINTS - 1)
? 0
: (position->slice + 1) * instance->segment_length;
}
/* 1.2.6. Computing absolute position */
absolute_position = (start_position + relative_position) %
instance->lane_length; /* absolute position */
return absolute_position;
}
/* Single-threaded version for p=1 case */
static int fill_memory_blocks_st(argon2_instance_t *instance) {
uint32_t r, s, l;
for (r = 0; r < instance->passes; ++r) {
for (s = 0; s < ARGON2_SYNC_POINTS; ++s) {
for (l = 0; l < instance->lanes; ++l) {
argon2_position_t position = {r, l, (uint8_t)s, 0};
fill_segment(instance, position);
}
}
#ifdef GENKAT
internal_kat(instance, r); /* Print all memory blocks */
#endif
}
return ARGON2_OK;
}
#if !defined(ARGON2_NO_THREADS)
#ifdef _WIN32
static unsigned __stdcall fill_segment_thr(void *thread_data)
#else
static void *fill_segment_thr(void *thread_data)
#endif
{
argon2_thread_data *my_data = thread_data;
fill_segment(my_data->instance_ptr, my_data->pos);
argon2_thread_exit();
return 0;
}
/* Multi-threaded version for p > 1 case */
static int fill_memory_blocks_mt(argon2_instance_t *instance) {
uint32_t r, s;
argon2_thread_handle_t *thread = NULL;
argon2_thread_data *thr_data = NULL;
int rc = ARGON2_OK;
allocate_fptr alc = instance->context_ptr->allocate_cbk;
deallocate_fptr dlc = instance->context_ptr->free_cbk;
uint32_t las = instance->lanes * sizeof(argon2_thread_handle_t);
/* 1. Allocating space for threads */
if (alc != NULL) {
alc((uint8_t **)&thread, las);
memset(thread, 0, las);
} else {
thread = calloc(instance->lanes, sizeof(argon2_thread_handle_t));
}
if (thread == NULL) {
rc = ARGON2_MEMORY_ALLOCATION_ERROR;
goto fail;
}
if (alc != NULL) {
alc((uint8_t **)&thr_data, las);
memset(thr_data, 0, las);
} else {
thr_data = calloc(instance->lanes, sizeof(argon2_thread_handle_t));
}
if (thr_data == NULL) {
rc = ARGON2_MEMORY_ALLOCATION_ERROR;
goto fail;
}
for (r = 0; r < instance->passes; ++r) {
for (s = 0; s < ARGON2_SYNC_POINTS; ++s) {
uint32_t l;
/* 2. Calling threads */
for (l = 0; l < instance->lanes; ++l) {
argon2_position_t position;
/* 2.1 Join a thread if limit is exceeded */
if (l >= instance->threads) {
if (argon2_thread_join(thread[l - instance->threads])) {
rc = ARGON2_THREAD_FAIL;
goto fail;
}
}
/* 2.2 Create thread */
position.pass = r;
position.lane = l;
position.slice = (uint8_t)s;
position.index = 0;
thr_data[l].instance_ptr =
instance; /* preparing the thread input */
memcpy(&(thr_data[l].pos), &position,
sizeof(argon2_position_t));
#ifdef EMSCRIPTEN
fill_segment(instance, position);
#else
if (argon2_thread_create(&thread[l], &fill_segment_thr,
(void *)&thr_data[l])) {
rc = ARGON2_THREAD_FAIL;
goto fail;
}
/* fill_segment(instance, position); */
/*Non-thread equivalent of the lines above */
#endif
}
/* 3. Joining remaining threads */
for (l = instance->lanes - instance->threads; l < instance->lanes;
++l) {
if (argon2_thread_join(thread[l])) {
rc = ARGON2_THREAD_FAIL;
goto fail;
}
}
}
#ifdef GENKAT
internal_kat(instance, r); /* Print all memory blocks */
#endif
}
fail:
if (thread != NULL) {
if (dlc != NULL) {
dlc((uint8_t *)thread, las);
} else {
free(thread);
}
}
if (thr_data != NULL) {
if (dlc != NULL) {
dlc((uint8_t *)thr_data, las);
} else {
free(thr_data);
}
}
return rc;
}
#endif /* ARGON2_NO_THREADS */
int fill_memory_blocks(argon2_instance_t *instance) {
if (instance == NULL || instance->lanes == 0) {
return ARGON2_INCORRECT_PARAMETER;
}
#if defined(ARGON2_NO_THREADS)
return fill_memory_blocks_st(instance);
#else
return instance->threads == 1 ?
fill_memory_blocks_st(instance) : fill_memory_blocks_mt(instance);
#endif
}
int validate_inputs(const argon2_context *context) {
if (NULL == context) {
return ARGON2_INCORRECT_PARAMETER;
}
if (NULL == context->out) {
return ARGON2_OUTPUT_PTR_NULL;
}
/* Validate output length */
if (ARGON2_MIN_OUTLEN > context->outlen) {
return ARGON2_OUTPUT_TOO_SHORT;
}
if (ARGON2_MAX_OUTLEN < context->outlen) {
return ARGON2_OUTPUT_TOO_LONG;
}
/* Validate password (required param) */
if (NULL == context->pwd) {
if (0 != context->pwdlen) {
return ARGON2_PWD_PTR_MISMATCH;
}
}
if (ARGON2_MIN_PWD_LENGTH > context->pwdlen) {
return ARGON2_PWD_TOO_SHORT;
}
if (ARGON2_MAX_PWD_LENGTH < context->pwdlen) {
return ARGON2_PWD_TOO_LONG;
}
/* Validate salt (required param) */
if (NULL == context->salt) {
if (0 != context->saltlen) {
return ARGON2_SALT_PTR_MISMATCH;
}
}
if (ARGON2_MIN_SALT_LENGTH > context->saltlen) {
return ARGON2_SALT_TOO_SHORT;
}
if (ARGON2_MAX_SALT_LENGTH < context->saltlen) {
return ARGON2_SALT_TOO_LONG;
}
/* Validate secret (optional param) */
if (NULL == context->secret) {
if (0 != context->secretlen) {
return ARGON2_SECRET_PTR_MISMATCH;
}
} else {
if (ARGON2_MIN_SECRET > context->secretlen) {
return ARGON2_SECRET_TOO_SHORT;
}
if (ARGON2_MAX_SECRET < context->secretlen) {
return ARGON2_SECRET_TOO_LONG;
}
}
/* Validate associated data (optional param) */
if (NULL == context->ad) {
if (0 != context->adlen) {
return ARGON2_AD_PTR_MISMATCH;
}
} else {
if (ARGON2_MIN_AD_LENGTH > context->adlen) {
return ARGON2_AD_TOO_SHORT;
}
if (ARGON2_MAX_AD_LENGTH < context->adlen) {
return ARGON2_AD_TOO_LONG;
}
}
/* Validate memory cost */
if (ARGON2_MIN_MEMORY > context->m_cost) {
return ARGON2_MEMORY_TOO_LITTLE;
}
if (ARGON2_MAX_MEMORY < context->m_cost) {
return ARGON2_MEMORY_TOO_MUCH;
}
if (context->m_cost < 8 * context->lanes) {
return ARGON2_MEMORY_TOO_LITTLE;
}
/* Validate time cost */
if (ARGON2_MIN_TIME > context->t_cost) {
return ARGON2_TIME_TOO_SMALL;
}
if (ARGON2_MAX_TIME < context->t_cost) {
return ARGON2_TIME_TOO_LARGE;
}
/* Validate lanes */
if (ARGON2_MIN_LANES > context->lanes) {
return ARGON2_LANES_TOO_FEW;
}
if (ARGON2_MAX_LANES < context->lanes) {
return ARGON2_LANES_TOO_MANY;
}
/* Validate threads */
if (ARGON2_MIN_THREADS > context->threads) {
return ARGON2_THREADS_TOO_FEW;
}
if (ARGON2_MAX_THREADS < context->threads) {
return ARGON2_THREADS_TOO_MANY;
}
if (NULL != context->allocate_cbk && NULL == context->free_cbk) {
return ARGON2_FREE_MEMORY_CBK_NULL;
}
if (NULL == context->allocate_cbk && NULL != context->free_cbk) {
return ARGON2_ALLOCATE_MEMORY_CBK_NULL;
}
return ARGON2_OK;
}
void fill_first_blocks(uint8_t *blockhash, const argon2_instance_t *instance) {
uint32_t l;
/* Make the first and second block in each lane as G(H0||0||i) or
G(H0||1||i) */
uint8_t blockhash_bytes[ARGON2_BLOCK_SIZE];
for (l = 0; l < instance->lanes; ++l) {
store32(blockhash + ARGON2_PREHASH_DIGEST_LENGTH, 0);
store32(blockhash + ARGON2_PREHASH_DIGEST_LENGTH + 4, l);
blake2b_long(blockhash_bytes, ARGON2_BLOCK_SIZE, blockhash,
ARGON2_PREHASH_SEED_LENGTH);
load_block(&instance->memory[l * instance->lane_length + 0],
blockhash_bytes);
store32(blockhash + ARGON2_PREHASH_DIGEST_LENGTH, 1);
blake2b_long(blockhash_bytes, ARGON2_BLOCK_SIZE, blockhash,
ARGON2_PREHASH_SEED_LENGTH);
load_block(&instance->memory[l * instance->lane_length + 1],
blockhash_bytes);
}
clear_internal_memory(blockhash_bytes, ARGON2_BLOCK_SIZE);
}
void initial_hash(uint8_t *blockhash, argon2_context *context,
argon2_type type) {
blake2b_state BlakeHash;
uint8_t value[sizeof(uint32_t)];
if (NULL == context || NULL == blockhash) {
return;
}
blake2b_init(&BlakeHash, ARGON2_PREHASH_DIGEST_LENGTH);
store32(&value, context->lanes);
blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
store32(&value, context->outlen);
blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
store32(&value, context->m_cost);
blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
store32(&value, context->t_cost);
blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
store32(&value, context->version);
blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
store32(&value, (uint32_t)type);
blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
store32(&value, context->pwdlen);
blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
if (context->pwd != NULL) {
blake2b_update(&BlakeHash, (const uint8_t *)context->pwd,
context->pwdlen);
if (context->flags & ARGON2_FLAG_CLEAR_PASSWORD) {
secure_wipe_memory(context->pwd, context->pwdlen);
context->pwdlen = 0;
}
}
store32(&value, context->saltlen);
blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
if (context->salt != NULL) {
blake2b_update(&BlakeHash, (const uint8_t *)context->salt,
context->saltlen);
}
store32(&value, context->secretlen);
blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
if (context->secret != NULL) {
blake2b_update(&BlakeHash, (const uint8_t *)context->secret,
context->secretlen);
if (context->flags & ARGON2_FLAG_CLEAR_SECRET) {
secure_wipe_memory(context->secret, context->secretlen);
context->secretlen = 0;
}
}
store32(&value, context->adlen);
blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
if (context->ad != NULL) {
blake2b_update(&BlakeHash, (const uint8_t *)context->ad,
context->adlen);
}
blake2b_final(&BlakeHash, blockhash, ARGON2_PREHASH_DIGEST_LENGTH);
}
int initialize(argon2_instance_t *instance, argon2_context *context) {
uint8_t blockhash[ARGON2_PREHASH_SEED_LENGTH];
int result = ARGON2_OK;
if (instance == NULL || context == NULL)
return ARGON2_INCORRECT_PARAMETER;
instance->context_ptr = context;
/* 1. Memory allocation */
result = allocate_memory(context, (uint8_t **)&(instance->memory),
instance->memory_blocks, sizeof(block));
if (result != ARGON2_OK) {
return result;
}
/* 2. Initial hashing */
/* H_0 + 8 extra bytes to produce the first blocks */
/* uint8_t blockhash[ARGON2_PREHASH_SEED_LENGTH]; */
/* Hashing all inputs */
initial_hash(blockhash, context, instance->type);
/* Zeroing 8 extra bytes */
clear_internal_memory(blockhash + ARGON2_PREHASH_DIGEST_LENGTH,
ARGON2_PREHASH_SEED_LENGTH -
ARGON2_PREHASH_DIGEST_LENGTH);
#ifdef GENKAT
initial_kat(blockhash, context, instance->type);
#endif
/* 3. Creating first blocks, we always have at least two blocks in a slice
*/
fill_first_blocks(blockhash, instance);
/* Clearing the hash */
clear_internal_memory(blockhash, ARGON2_PREHASH_SEED_LENGTH);
return ARGON2_OK;
}

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/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#ifndef ARGON2_CORE_H
#define ARGON2_CORE_H
#include "argon2.h"
#define CONST_CAST(x) (x)(uintptr_t)
/**********************Argon2 internal constants*******************************/
enum argon2_core_constants {
/* Memory block size in bytes */
ARGON2_BLOCK_SIZE = 1024,
ARGON2_QWORDS_IN_BLOCK = ARGON2_BLOCK_SIZE / 8,
ARGON2_OWORDS_IN_BLOCK = ARGON2_BLOCK_SIZE / 16,
ARGON2_HWORDS_IN_BLOCK = ARGON2_BLOCK_SIZE / 32,
ARGON2_512BIT_WORDS_IN_BLOCK = ARGON2_BLOCK_SIZE / 64,
/* Number of pseudo-random values generated by one call to Blake in Argon2i
to
generate reference block positions */
ARGON2_ADDRESSES_IN_BLOCK = 128,
/* Pre-hashing digest length and its extension*/
ARGON2_PREHASH_DIGEST_LENGTH = 64,
ARGON2_PREHASH_SEED_LENGTH = 72
};
/*************************Argon2 internal data types***********************/
/*
* Structure for the (1KB) memory block implemented as 128 64-bit words.
* Memory blocks can be copied, XORed. Internal words can be accessed by [] (no
* bounds checking).
*/
typedef struct block_ { uint64_t v[ARGON2_QWORDS_IN_BLOCK]; } block;
/*****************Functions that work with the block******************/
/* Initialize each byte of the block with @in */
void init_block_value(block *b, uint8_t in);
/* Copy block @src to block @dst */
void copy_block(block *dst, const block *src);
/* XOR @src onto @dst bytewise */
void xor_block(block *dst, const block *src);
/*
* Argon2 instance: memory pointer, number of passes, amount of memory, type,
* and derived values.
* Used to evaluate the number and location of blocks to construct in each
* thread
*/
typedef struct Argon2_instance_t {
block *memory; /* Memory pointer */
uint32_t version;
uint32_t passes; /* Number of passes */
uint32_t memory_blocks; /* Number of blocks in memory */
uint32_t segment_length;
uint32_t lane_length;
uint32_t lanes;
uint32_t threads;
argon2_type type;
int print_internals; /* whether to print the memory blocks */
argon2_context *context_ptr; /* points back to original context */
} argon2_instance_t;
/*
* Argon2 position: where we construct the block right now. Used to distribute
* work between threads.
*/
typedef struct Argon2_position_t {
uint32_t pass;
uint32_t lane;
uint8_t slice;
uint32_t index;
} argon2_position_t;
/*Struct that holds the inputs for thread handling FillSegment*/
typedef struct Argon2_thread_data {
argon2_instance_t *instance_ptr;
argon2_position_t pos;
} argon2_thread_data;
/*************************Argon2 core functions********************************/
/* Allocates memory to the given pointer, uses the appropriate allocator as
* specified in the context. Total allocated memory is num*size.
* @param context argon2_context which specifies the allocator
* @param memory pointer to the pointer to the memory
* @param size the size in bytes for each element to be allocated
* @param num the number of elements to be allocated
* @return ARGON2_OK if @memory is a valid pointer and memory is allocated
*/
int allocate_memory(const argon2_context *context, uint8_t **memory,
size_t num, size_t size);
/*
* Frees memory at the given pointer, uses the appropriate deallocator as
* specified in the context. Also cleans the memory using clear_internal_memory.
* @param context argon2_context which specifies the deallocator
* @param memory pointer to buffer to be freed
* @param size the size in bytes for each element to be deallocated
* @param num the number of elements to be deallocated
*/
void free_memory(const argon2_context *context, uint8_t *memory,
size_t num, size_t size);
/* Function that securely cleans the memory. This ignores any flags set
* regarding clearing memory. Usually one just calls clear_internal_memory.
* @param mem Pointer to the memory
* @param s Memory size in bytes
*/
void secure_wipe_memory(void *v, size_t n);
/* Function that securely clears the memory if FLAG_clear_internal_memory is
* set. If the flag isn't set, this function does nothing.
* @param mem Pointer to the memory
* @param s Memory size in bytes
*/
void clear_internal_memory(void *v, size_t n);
/*
* Computes absolute position of reference block in the lane following a skewed
* distribution and using a pseudo-random value as input
* @param instance Pointer to the current instance
* @param position Pointer to the current position
* @param pseudo_rand 32-bit pseudo-random value used to determine the position
* @param same_lane Indicates if the block will be taken from the current lane.
* If so we can reference the current segment
* @pre All pointers must be valid
*/
uint32_t index_alpha(const argon2_instance_t *instance,
const argon2_position_t *position, uint32_t pseudo_rand,
int same_lane);
/*
* Function that validates all inputs against predefined restrictions and return
* an error code
* @param context Pointer to current Argon2 context
* @return ARGON2_OK if everything is all right, otherwise one of error codes
* (all defined in <argon2.h>
*/
int validate_inputs(const argon2_context *context);
/*
* Hashes all the inputs into @a blockhash[PREHASH_DIGEST_LENGTH], clears
* password and secret if needed
* @param context Pointer to the Argon2 internal structure containing memory
* pointer, and parameters for time and space requirements.
* @param blockhash Buffer for pre-hashing digest
* @param type Argon2 type
* @pre @a blockhash must have at least @a PREHASH_DIGEST_LENGTH bytes
* allocated
*/
void initial_hash(uint8_t *blockhash, argon2_context *context,
argon2_type type);
/*
* Function creates first 2 blocks per lane
* @param instance Pointer to the current instance
* @param blockhash Pointer to the pre-hashing digest
* @pre blockhash must point to @a PREHASH_SEED_LENGTH allocated values
*/
void fill_first_blocks(uint8_t *blockhash, const argon2_instance_t *instance);
/*
* Function allocates memory, hashes the inputs with Blake, and creates first
* two blocks. Returns the pointer to the main memory with 2 blocks per lane
* initialized
* @param context Pointer to the Argon2 internal structure containing memory
* pointer, and parameters for time and space requirements.
* @param instance Current Argon2 instance
* @return Zero if successful, -1 if memory failed to allocate. @context->state
* will be modified if successful.
*/
int initialize(argon2_instance_t *instance, argon2_context *context);
/*
* XORing the last block of each lane, hashing it, making the tag. Deallocates
* the memory.
* @param context Pointer to current Argon2 context (use only the out parameters
* from it)
* @param instance Pointer to current instance of Argon2
* @pre instance->state must point to necessary amount of memory
* @pre context->out must point to outlen bytes of memory
* @pre if context->free_cbk is not NULL, it should point to a function that
* deallocates memory
*/
void finalize(const argon2_context *context, argon2_instance_t *instance);
/*
* Function that fills the segment using previous segments also from other
* threads
* @param context current context
* @param instance Pointer to the current instance
* @param position Current position
* @pre all block pointers must be valid
*/
void fill_segment(const argon2_instance_t *instance,
argon2_position_t position);
/*
* Function that fills the entire memory t_cost times based on the first two
* blocks in each lane
* @param instance Pointer to the current instance
* @return ARGON2_OK if successful, @context->state
*/
int fill_memory_blocks(argon2_instance_t *instance);
#endif

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/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include "encoding.h"
#include "core.h"
/*
* Example code for a decoder and encoder of "hash strings", with Argon2
* parameters.
*
* This code comprises three sections:
*
* -- The first section contains generic Base64 encoding and decoding
* functions. It is conceptually applicable to any hash function
* implementation that uses Base64 to encode and decode parameters,
* salts and outputs. It could be made into a library, provided that
* the relevant functions are made public (non-static) and be given
* reasonable names to avoid collisions with other functions.
*
* -- The second section is specific to Argon2. It encodes and decodes
* the parameters, salts and outputs. It does not compute the hash
* itself.
*
* The code was originally written by Thomas Pornin <pornin@bolet.org>,
* to whom comments and remarks may be sent. It is released under what
* should amount to Public Domain or its closest equivalent; the
* following mantra is supposed to incarnate that fact with all the
* proper legal rituals:
*
* ---------------------------------------------------------------------
* This file is provided under the terms of Creative Commons CC0 1.0
* Public Domain Dedication. To the extent possible under law, the
* author (Thomas Pornin) has waived all copyright and related or
* neighboring rights to this file. This work is published from: Canada.
* ---------------------------------------------------------------------
*
* Copyright (c) 2015 Thomas Pornin
*/
/* ==================================================================== */
/*
* Common code; could be shared between different hash functions.
*
* Note: the Base64 functions below assume that uppercase letters (resp.
* lowercase letters) have consecutive numerical codes, that fit on 8
* bits. All modern systems use ASCII-compatible charsets, where these
* properties are true. If you are stuck with a dinosaur of a system
* that still defaults to EBCDIC then you already have much bigger
* interoperability issues to deal with.
*/
/*
* Some macros for constant-time comparisons. These work over values in
* the 0..255 range. Returned value is 0x00 on "false", 0xFF on "true".
*/
#define EQ(x, y) ((((0U - ((unsigned)(x) ^ (unsigned)(y))) >> 8) & 0xFF) ^ 0xFF)
#define GT(x, y) ((((unsigned)(y) - (unsigned)(x)) >> 8) & 0xFF)
#define GE(x, y) (GT(y, x) ^ 0xFF)
#define LT(x, y) GT(y, x)
#define LE(x, y) GE(y, x)
/*
* Convert value x (0..63) to corresponding Base64 character.
*/
static int b64_byte_to_char(unsigned x) {
return (LT(x, 26) & (x + 'A')) |
(GE(x, 26) & LT(x, 52) & (x + ('a' - 26))) |
(GE(x, 52) & LT(x, 62) & (x + ('0' - 52))) | (EQ(x, 62) & '+') |
(EQ(x, 63) & '/');
}
/*
* Convert character c to the corresponding 6-bit value. If character c
* is not a Base64 character, then 0xFF (255) is returned.
*/
static unsigned b64_char_to_byte(int c) {
unsigned x;
x = (GE(c, 'A') & LE(c, 'Z') & (c - 'A')) |
(GE(c, 'a') & LE(c, 'z') & (c - ('a' - 26))) |
(GE(c, '0') & LE(c, '9') & (c - ('0' - 52))) | (EQ(c, '+') & 62) |
(EQ(c, '/') & 63);
return x | (EQ(x, 0) & (EQ(c, 'A') ^ 0xFF));
}
/*
* Convert some bytes to Base64. 'dst_len' is the length (in characters)
* of the output buffer 'dst'; if that buffer is not large enough to
* receive the result (including the terminating 0), then (size_t)-1
* is returned. Otherwise, the zero-terminated Base64 string is written
* in the buffer, and the output length (counted WITHOUT the terminating
* zero) is returned.
*/
static size_t to_base64(char *dst, size_t dst_len, const void *src,
size_t src_len) {
size_t olen;
const unsigned char *buf;
unsigned acc, acc_len;
olen = (src_len / 3) << 2;
switch (src_len % 3) {
case 2:
olen++;
/* fall through */
case 1:
olen += 2;
break;
}
if (dst_len <= olen) {
return (size_t)-1;
}
acc = 0;
acc_len = 0;
buf = (const unsigned char *)src;
while (src_len-- > 0) {
acc = (acc << 8) + (*buf++);
acc_len += 8;
while (acc_len >= 6) {
acc_len -= 6;
*dst++ = (char)b64_byte_to_char((acc >> acc_len) & 0x3F);
}
}
if (acc_len > 0) {
*dst++ = (char)b64_byte_to_char((acc << (6 - acc_len)) & 0x3F);
}
*dst++ = 0;
return olen;
}
/*
* Decode Base64 chars into bytes. The '*dst_len' value must initially
* contain the length of the output buffer '*dst'; when the decoding
* ends, the actual number of decoded bytes is written back in
* '*dst_len'.
*
* Decoding stops when a non-Base64 character is encountered, or when
* the output buffer capacity is exceeded. If an error occurred (output
* buffer is too small, invalid last characters leading to unprocessed
* buffered bits), then NULL is returned; otherwise, the returned value
* points to the first non-Base64 character in the source stream, which
* may be the terminating zero.
*/
static const char *from_base64(void *dst, size_t *dst_len, const char *src) {
size_t len;
unsigned char *buf;
unsigned acc, acc_len;
buf = (unsigned char *)dst;
len = 0;
acc = 0;
acc_len = 0;
for (;;) {
unsigned d;
d = b64_char_to_byte(*src);
if (d == 0xFF) {
break;
}
src++;
acc = (acc << 6) + d;
acc_len += 6;
if (acc_len >= 8) {
acc_len -= 8;
if ((len++) >= *dst_len) {
return NULL;
}
*buf++ = (acc >> acc_len) & 0xFF;
}
}
/*
* If the input length is equal to 1 modulo 4 (which is
* invalid), then there will remain 6 unprocessed bits;
* otherwise, only 0, 2 or 4 bits are buffered. The buffered
* bits must also all be zero.
*/
if (acc_len > 4 || (acc & (((unsigned)1 << acc_len) - 1)) != 0) {
return NULL;
}
*dst_len = len;
return src;
}
/*
* Decode decimal integer from 'str'; the value is written in '*v'.
* Returned value is a pointer to the next non-decimal character in the
* string. If there is no digit at all, or the value encoding is not
* minimal (extra leading zeros), or the value does not fit in an
* 'unsigned long', then NULL is returned.
*/
static const char *decode_decimal(const char *str, unsigned long *v) {
const char *orig;
unsigned long acc;
acc = 0;
for (orig = str;; str++) {
int c;
c = *str;
if (c < '0' || c > '9') {
break;
}
c -= '0';
if (acc > (ULONG_MAX / 10)) {
return NULL;
}
acc *= 10;
if ((unsigned long)c > (ULONG_MAX - acc)) {
return NULL;
}
acc += (unsigned long)c;
}
if (str == orig || (*orig == '0' && str != (orig + 1))) {
return NULL;
}
*v = acc;
return str;
}
/* ==================================================================== */
/*
* Code specific to Argon2.
*
* The code below applies the following format:
*
* $argon2<T>[$v=<num>]$m=<num>,t=<num>,p=<num>$<bin>$<bin>
*
* where <T> is either 'd', 'id', or 'i', <num> is a decimal integer (positive,
* fits in an 'unsigned long'), and <bin> is Base64-encoded data (no '=' padding
* characters, no newline or whitespace).
*
* The last two binary chunks (encoded in Base64) are, in that order,
* the salt and the output. Both are required. The binary salt length and the
* output length must be in the allowed ranges defined in argon2.h.
*
* The ctx struct must contain buffers large enough to hold the salt and pwd
* when it is fed into decode_string.
*/
int decode_string(argon2_context *ctx, const char *str, argon2_type type) {
/* check for prefix */
#define CC(prefix) \
do { \
size_t cc_len = strlen(prefix); \
if (strncmp(str, prefix, cc_len) != 0) { \
return ARGON2_DECODING_FAIL; \
} \
str += cc_len; \
} while ((void)0, 0)
/* optional prefix checking with supplied code */
#define CC_opt(prefix, code) \
do { \
size_t cc_len = strlen(prefix); \
if (strncmp(str, prefix, cc_len) == 0) { \
str += cc_len; \
{ code; } \
} \
} while ((void)0, 0)
/* Decoding prefix into decimal */
#define DECIMAL(x) \
do { \
unsigned long dec_x; \
str = decode_decimal(str, &dec_x); \
if (str == NULL) { \
return ARGON2_DECODING_FAIL; \
} \
(x) = dec_x; \
} while ((void)0, 0)
/* Decoding prefix into uint32_t decimal */
#define DECIMAL_U32(x) \
do { \
unsigned long dec_x; \
str = decode_decimal(str, &dec_x); \
if (str == NULL || dec_x > UINT32_MAX) { \
return ARGON2_DECODING_FAIL; \
} \
(x) = (uint32_t)dec_x; \
} while ((void)0, 0)
/* Decoding base64 into a binary buffer */
#define BIN(buf, max_len, len) \
do { \
size_t bin_len = (max_len); \
str = from_base64(buf, &bin_len, str); \
if (str == NULL || bin_len > UINT32_MAX) { \
return ARGON2_DECODING_FAIL; \
} \
(len) = (uint32_t)bin_len; \
} while ((void)0, 0)
size_t maxsaltlen = ctx->saltlen;
size_t maxoutlen = ctx->outlen;
int validation_result;
const char* type_string;
/* We should start with the argon2_type we are using */
type_string = argon2_type2string(type, 0);
if (!type_string) {
return ARGON2_INCORRECT_TYPE;
}
CC("$");
CC(type_string);
/* Reading the version number if the default is suppressed */
ctx->version = ARGON2_VERSION_10;
CC_opt("$v=", DECIMAL_U32(ctx->version));
CC("$m=");
DECIMAL_U32(ctx->m_cost);
CC(",t=");
DECIMAL_U32(ctx->t_cost);
CC(",p=");
DECIMAL_U32(ctx->lanes);
ctx->threads = ctx->lanes;
CC("$");
BIN(ctx->salt, maxsaltlen, ctx->saltlen);
CC("$");
BIN(ctx->out, maxoutlen, ctx->outlen);
/* The rest of the fields get the default values */
ctx->secret = NULL;
ctx->secretlen = 0;
ctx->ad = NULL;
ctx->adlen = 0;
ctx->allocate_cbk = NULL;
ctx->free_cbk = NULL;
ctx->flags = ARGON2_DEFAULT_FLAGS;
/* On return, must have valid context */
validation_result = validate_inputs(ctx);
if (validation_result != ARGON2_OK) {
return validation_result;
}
/* Can't have any additional characters */
if (*str == 0) {
return ARGON2_OK;
} else {
return ARGON2_DECODING_FAIL;
}
#undef CC
#undef CC_opt
#undef DECIMAL
#undef BIN
}
static void encode_decimal(int i, char b[]){
#ifdef ARGON2_JS
// because this generates WASM error:
// sprintf(tmp, "%lu", (unsigned long)(x));
char const digit[] = "0123456789";
char* p = b;
if(i<0){
*p++ = '-';
i *= -1;
}
int shifter = i;
do{ //Move to where representation ends
++p;
shifter = shifter/10;
}while(shifter);
*p = '\0';
do{ //Move back, inserting digits as u go
*--p = digit[i%10];
i = i/10;
}while(i);
#else
sprintf(b, "%lu", (unsigned long)(i));
#endif
}
int encode_string(char *dst, size_t dst_len, argon2_context *ctx,
argon2_type type) {
#define SS(str) \
do { \
size_t pp_len = strlen(str); \
if (pp_len >= dst_len) { \
return ARGON2_ENCODING_FAIL; \
} \
memcpy(dst, str, pp_len + 1); \
dst += pp_len; \
dst_len -= pp_len; \
} while ((void)0, 0)
#define SX(x) \
do { \
char tmp[30]; \
encode_decimal(x, tmp); \
SS(tmp); \
} while ((void)0, 0)
#define SB(buf, len) \
do { \
size_t sb_len = to_base64(dst, dst_len, buf, len); \
if (sb_len == (size_t)-1) { \
return ARGON2_ENCODING_FAIL; \
} \
dst += sb_len; \
dst_len -= sb_len; \
} while ((void)0, 0)
const char* type_string = argon2_type2string(type, 0);
int validation_result = validate_inputs(ctx);
if (!type_string) {
return ARGON2_ENCODING_FAIL;
}
if (validation_result != ARGON2_OK) {
return validation_result;
}
SS("$");
SS(type_string);
SS("$v=");
SX(ctx->version);
SS("$m=");
SX(ctx->m_cost);
SS(",t=");
SX(ctx->t_cost);
SS(",p=");
SX(ctx->lanes);
SS("$");
SB(ctx->salt, ctx->saltlen);
SS("$");
SB(ctx->out, ctx->outlen);
return ARGON2_OK;
#undef SS
#undef SX
#undef SB
}
size_t b64len(uint32_t len) {
size_t olen = ((size_t)len / 3) << 2;
switch (len % 3) {
case 2:
olen++;
/* fall through */
case 1:
olen += 2;
break;
}
return olen;
}
size_t numlen(uint32_t num) {
size_t len = 1;
while (num >= 10) {
++len;
num = num / 10;
}
return len;
}

57
rust/ares/src/urcrypt/argon2/src/encoding.h
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/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#ifndef ENCODING_H
#define ENCODING_H
#include "argon2.h"
#define ARGON2_MAX_DECODED_LANES UINT32_C(255)
#define ARGON2_MIN_DECODED_SALT_LEN UINT32_C(8)
#define ARGON2_MIN_DECODED_OUT_LEN UINT32_C(12)
/*
* encode an Argon2 hash string into the provided buffer. 'dst_len'
* contains the size, in characters, of the 'dst' buffer; if 'dst_len'
* is less than the number of required characters (including the
* terminating 0), then this function returns ARGON2_ENCODING_ERROR.
*
* on success, ARGON2_OK is returned.
*/
int encode_string(char *dst, size_t dst_len, argon2_context *ctx,
argon2_type type);
/*
* Decodes an Argon2 hash string into the provided structure 'ctx'.
* The only fields that must be set prior to this call are ctx.saltlen and
* ctx.outlen (which must be the maximal salt and out length values that are
* allowed), ctx.salt and ctx.out (which must be buffers of the specified
* length), and ctx.pwd and ctx.pwdlen which must hold a valid password.
*
* Invalid input string causes an error. On success, the ctx is valid and all
* fields have been initialized.
*
* Returned value is ARGON2_OK on success, other ARGON2_ codes on error.
*/
int decode_string(argon2_context *ctx, const char *str, argon2_type type);
/* Returns the length of the encoded byte stream with length len */
size_t b64len(uint32_t len);
/* Returns the length of the encoded number num */
size_t numlen(uint32_t num);
#endif

209
rust/ares/src/urcrypt/argon2/src/genkat.c
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/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "argon2.h"
#include "core.h"
void initial_kat(const uint8_t *blockhash, const argon2_context *context,
argon2_type type) {
unsigned i;
if (blockhash != NULL && context != NULL) {
printf("=======================================\n");
printf("%s version number %d\n", argon2_type2string(type, 1),
context->version);
printf("=======================================\n");
printf("Memory: %u KiB, Iterations: %u, Parallelism: %u lanes, Tag "
"length: %u bytes\n",
context->m_cost, context->t_cost, context->lanes,
context->outlen);
printf("Password[%u]: ", context->pwdlen);
if (context->flags & ARGON2_FLAG_CLEAR_PASSWORD) {
printf("CLEARED\n");
} else {
for (i = 0; i < context->pwdlen; ++i) {
printf("%2.2x ", ((unsigned char *)context->pwd)[i]);
}
printf("\n");
}
printf("Salt[%u]: ", context->saltlen);
for (i = 0; i < context->saltlen; ++i) {
printf("%2.2x ", ((unsigned char *)context->salt)[i]);
}
printf("\n");
printf("Secret[%u]: ", context->secretlen);
if (context->flags & ARGON2_FLAG_CLEAR_SECRET) {
printf("CLEARED\n");
} else {
for (i = 0; i < context->secretlen; ++i) {
printf("%2.2x ", ((unsigned char *)context->secret)[i]);
}
printf("\n");
}
printf("Associated data[%u]: ", context->adlen);
for (i = 0; i < context->adlen; ++i) {
printf("%2.2x ", ((unsigned char *)context->ad)[i]);
}
printf("\n");
printf("Pre-hashing digest: ");
for (i = 0; i < ARGON2_PREHASH_DIGEST_LENGTH; ++i) {
printf("%2.2x ", ((unsigned char *)blockhash)[i]);
}
printf("\n");
}
}
void print_tag(const void *out, uint32_t outlen) {
unsigned i;
if (out != NULL) {
printf("Tag: ");
for (i = 0; i < outlen; ++i) {
printf("%2.2x ", ((uint8_t *)out)[i]);
}
printf("\n");
}
}
void internal_kat(const argon2_instance_t *instance, uint32_t pass) {
if (instance != NULL) {
uint32_t i, j;
printf("\n After pass %u:\n", pass);
for (i = 0; i < instance->memory_blocks; ++i) {
uint32_t how_many_words =
(instance->memory_blocks > ARGON2_QWORDS_IN_BLOCK)
? 1
: ARGON2_QWORDS_IN_BLOCK;
for (j = 0; j < how_many_words; ++j)
printf("Block %.4u [%3u]: %016llx\n", i, j,
(unsigned long long)instance->memory[i].v[j]);
}
}
}
static void fatal(const char *error) {
fprintf(stderr, "Error: %s\n", error);
exit(1);
}
static void generate_testvectors(argon2_type type, const uint32_t version) {
#define TEST_OUTLEN 32
#define TEST_PWDLEN 32
#define TEST_SALTLEN 16
#define TEST_SECRETLEN 8
#define TEST_ADLEN 12
argon2_context context;
unsigned char out[TEST_OUTLEN];
unsigned char pwd[TEST_PWDLEN];
unsigned char salt[TEST_SALTLEN];
unsigned char secret[TEST_SECRETLEN];
unsigned char ad[TEST_ADLEN];
const allocate_fptr myown_allocator = NULL;
const deallocate_fptr myown_deallocator = NULL;
unsigned t_cost = 3;
unsigned m_cost = 32;
unsigned lanes = 4;
memset(pwd, 1, TEST_OUTLEN);
memset(salt, 2, TEST_SALTLEN);
memset(secret, 3, TEST_SECRETLEN);
memset(ad, 4, TEST_ADLEN);
context.out = out;
context.outlen = TEST_OUTLEN;
context.version = version;
context.pwd = pwd;
context.pwdlen = TEST_PWDLEN;
context.salt = salt;
context.saltlen = TEST_SALTLEN;
context.secret = secret;
context.secretlen = TEST_SECRETLEN;
context.ad = ad;
context.adlen = TEST_ADLEN;
context.t_cost = t_cost;
context.m_cost = m_cost;
context.lanes = lanes;
context.threads = lanes;
context.allocate_cbk = myown_allocator;
context.free_cbk = myown_deallocator;
context.flags = ARGON2_DEFAULT_FLAGS;
#undef TEST_OUTLEN
#undef TEST_PWDLEN
#undef TEST_SALTLEN
#undef TEST_SECRETLEN
#undef TEST_ADLEN
argon2_ctx(&context, type);
}
int main(int argc, char *argv[]) {
/* Get and check Argon2 type */
const char *type_str = (argc > 1) ? argv[1] : "i";
argon2_type type = Argon2_i;
uint32_t version = ARGON2_VERSION_NUMBER;
if (!strcmp(type_str, "d")) {
type = Argon2_d;
} else if (!strcmp(type_str, "i")) {
type = Argon2_i;
} else if (!strcmp(type_str, "id")) {
type = Argon2_id;
} else if (!strcmp(type_str, "u")) {
type = Argon2_u;
} else {
fatal("wrong Argon2 type");
}
/* Get and check Argon2 version number */
if (argc > 2) {
version = strtoul(argv[2], NULL, 10);
}
if (ARGON2_VERSION_10 != version && ARGON2_VERSION_NUMBER != version) {
fatal("wrong Argon2 version number");
}
generate_testvectors(type, version);
return ARGON2_OK;
}

51
rust/ares/src/urcrypt/argon2/src/genkat.h
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/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#ifndef ARGON2_KAT_H
#define ARGON2_KAT_H
#include "core.h"
/*
* Initial KAT function that prints the inputs to the file
* @param blockhash Array that contains pre-hashing digest
* @param context Holds inputs
* @param type Argon2 type
* @pre blockhash must point to INPUT_INITIAL_HASH_LENGTH bytes
* @pre context member pointers must point to allocated memory of size according
* to the length values
*/
void initial_kat(const uint8_t *blockhash, const argon2_context *context,
argon2_type type);
/*
* Function that prints the output tag
* @param out output array pointer
* @param outlen digest length
* @pre out must point to @a outlen bytes
**/
void print_tag(const void *out, uint32_t outlen);
/*
* Function that prints the internal state at given moment
* @param instance pointer to the current instance
* @param pass current pass number
* @pre instance must have necessary memory allocated
**/
void internal_kat(const argon2_instance_t *instance, uint32_t pass);
#endif

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rust/ares/src/urcrypt/argon2/src/opt.c
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/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include "argon2.h"
#include "core.h"
#include "blake2/blake2.h"
#include "blake2/blamka-round-opt.h"
/*
* Function fills a new memory block and optionally XORs the old block over the new one.
* Memory must be initialized.
* @param state Pointer to the just produced block. Content will be updated(!)
* @param ref_block Pointer to the reference block
* @param next_block Pointer to the block to be XORed over. May coincide with @ref_block
* @param with_xor Whether to XOR into the new block (1) or just overwrite (0)
* @pre all block pointers must be valid
*/
#if defined(__AVX512F__)
static void fill_block(__m512i *state, const block *ref_block,
block *next_block, int with_xor) {
__m512i block_XY[ARGON2_512BIT_WORDS_IN_BLOCK];
unsigned int i;
if (with_xor) {
for (i = 0; i < ARGON2_512BIT_WORDS_IN_BLOCK; i++) {
state[i] = _mm512_xor_si512(
state[i], _mm512_loadu_si512((const __m512i *)ref_block->v + i));
block_XY[i] = _mm512_xor_si512(
state[i], _mm512_loadu_si512((const __m512i *)next_block->v + i));
}
} else {
for (i = 0; i < ARGON2_512BIT_WORDS_IN_BLOCK; i++) {
block_XY[i] = state[i] = _mm512_xor_si512(
state[i], _mm512_loadu_si512((const __m512i *)ref_block->v + i));
}
}
for (i = 0; i < 2; ++i) {
BLAKE2_ROUND_1(
state[8 * i + 0], state[8 * i + 1], state[8 * i + 2], state[8 * i + 3],
state[8 * i + 4], state[8 * i + 5], state[8 * i + 6], state[8 * i + 7]);
}
for (i = 0; i < 2; ++i) {
BLAKE2_ROUND_2(
state[2 * 0 + i], state[2 * 1 + i], state[2 * 2 + i], state[2 * 3 + i],
state[2 * 4 + i], state[2 * 5 + i], state[2 * 6 + i], state[2 * 7 + i]);
}
for (i = 0; i < ARGON2_512BIT_WORDS_IN_BLOCK; i++) {
state[i] = _mm512_xor_si512(state[i], block_XY[i]);
_mm512_storeu_si512((__m512i *)next_block->v + i, state[i]);
}
}
#elif defined(__AVX2__)
static void fill_block(__m256i *state, const block *ref_block,
block *next_block, int with_xor) {
__m256i block_XY[ARGON2_HWORDS_IN_BLOCK];
unsigned int i;
if (with_xor) {
for (i = 0; i < ARGON2_HWORDS_IN_BLOCK; i++) {
state[i] = _mm256_xor_si256(
state[i], _mm256_loadu_si256((const __m256i *)ref_block->v + i));
block_XY[i] = _mm256_xor_si256(
state[i], _mm256_loadu_si256((const __m256i *)next_block->v + i));
}
} else {
for (i = 0; i < ARGON2_HWORDS_IN_BLOCK; i++) {
block_XY[i] = state[i] = _mm256_xor_si256(
state[i], _mm256_loadu_si256((const __m256i *)ref_block->v + i));
}
}
for (i = 0; i < 4; ++i) {
BLAKE2_ROUND_1(state[8 * i + 0], state[8 * i + 4], state[8 * i + 1], state[8 * i + 5],
state[8 * i + 2], state[8 * i + 6], state[8 * i + 3], state[8 * i + 7]);
}
for (i = 0; i < 4; ++i) {
BLAKE2_ROUND_2(state[ 0 + i], state[ 4 + i], state[ 8 + i], state[12 + i],
state[16 + i], state[20 + i], state[24 + i], state[28 + i]);
}
for (i = 0; i < ARGON2_HWORDS_IN_BLOCK; i++) {
state[i] = _mm256_xor_si256(state[i], block_XY[i]);
_mm256_storeu_si256((__m256i *)next_block->v + i, state[i]);
}
}
#else
static void fill_block(__m128i *state, const block *ref_block,
block *next_block, int with_xor) {
__m128i block_XY[ARGON2_OWORDS_IN_BLOCK];
unsigned int i;
if (with_xor) {
for (i = 0; i < ARGON2_OWORDS_IN_BLOCK; i++) {
state[i] = _mm_xor_si128(
state[i], _mm_loadu_si128((const __m128i *)ref_block->v + i));
block_XY[i] = _mm_xor_si128(
state[i], _mm_loadu_si128((const __m128i *)next_block->v + i));
}
} else {
for (i = 0; i < ARGON2_OWORDS_IN_BLOCK; i++) {
block_XY[i] = state[i] = _mm_xor_si128(
state[i], _mm_loadu_si128((const __m128i *)ref_block->v + i));
}
}
for (i = 0; i < 8; ++i) {
BLAKE2_ROUND(state[8 * i + 0], state[8 * i + 1], state[8 * i + 2],
state[8 * i + 3], state[8 * i + 4], state[8 * i + 5],
state[8 * i + 6], state[8 * i + 7]);
}
for (i = 0; i < 8; ++i) {
BLAKE2_ROUND(state[8 * 0 + i], state[8 * 1 + i], state[8 * 2 + i],
state[8 * 3 + i], state[8 * 4 + i], state[8 * 5 + i],
state[8 * 6 + i], state[8 * 7 + i]);
}
for (i = 0; i < ARGON2_OWORDS_IN_BLOCK; i++) {
state[i] = _mm_xor_si128(state[i], block_XY[i]);
_mm_storeu_si128((__m128i *)next_block->v + i, state[i]);
}
}
#endif
static void next_addresses(block *address_block, block *input_block) {
/*Temporary zero-initialized blocks*/
#if defined(__AVX512F__)
__m512i zero_block[ARGON2_512BIT_WORDS_IN_BLOCK];
__m512i zero2_block[ARGON2_512BIT_WORDS_IN_BLOCK];
#elif defined(__AVX2__)
__m256i zero_block[ARGON2_HWORDS_IN_BLOCK];
__m256i zero2_block[ARGON2_HWORDS_IN_BLOCK];
#else
__m128i zero_block[ARGON2_OWORDS_IN_BLOCK];
__m128i zero2_block[ARGON2_OWORDS_IN_BLOCK];
#endif
memset(zero_block, 0, sizeof(zero_block));
memset(zero2_block, 0, sizeof(zero2_block));
/*Increasing index counter*/
input_block->v[6]++;
/*First iteration of G*/
fill_block(zero_block, input_block, address_block, 0);
/*Second iteration of G*/
fill_block(zero2_block, address_block, address_block, 0);
}
void fill_segment(const argon2_instance_t *instance,
argon2_position_t position) {
block *ref_block = NULL, *curr_block = NULL;
block address_block, input_block;
uint64_t pseudo_rand, ref_index, ref_lane;
uint32_t prev_offset, curr_offset;
uint32_t starting_index, i;
#if defined(__AVX512F__)
__m512i state[ARGON2_512BIT_WORDS_IN_BLOCK];
#elif defined(__AVX2__)
__m256i state[ARGON2_HWORDS_IN_BLOCK];
#else
__m128i state[ARGON2_OWORDS_IN_BLOCK];
#endif
int data_independent_addressing;
if (instance == NULL) {
return;
}
data_independent_addressing =
(instance->type == Argon2_i) ||
(instance->type == Argon2_id && (position.pass == 0) &&
(position.slice < ARGON2_SYNC_POINTS / 2)) ||
(instance->type == Argon2_u && (position.pass == 0) &&
(position.slice <= ARGON2_SYNC_POINTS / 2));
if (data_independent_addressing) {
init_block_value(&input_block, 0);
input_block.v[0] = position.pass;
input_block.v[1] = position.lane;
input_block.v[2] = position.slice;
input_block.v[3] = instance->memory_blocks;
input_block.v[4] = instance->passes;
input_block.v[5] = instance->type;
}
starting_index = 0;
if ((0 == position.pass) && (0 == position.slice)) {
starting_index = 2; /* we have already generated the first two blocks */
/* Don't forget to generate the first block of addresses: */
if (data_independent_addressing) {
next_addresses(&address_block, &input_block);
}
}
/* Offset of the current block */
curr_offset = position.lane * instance->lane_length +
position.slice * instance->segment_length + starting_index;
if (0 == curr_offset % instance->lane_length) {
/* Last block in this lane */
prev_offset = curr_offset + instance->lane_length - 1;
} else {
/* Previous block */
prev_offset = curr_offset - 1;
}
memcpy(state, ((instance->memory + prev_offset)->v), ARGON2_BLOCK_SIZE);
for (i = starting_index; i < instance->segment_length;
++i, ++curr_offset, ++prev_offset) {
/*1.1 Rotating prev_offset if needed */
if (curr_offset % instance->lane_length == 1) {
prev_offset = curr_offset - 1;
}
/* 1.2 Computing the index of the reference block */
/* 1.2.1 Taking pseudo-random value from the previous block */
if (data_independent_addressing) {
if (i % ARGON2_ADDRESSES_IN_BLOCK == 0) {
next_addresses(&address_block, &input_block);
}
pseudo_rand = address_block.v[i % ARGON2_ADDRESSES_IN_BLOCK];
} else {
pseudo_rand = instance->memory[prev_offset].v[0];
}
/* 1.2.2 Computing the lane of the reference block */
ref_lane = ((pseudo_rand >> 32)) % instance->lanes;
if ((position.pass == 0) && (position.slice == 0)) {
/* Can not reference other lanes yet */
ref_lane = position.lane;
}
/* 1.2.3 Computing the number of possible reference block within the
* lane.
*/
position.index = i;
ref_index = index_alpha(instance, &position, pseudo_rand & 0xFFFFFFFF,
ref_lane == position.lane);
/* 2 Creating a new block */
ref_block =
instance->memory + instance->lane_length * ref_lane + ref_index;
curr_block = instance->memory + curr_offset;
if (ARGON2_VERSION_10 == instance->version) {
/* version 1.2.1 and earlier: overwrite, not XOR */
fill_block(state, ref_block, curr_block, 0);
} else {
if(0 == position.pass) {
fill_block(state, ref_block, curr_block, 0);
} else {
fill_block(state, ref_block, curr_block, 1);
}
}
}
}

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rust/ares/src/urcrypt/argon2/src/ref.c
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@ -1,196 +0,0 @@
/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include "argon2.h"
#include "core.h"
#include "blake2/blamka-round-ref.h"
#include "blake2/blake2-impl.h"
#include "blake2/blake2.h"
/*
* Function fills a new memory block and optionally XORs the old block over the new one.
* @next_block must be initialized.
* @param prev_block Pointer to the previous block
* @param ref_block Pointer to the reference block
* @param next_block Pointer to the block to be constructed
* @param with_xor Whether to XOR into the new block (1) or just overwrite (0)
* @pre all block pointers must be valid
*/
static void fill_block(const block *prev_block, const block *ref_block,
block *next_block, int with_xor) {
block blockR, block_tmp;
unsigned i;
copy_block(&blockR, ref_block);
xor_block(&blockR, prev_block);
copy_block(&block_tmp, &blockR);
/* Now blockR = ref_block + prev_block and block_tmp = ref_block + prev_block */
if (with_xor) {
/* Saving the next block contents for XOR over: */
xor_block(&block_tmp, next_block);
/* Now blockR = ref_block + prev_block and
block_tmp = ref_block + prev_block + next_block */
}
/* Apply Blake2 on columns of 64-bit words: (0,1,...,15) , then
(16,17,..31)... finally (112,113,...127) */
for (i = 0; i < 8; ++i) {
BLAKE2_ROUND_NOMSG(
blockR.v[16 * i], blockR.v[16 * i + 1], blockR.v[16 * i + 2],
blockR.v[16 * i + 3], blockR.v[16 * i + 4], blockR.v[16 * i + 5],
blockR.v[16 * i + 6], blockR.v[16 * i + 7], blockR.v[16 * i + 8],
blockR.v[16 * i + 9], blockR.v[16 * i + 10], blockR.v[16 * i + 11],
blockR.v[16 * i + 12], blockR.v[16 * i + 13], blockR.v[16 * i + 14],
blockR.v[16 * i + 15]);
}
/* Apply Blake2 on rows of 64-bit words: (0,1,16,17,...112,113), then
(2,3,18,19,...,114,115).. finally (14,15,30,31,...,126,127) */
for (i = 0; i < 8; i++) {
BLAKE2_ROUND_NOMSG(
blockR.v[2 * i], blockR.v[2 * i + 1], blockR.v[2 * i + 16],
blockR.v[2 * i + 17], blockR.v[2 * i + 32], blockR.v[2 * i + 33],
blockR.v[2 * i + 48], blockR.v[2 * i + 49], blockR.v[2 * i + 64],
blockR.v[2 * i + 65], blockR.v[2 * i + 80], blockR.v[2 * i + 81],
blockR.v[2 * i + 96], blockR.v[2 * i + 97], blockR.v[2 * i + 112],
blockR.v[2 * i + 113]);
}
copy_block(next_block, &block_tmp);
xor_block(next_block, &blockR);
}
static void next_addresses(block *address_block, block *input_block,
const block *zero_block) {
input_block->v[6]++;
fill_block(zero_block, input_block, address_block, 0);
fill_block(zero_block, address_block, address_block, 0);
}
void fill_segment(const argon2_instance_t *instance,
argon2_position_t position) {
block *ref_block = NULL, *curr_block = NULL;
block address_block, input_block, zero_block;
uint64_t pseudo_rand, ref_index, ref_lane;
uint32_t prev_offset, curr_offset;
uint32_t starting_index;
uint32_t i;
int data_independent_addressing;
if (instance == NULL) {
return;
}
data_independent_addressing =
(instance->type == Argon2_i) ||
(instance->type == Argon2_id && (position.pass == 0) &&
(position.slice < ARGON2_SYNC_POINTS / 2)) ||
(instance->type == Argon2_u && (position.pass == 0) &&
(position.slice <= ARGON2_SYNC_POINTS / 2));
if (data_independent_addressing) {
init_block_value(&zero_block, 0);
init_block_value(&input_block, 0);
input_block.v[0] = position.pass;
input_block.v[1] = position.lane;
input_block.v[2] = position.slice;
input_block.v[3] = instance->memory_blocks;
input_block.v[4] = instance->passes;
input_block.v[5] = instance->type;
}
starting_index = 0;
if ((0 == position.pass) && (0 == position.slice)) {
starting_index = 2; /* we have already generated the first two blocks */
/* Don't forget to generate the first block of addresses: */
if (data_independent_addressing) {
next_addresses(&address_block, &input_block, &zero_block);
}
}
/* Offset of the current block */
curr_offset = position.lane * instance->lane_length +
position.slice * instance->segment_length + starting_index;
if (0 == curr_offset % instance->lane_length) {
/* Last block in this lane */
prev_offset = curr_offset + instance->lane_length - 1;
} else {
/* Previous block */
prev_offset = curr_offset - 1;
}
for (i = starting_index; i < instance->segment_length;
++i, ++curr_offset, ++prev_offset) {
/*1.1 Rotating prev_offset if needed */
if (curr_offset % instance->lane_length == 1) {
prev_offset = curr_offset - 1;
}
/* 1.2 Computing the index of the reference block */
/* 1.2.1 Taking pseudo-random value from the previous block */
if (data_independent_addressing) {
if (i % ARGON2_ADDRESSES_IN_BLOCK == 0) {
next_addresses(&address_block, &input_block, &zero_block);
}
pseudo_rand = address_block.v[i % ARGON2_ADDRESSES_IN_BLOCK];
} else {
pseudo_rand = instance->memory[prev_offset].v[0];
}
/* 1.2.2 Computing the lane of the reference block */
ref_lane = ((pseudo_rand >> 32)) % instance->lanes;
if ((position.pass == 0) && (position.slice == 0)) {
/* Can not reference other lanes yet */
ref_lane = position.lane;
}
/* 1.2.3 Computing the number of possible reference block within the
* lane.
*/
position.index = i;
ref_index = index_alpha(instance, &position, pseudo_rand & 0xFFFFFFFF,
ref_lane == position.lane);
/* 2 Creating a new block */
ref_block =
instance->memory + instance->lane_length * ref_lane + ref_index;
curr_block = instance->memory + curr_offset;
if (ARGON2_VERSION_10 == instance->version) {
/* version 1.2.1 and earlier: overwrite, not XOR */
fill_block(instance->memory + prev_offset, ref_block, curr_block, 0);
} else {
if(0 == position.pass) {
fill_block(instance->memory + prev_offset, ref_block,
curr_block, 0);
} else {
fill_block(instance->memory + prev_offset, ref_block,
curr_block, 1);
}
}
}
}

341
rust/ares/src/urcrypt/argon2/src/run.c
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@ -1,341 +0,0 @@
/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#define _GNU_SOURCE 1
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "argon2.h"
#include "core.h"
#define T_COST_DEF 3
#define LOG_M_COST_DEF 12 /* 2^12 = 4 MiB */
#define LANES_DEF 1
#define THREADS_DEF 1
#define OUTLEN_DEF 32
#define MAX_PASS_LEN 128
#define UNUSED_PARAMETER(x) (void)(x)
static void usage(const char *cmd) {
printf("Usage: %s [-h] salt [-i|-d|-id] [-t iterations] "
"[-m log2(memory in KiB) | -k memory in KiB] [-p parallelism] "
"[-l hash length] [-e|-r] [-v (10|13)]\n",
cmd);
printf("\tPassword is read from stdin\n");
printf("Parameters:\n");
printf("\tsalt\t\tThe salt to use, at least 8 characters\n");
printf("\t-i\t\tUse Argon2i (this is the default)\n");
printf("\t-d\t\tUse Argon2d instead of Argon2i\n");
printf("\t-id\t\tUse Argon2id instead of Argon2i\n");
printf("\t-u\t\tUse Argon2u instead of Argon2i\n");
printf("\t-t N\t\tSets the number of iterations to N (default = %d)\n",
T_COST_DEF);
printf("\t-m N\t\tSets the memory usage of 2^N KiB (default %d)\n",
LOG_M_COST_DEF);
printf("\t-k N\t\tSets the memory usage of N KiB (default %d)\n",
1 << LOG_M_COST_DEF);
printf("\t-p N\t\tSets parallelism to N threads (default %d)\n",
THREADS_DEF);
printf("\t-l N\t\tSets hash output length to N bytes (default %d)\n",
OUTLEN_DEF);
printf("\t-e\t\tOutput only encoded hash\n");
printf("\t-r\t\tOutput only the raw bytes of the hash\n");
printf("\t-v (10|13)\tArgon2 version (defaults to the most recent version, currently %x)\n",
ARGON2_VERSION_NUMBER);
printf("\t-h\t\tPrint %s usage\n", cmd);
}
static void fatal(const char *error) {
fprintf(stderr, "Error: %s\n", error);
exit(1);
}
static void print_hex(uint8_t *bytes, size_t bytes_len) {
size_t i;
for (i = 0; i < bytes_len; ++i) {
printf("%02x", bytes[i]);
}
printf("\n");
}
/*
Runs Argon2 with certain inputs and parameters, inputs not cleared. Prints the
Base64-encoded hash string
@out output array with at least 32 bytes allocated
@pwd NULL-terminated string, presumably from argv[]
@salt salt array
@t_cost number of iterations
@m_cost amount of requested memory in KB
@lanes amount of requested parallelism
@threads actual parallelism
@type Argon2 type we want to run
@encoded_only display only the encoded hash
@raw_only display only the hexadecimal of the hash
@version Argon2 version
*/
static void run(uint32_t outlen, char *pwd, size_t pwdlen, char *salt, uint32_t t_cost,
uint32_t m_cost, uint32_t lanes, uint32_t threads,
argon2_type type, int encoded_only, int raw_only, uint32_t version) {
clock_t start_time, stop_time;
size_t saltlen, encodedlen;
int result;
unsigned char * out = NULL;
char * encoded = NULL;
start_time = clock();
if (!pwd) {
fatal("password missing");
}
if (!salt) {
clear_internal_memory(pwd, pwdlen);
fatal("salt missing");
}
saltlen = strlen(salt);
if(UINT32_MAX < saltlen) {
fatal("salt is too long");
}
UNUSED_PARAMETER(lanes);
out = malloc(outlen + 1);
if (!out) {
clear_internal_memory(pwd, pwdlen);
fatal("could not allocate memory for output");
}
encodedlen = argon2_encodedlen(t_cost, m_cost, lanes, (uint32_t)saltlen, outlen, type);
encoded = malloc(encodedlen + 1);
if (!encoded) {
clear_internal_memory(pwd, pwdlen);
fatal("could not allocate memory for hash");
}
result = argon2_hash(t_cost, m_cost, threads, pwd, pwdlen, salt, saltlen,
out, outlen, encoded, encodedlen, type,
version);
if (result != ARGON2_OK)
fatal(argon2_error_message(result));
stop_time = clock();
if (encoded_only)
puts(encoded);
if (raw_only)
print_hex(out, outlen);
if (encoded_only || raw_only) {
free(out);
free(encoded);
return;
}
printf("Hash:\t\t");
print_hex(out, outlen);
free(out);
printf("Encoded:\t%s\n", encoded);
printf("%2.3f seconds\n",
((double)stop_time - start_time) / (CLOCKS_PER_SEC));
result = argon2_verify(encoded, pwd, pwdlen, type);
if (result != ARGON2_OK)
fatal(argon2_error_message(result));
printf("Verification ok\n");
free(encoded);
}
int main(int argc, char *argv[]) {
uint32_t outlen = OUTLEN_DEF;
uint32_t m_cost = 1 << LOG_M_COST_DEF;
uint32_t t_cost = T_COST_DEF;
uint32_t lanes = LANES_DEF;
uint32_t threads = THREADS_DEF;
argon2_type type = Argon2_i; /* Argon2i is the default type */
int types_specified = 0;
int m_cost_specified = 0;
int encoded_only = 0;
int raw_only = 0;
uint32_t version = ARGON2_VERSION_NUMBER;
int i;
size_t pwdlen;
char pwd[MAX_PASS_LEN], *salt;
if (argc < 2) {
usage(argv[0]);
return ARGON2_MISSING_ARGS;
} else if (argc >= 2 && strcmp(argv[1], "-h") == 0) {
usage(argv[0]);
return 1;
}
/* get password from stdin */
pwdlen = fread(pwd, 1, sizeof pwd, stdin);
if(pwdlen < 1) {
fatal("no password read");
}
if(pwdlen == MAX_PASS_LEN) {
fatal("Provided password longer than supported in command line utility");
}
salt = argv[1];
/* parse options */
for (i = 2; i < argc; i++) {
const char *a = argv[i];
unsigned long input = 0;
if (!strcmp(a, "-h")) {
usage(argv[0]);
return 1;
} else if (!strcmp(a, "-m")) {
if (m_cost_specified) {
fatal("-m or -k can only be used once");
}
m_cost_specified = 1;
if (i < argc - 1) {
i++;
input = strtoul(argv[i], NULL, 10);
if (input == 0 || input == ULONG_MAX ||
input > ARGON2_MAX_MEMORY_BITS) {
fatal("bad numeric input for -m");
}
m_cost = ARGON2_MIN(UINT64_C(1) << input, UINT32_C(0xFFFFFFFF));
if (m_cost > ARGON2_MAX_MEMORY) {
fatal("m_cost overflow");
}
continue;
} else {
fatal("missing -m argument");
}
} else if (!strcmp(a, "-k")) {
if (m_cost_specified) {
fatal("-m or -k can only be used once");
}
m_cost_specified = 1;
if (i < argc - 1) {
i++;
input = strtoul(argv[i], NULL, 10);
if (input == 0 || input == ULONG_MAX) {
fatal("bad numeric input for -k");
}
m_cost = ARGON2_MIN(input, UINT32_C(0xFFFFFFFF));
if (m_cost > ARGON2_MAX_MEMORY) {
fatal("m_cost overflow");
}
continue;
} else {
fatal("missing -k argument");
}
} else if (!strcmp(a, "-t")) {
if (i < argc - 1) {
i++;
input = strtoul(argv[i], NULL, 10);
if (input == 0 || input == ULONG_MAX ||
input > ARGON2_MAX_TIME) {
fatal("bad numeric input for -t");
}
t_cost = input;
continue;
} else {
fatal("missing -t argument");
}
} else if (!strcmp(a, "-p")) {
if (i < argc - 1) {
i++;
input = strtoul(argv[i], NULL, 10);
if (input == 0 || input == ULONG_MAX ||
input > ARGON2_MAX_THREADS || input > ARGON2_MAX_LANES) {
fatal("bad numeric input for -p");
}
threads = input;
lanes = threads;
continue;
} else {
fatal("missing -p argument");
}
} else if (!strcmp(a, "-l")) {
if (i < argc - 1) {
i++;
input = strtoul(argv[i], NULL, 10);
outlen = input;
continue;
} else {
fatal("missing -l argument");
}
} else if (!strcmp(a, "-i")) {
type = Argon2_i;
++types_specified;
} else if (!strcmp(a, "-d")) {
type = Argon2_d;
++types_specified;
} else if (!strcmp(a, "-id")) {
type = Argon2_id;
++types_specified;
} else if (!strcmp(a, "-u")) {
type = Argon2_u;
++types_specified;
} else if (!strcmp(a, "-e")) {
encoded_only = 1;
} else if (!strcmp(a, "-r")) {
raw_only = 1;
} else if (!strcmp(a, "-v")) {
if (i < argc - 1) {
i++;
if (!strcmp(argv[i], "10")) {
version = ARGON2_VERSION_10;
} else if (!strcmp(argv[i], "13")) {
version = ARGON2_VERSION_13;
} else {
fatal("invalid Argon2 version");
}
} else {
fatal("missing -v argument");
}
} else {
fatal("unknown argument");
}
}
if (types_specified > 1) {
fatal("cannot specify multiple Argon2 types");
}
if(encoded_only && raw_only)
fatal("cannot provide both -e and -r");
if(!encoded_only && !raw_only) {
printf("Type:\t\t%s\n", argon2_type2string(type, 1));
printf("Iterations:\t%u\n", t_cost);
printf("Memory:\t\t%u KiB\n", m_cost);
printf("Parallelism:\t%u\n", lanes);
}
run(outlen, pwd, pwdlen, salt, t_cost, m_cost, lanes, threads, type,
encoded_only, raw_only, version);
return ARGON2_OK;
}

253
rust/ares/src/urcrypt/argon2/src/test.c
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@ -1,253 +0,0 @@
/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <assert.h>
#include "argon2.h"
#define OUT_LEN 32
#define ENCODED_LEN 108
/* Test harness will assert:
* argon2_hash() returns ARGON2_OK
* HEX output matches expected
* encoded output matches expected
* argon2_verify() correctly verifies value
*/
void hashtest(uint32_t version, uint32_t t, uint32_t m, uint32_t p, char *pwd,
char *salt, char *hexref, char *mcfref) {
unsigned char out[OUT_LEN];
unsigned char hex_out[OUT_LEN * 2 + 4];
char encoded[ENCODED_LEN];
int ret, i;
printf("Hash test: $v=%d t=%d, m=%d, p=%d, pass=%s, salt=%s: ", version,
t, m, p, pwd, salt);
ret = argon2_hash(t, 1 << m, p, pwd, strlen(pwd), salt, strlen(salt), out,
OUT_LEN, encoded, ENCODED_LEN, Argon2_i, version);
assert(ret == ARGON2_OK);
for (i = 0; i < OUT_LEN; ++i)
sprintf((char *)(hex_out + i * 2), "%02x", out[i]);
assert(memcmp(hex_out, hexref, OUT_LEN * 2) == 0);
if (ARGON2_VERSION_NUMBER == version) {
assert(memcmp(encoded, mcfref, strlen(mcfref)) == 0);
}
ret = argon2_verify(encoded, pwd, strlen(pwd), Argon2_i);
assert(ret == ARGON2_OK);
ret = argon2_verify(mcfref, pwd, strlen(pwd), Argon2_i);
assert(ret == ARGON2_OK);
printf("PASS\n");
}
int main() {
int ret;
unsigned char out[OUT_LEN];
char const *msg;
int version;
version = ARGON2_VERSION_10;
printf("Test Argon2i version number: %02x\n", version);
/* Multiple test cases for various input values */
hashtest(version, 2, 16, 1, "password", "somesalt",
"f6c4db4a54e2a370627aff3db6176b94a2a209a62c8e36152711802f7b30c694",
"$argon2i$m=65536,t=2,p=1$c29tZXNhbHQ"
"$9sTbSlTio3Biev89thdrlKKiCaYsjjYVJxGAL3swxpQ");
#ifdef TEST_LARGE_RAM
hashtest(version, 2, 20, 1, "password", "somesalt",
"9690ec55d28d3ed32562f2e73ea62b02b018757643a2ae6e79528459de8106e9",
"$argon2i$m=1048576,t=2,p=1$c29tZXNhbHQ"
"$lpDsVdKNPtMlYvLnPqYrArAYdXZDoq5ueVKEWd6BBuk");
#endif
hashtest(version, 2, 18, 1, "password", "somesalt",
"3e689aaa3d28a77cf2bc72a51ac53166761751182f1ee292e3f677a7da4c2467",
"$argon2i$m=262144,t=2,p=1$c29tZXNhbHQ"
"$Pmiaqj0op3zyvHKlGsUxZnYXURgvHuKS4/Z3p9pMJGc");
hashtest(version, 2, 8, 1, "password", "somesalt",
"fd4dd83d762c49bdeaf57c47bdcd0c2f1babf863fdeb490df63ede9975fccf06",
"$argon2i$m=256,t=2,p=1$c29tZXNhbHQ"
"$/U3YPXYsSb3q9XxHvc0MLxur+GP960kN9j7emXX8zwY");
hashtest(version, 2, 8, 2, "password", "somesalt",
"b6c11560a6a9d61eac706b79a2f97d68b4463aa3ad87e00c07e2b01e90c564fb",
"$argon2i$m=256,t=2,p=2$c29tZXNhbHQ"
"$tsEVYKap1h6scGt5ovl9aLRGOqOth+AMB+KwHpDFZPs");
hashtest(version, 1, 16, 1, "password", "somesalt",
"81630552b8f3b1f48cdb1992c4c678643d490b2b5eb4ff6c4b3438b5621724b2",
"$argon2i$m=65536,t=1,p=1$c29tZXNhbHQ"
"$gWMFUrjzsfSM2xmSxMZ4ZD1JCytetP9sSzQ4tWIXJLI");
hashtest(version, 4, 16, 1, "password", "somesalt",
"f212f01615e6eb5d74734dc3ef40ade2d51d052468d8c69440a3a1f2c1c2847b",
"$argon2i$m=65536,t=4,p=1$c29tZXNhbHQ"
"$8hLwFhXm6110c03D70Ct4tUdBSRo2MaUQKOh8sHChHs");
hashtest(version, 2, 16, 1, "differentpassword", "somesalt",
"e9c902074b6754531a3a0be519e5baf404b30ce69b3f01ac3bf21229960109a3",
"$argon2i$m=65536,t=2,p=1$c29tZXNhbHQ"
"$6ckCB0tnVFMaOgvlGeW69ASzDOabPwGsO/ISKZYBCaM");
hashtest(version, 2, 16, 1, "password", "diffsalt",
"79a103b90fe8aef8570cb31fc8b22259778916f8336b7bdac3892569d4f1c497",
"$argon2i$m=65536,t=2,p=1$ZGlmZnNhbHQ"
"$eaEDuQ/orvhXDLMfyLIiWXeJFvgza3vaw4kladTxxJc");
/* Error state tests */
/* Handle an invalid encoding correctly (it is missing a $) */
ret = argon2_verify("$argon2i$m=65536,t=2,p=1c29tZXNhbHQ"
"$9sTbSlTio3Biev89thdrlKKiCaYsjjYVJxGAL3swxpQ",
"password", strlen("password"), Argon2_i);
assert(ret == ARGON2_DECODING_FAIL);
printf("Recognise an invalid encoding: PASS\n");
/* Handle an invalid encoding correctly (it is missing a $) */
ret = argon2_verify("$argon2i$m=65536,t=2,p=1$c29tZXNhbHQ"
"9sTbSlTio3Biev89thdrlKKiCaYsjjYVJxGAL3swxpQ",
"password", strlen("password"), Argon2_i);
assert(ret == ARGON2_DECODING_FAIL);
printf("Recognise an invalid encoding: PASS\n");
/* Handle an invalid encoding correctly (salt is too short) */
ret = argon2_verify("$argon2i$m=65536,t=2,p=1$"
"$9sTbSlTio3Biev89thdrlKKiCaYsjjYVJxGAL3swxpQ",
"password", strlen("password"), Argon2_i);
assert(ret == ARGON2_SALT_TOO_SHORT);
printf("Recognise an invalid salt in encoding: PASS\n");
/* Handle an mismatching hash (the encoded password is "passwore") */
ret = argon2_verify("$argon2i$m=65536,t=2,p=1$c29tZXNhbHQ"
"$b2G3seW+uPzerwQQC+/E1K50CLLO7YXy0JRcaTuswRo",
"password", strlen("password"), Argon2_i);
assert(ret == ARGON2_VERIFY_MISMATCH);
printf("Verify with mismatched password: PASS\n");
msg = argon2_error_message(ARGON2_DECODING_FAIL);
assert(strcmp(msg, "Decoding failed") == 0);
printf("Decode an error message: PASS\n");
printf("\n");
version = ARGON2_VERSION_NUMBER;
printf("Test Argon2i version number: %02x\n", version);
/* Multiple test cases for various input values */
hashtest(version, 2, 16, 1, "password", "somesalt",
"c1628832147d9720c5bd1cfd61367078729f6dfb6f8fea9ff98158e0d7816ed0",
"$argon2i$v=19$m=65536,t=2,p=1$c29tZXNhbHQ"
"$wWKIMhR9lyDFvRz9YTZweHKfbftvj+qf+YFY4NeBbtA");
#ifdef TEST_LARGE_RAM
hashtest(version, 2, 20, 1, "password", "somesalt",
"d1587aca0922c3b5d6a83edab31bee3c4ebaef342ed6127a55d19b2351ad1f41",
"$argon2i$v=19$m=1048576,t=2,p=1$c29tZXNhbHQ"
"$0Vh6ygkiw7XWqD7asxvuPE667zQu1hJ6VdGbI1GtH0E");
#endif
hashtest(version, 2, 18, 1, "password", "somesalt",
"296dbae80b807cdceaad44ae741b506f14db0959267b183b118f9b24229bc7cb",
"$argon2i$v=19$m=262144,t=2,p=1$c29tZXNhbHQ"
"$KW266AuAfNzqrUSudBtQbxTbCVkmexg7EY+bJCKbx8s");
hashtest(version, 2, 8, 1, "password", "somesalt",
"89e9029f4637b295beb027056a7336c414fadd43f6b208645281cb214a56452f",
"$argon2i$v=19$m=256,t=2,p=1$c29tZXNhbHQ"
"$iekCn0Y3spW+sCcFanM2xBT63UP2sghkUoHLIUpWRS8");
hashtest(version, 2, 8, 2, "password", "somesalt",
"4ff5ce2769a1d7f4c8a491df09d41a9fbe90e5eb02155a13e4c01e20cd4eab61",
"$argon2i$v=19$m=256,t=2,p=2$c29tZXNhbHQ"
"$T/XOJ2mh1/TIpJHfCdQan76Q5esCFVoT5MAeIM1Oq2E");
hashtest(version, 1, 16, 1, "password", "somesalt",
"d168075c4d985e13ebeae560cf8b94c3b5d8a16c51916b6f4ac2da3ac11bbecf",
"$argon2i$v=19$m=65536,t=1,p=1$c29tZXNhbHQ"
"$0WgHXE2YXhPr6uVgz4uUw7XYoWxRkWtvSsLaOsEbvs8");
hashtest(version, 4, 16, 1, "password", "somesalt",
"aaa953d58af3706ce3df1aefd4a64a84e31d7f54175231f1285259f88174ce5b",
"$argon2i$v=19$m=65536,t=4,p=1$c29tZXNhbHQ"
"$qqlT1YrzcGzj3xrv1KZKhOMdf1QXUjHxKFJZ+IF0zls");
hashtest(version, 2, 16, 1, "differentpassword", "somesalt",
"14ae8da01afea8700c2358dcef7c5358d9021282bd88663a4562f59fb74d22ee",
"$argon2i$v=19$m=65536,t=2,p=1$c29tZXNhbHQ"
"$FK6NoBr+qHAMI1jc73xTWNkCEoK9iGY6RWL1n7dNIu4");
hashtest(version, 2, 16, 1, "password", "diffsalt",
"b0357cccfbef91f3860b0dba447b2348cbefecadaf990abfe9cc40726c521271",
"$argon2i$v=19$m=65536,t=2,p=1$ZGlmZnNhbHQ"
"$sDV8zPvvkfOGCw26RHsjSMvv7K2vmQq/6cxAcmxSEnE");
/* Error state tests */
/* Handle an invalid encoding correctly (it is missing a $) */
ret = argon2_verify("$argon2i$v=19$m=65536,t=2,p=1c29tZXNhbHQ"
"$wWKIMhR9lyDFvRz9YTZweHKfbftvj+qf+YFY4NeBbtA",
"password", strlen("password"), Argon2_i);
assert(ret == ARGON2_DECODING_FAIL);
printf("Recognise an invalid encoding: PASS\n");
/* Handle an invalid encoding correctly (it is missing a $) */
ret = argon2_verify("$argon2i$v=19$m=65536,t=2,p=1$c29tZXNhbHQ"
"wWKIMhR9lyDFvRz9YTZweHKfbftvj+qf+YFY4NeBbtA",
"password", strlen("password"), Argon2_i);
assert(ret == ARGON2_DECODING_FAIL);
printf("Recognise an invalid encoding: PASS\n");
/* Handle an invalid encoding correctly (salt is too short) */
ret = argon2_verify("$argon2i$v=19$m=65536,t=2,p=1$"
"$9sTbSlTio3Biev89thdrlKKiCaYsjjYVJxGAL3swxpQ",
"password", strlen("password"), Argon2_i);
assert(ret == ARGON2_SALT_TOO_SHORT);
printf("Recognise an invalid salt in encoding: PASS\n");
/* Handle an mismatching hash (the encoded password is "passwore") */
ret = argon2_verify("$argon2i$v=19$m=65536,t=2,p=1$c29tZXNhbHQ"
"$8iIuixkI73Js3G1uMbezQXD0b8LG4SXGsOwoQkdAQIM",
"password", strlen("password"), Argon2_i);
assert(ret == ARGON2_VERIFY_MISMATCH);
printf("Verify with mismatched password: PASS\n");
msg = argon2_error_message(ARGON2_DECODING_FAIL);
assert(strcmp(msg, "Decoding failed") == 0);
printf("Decode an error message: PASS\n");
/* Common error state tests */
printf("\n");
printf("Common error state tests\n");
ret = argon2_hash(2, 1, 1, "password", strlen("password"),
"diffsalt", strlen("diffsalt"),
out, OUT_LEN, NULL, 0, Argon2_i, version);
assert(ret == ARGON2_MEMORY_TOO_LITTLE);
printf("Fail on invalid memory: PASS\n");
ret = argon2_hash(2, 1 << 12, 1, NULL, strlen("password"),
"diffsalt", strlen("diffsalt"),
out, OUT_LEN, NULL, 0, Argon2_i, version);
assert(ret == ARGON2_PWD_PTR_MISMATCH);
printf("Fail on invalid null pointer: PASS\n");
ret = argon2_hash(2, 1 << 12, 1, "password", strlen("password"), "s", 1,
out, OUT_LEN, NULL, 0, Argon2_i, version);
assert(ret == ARGON2_SALT_TOO_SHORT);
printf("Fail on salt too short: PASS\n");
return 0;
}

57
rust/ares/src/urcrypt/argon2/src/thread.c
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@ -1,57 +0,0 @@
/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#if !defined(ARGON2_NO_THREADS)
#include "thread.h"
#if defined(_WIN32)
#include <windows.h>
#endif
int argon2_thread_create(argon2_thread_handle_t *handle,
argon2_thread_func_t func, void *args) {
if (NULL == handle || func == NULL) {
return -1;
}
#if defined(_WIN32)
*handle = _beginthreadex(NULL, 0, func, args, 0, NULL);
return *handle != 0 ? 0 : -1;
#else
return pthread_create(handle, NULL, func, args);
#endif
}
int argon2_thread_join(argon2_thread_handle_t handle) {
#if defined(_WIN32)
if (WaitForSingleObject((HANDLE)handle, INFINITE) == WAIT_OBJECT_0) {
return CloseHandle((HANDLE)handle) != 0 ? 0 : -1;
}
return -1;
#else
return pthread_join(handle, NULL);
#endif
}
void argon2_thread_exit(void) {
#if defined(_WIN32)
_endthreadex(0);
#else
pthread_exit(NULL);
#endif
}
#endif /* ARGON2_NO_THREADS */

67
rust/ares/src/urcrypt/argon2/src/thread.h
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@ -1,67 +0,0 @@
/*
* Argon2 reference source code package - reference C implementations
*
* Copyright 2015
* Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
*
* You may use this work under the terms of a Creative Commons CC0 1.0
* License/Waiver or the Apache Public License 2.0, at your option. The terms of
* these licenses can be found at:
*
* - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
* - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
*
* You should have received a copy of both of these licenses along with this
* software. If not, they may be obtained at the above URLs.
*/
#ifndef ARGON2_THREAD_H
#define ARGON2_THREAD_H
#if !defined(ARGON2_NO_THREADS)
/*
Here we implement an abstraction layer for the simpĺe requirements
of the Argon2 code. We only require 3 primitives---thread creation,
joining, and termination---so full emulation of the pthreads API
is unwarranted. Currently we wrap pthreads and Win32 threads.
The API defines 2 types: the function pointer type,
argon2_thread_func_t,
and the type of the thread handle---argon2_thread_handle_t.
*/
#if defined(_WIN32)
#include <process.h>
typedef unsigned(__stdcall *argon2_thread_func_t)(void *);
typedef uintptr_t argon2_thread_handle_t;
#else
#include <pthread.h>
typedef void *(*argon2_thread_func_t)(void *);
typedef pthread_t argon2_thread_handle_t;
#endif
/* Creates a thread
* @param handle pointer to a thread handle, which is the output of this
* function. Must not be NULL.
* @param func A function pointer for the thread's entry point. Must not be
* NULL.
* @param args Pointer that is passed as an argument to @func. May be NULL.
* @return 0 if @handle and @func are valid pointers and a thread is successfully
* created.
*/
int argon2_thread_create(argon2_thread_handle_t *handle,
argon2_thread_func_t func, void *args);
/* Waits for a thread to terminate
* @param handle Handle to a thread created with argon2_thread_create.
* @return 0 if @handle is a valid handle, and joining completed successfully.
*/
int argon2_thread_join(argon2_thread_handle_t handle);
/* Terminate the current thread. Must be run inside a thread created by
* argon2_thread_create.
*/
void argon2_thread_exit(void);
#endif /* ARGON2_NO_THREADS */
#endif

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rust/ares/src/urcrypt/autogen.sh
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#!/bin/sh
set -e
autoreconf -if --warnings=all

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rust/ares/src/urcrypt/configure.ac
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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
# There are two versions numbers that must be updated on each public release.
# 1. The libtool version (useful to the linker)
# 2. The semantic version (useful to humans)
# Follow these instructions sequentially for the libtool version:
# 1. If the library source code has changed at all since the last update,
# then increment revision (‘c:r:a’ becomes ‘c:r+1:a’).
# 2. If any interfaces have been added, removed, or changed since the last
# update, increment current, and set revision to 0.
# 3. If any interfaces have been added since the last public release,
# then increment age.
# 4. If any interfaces have been removed or changed since the last public
# release, then set age to 0.
m4_define([urcrypt_lt_current], [0])
m4_define([urcrypt_lt_revision], [0])
m4_define([urcrypt_lt_age], [0])
# The package version uses semantic versioning (semver.org).
# In summary,increment the:
# 1. MAJOR version when you make incompatible API changes,
# 2. MINOR version when you add functionality in a backwards compatible manner, and
# 3. PATCH version when you make backwards compatible bug fixes.
m4_define([urcrypt_sv_major], [0])
m4_define([urcrypt_sv_minor], [1])
m4_define([urcrypt_sv_patch], [0])
# Initialize autoconf
AC_PREREQ([2.69])
AC_INIT([urcrypt], [urcrypt_sv_major.urcrypt_sv_minor.urcrypt_sv_patch])
AC_SUBST([URCRYPT_API_VERSION], [urcrypt_sv_major])
AC_SUBST([URCRYPT_LT_VERSION],
[urcrypt_lt_current:urcrypt_lt_revision:urcrypt_lt_age])
AC_CONFIG_SRCDIR([urcrypt/util.c])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([build-aux/m4])
AC_CANONICAL_HOST
# Initialize automake
AM_INIT_AUTOMAKE([foreign subdir-objects -Wall -Werror])
# Initialize libtool
AM_PROG_AR
LT_INIT
# Initialize pkgconfig
PKG_PROG_PKG_CONFIG
PKG_INSTALLDIR
# Checks for programs
AC_PROG_CC
# Checks for pkg-config capable libraries
PKG_CHECK_MODULES([LIBSECP256K1], [libsecp256k1])
ac_save_CPPFLAGS=$CPPFLAGS
CPPFLAGS="$CPPFLAGS $LIBSECP256K1_CFLAGS"
AC_CHECK_HEADER([secp256k1_recovery.h], [],
[AC_MSG_ERROR([libsecp256k1 must have recovery enabled.])])
AC_CHECK_HEADER([secp256k1_schnorrsig.h], [],
[AC_MSG_ERROR([libsecp256k1 must have Schnorr signatures enabled.])])
CPPFLAGS=$ac_save_CPPFLAGS
PKG_CHECK_MODULES([LIBCRYPTO], [libcrypto])
AS_IF([test "$enable_shared" == "yes"],
[# ensure crypto will be shared for shared object (see README.md)
save_LIBS=$LIBS
save_CFLAGS=$CFLAGS
LIBS="$LIBCRYPTO_LIBS $LIBS"
CFLAGS="$LIBCRYPTO_CFLAGS $CFLAGS"
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <openssl/sha.h>],
[[unsigned char sha[32];
SHA256("hello", 5, sha);]])],
[AC_PROG_GREP
AC_CHECK_TOOL([NM], [nm])
AC_MSG_CHECKING([for shared libcrypto])
AS_IF(
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[AC_MSG_ERROR([unable to link libcrypto.])])
LIBS=$save_LIBS
CFLAGS=$save_CFLAGS])
# Checks for non pkg-config libraries
AC_CHECK_LIB([aes_siv], [AES_SIV_CTX_new],
[AC_SUBST([LIBAES_SIV_LIBS], "-laes_siv")],
[AC_MSG_ERROR([libaes_siv is required.])],
[-lcrypto])
# Checks for header files.
AC_CHECK_HEADERS([limits.h stddef.h stdint.h stdlib.h string.h])
# Checks for typedefs, structures, and compiler characteristics.
AC_CHECK_HEADER_STDBOOL
AC_TYPE_INT32_T
AC_TYPE_INT64_T
AC_TYPE_SIZE_T
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T
AC_TYPE_UINT8_T
# Checks for library functions.
AC_CHECK_FUNCS([memset])
# Checks for CPU architecture, uses SSE instructions if on X86_64
AS_CASE([$host_cpu],
[x86_64], [ARCH=x86_64
AC_MSG_WARN("Architecture x86_64: Building libargon2 with optimizations")],
[ARCH=generic
AC_MSG_WARN("Architecture $host_cpu is not x86_64: Building libargon2 without optimizations")]
)
AC_SUBST([ARCH])
AM_CONDITIONAL([ARCH_X86_64], [test "$ARCH" = 'x86_64'])
AM_CONDITIONAL([ARCH_GENERIC], [test "$ARCH" = 'generic'])
# Finish and output
AC_CONFIG_FILES([Makefile liburcrypt-$URCRYPT_API_VERSION.pc:liburcrypt.pc.in])
AC_OUTPUT

16
rust/ares/src/urcrypt/ed25519/license.txt
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@ -1,16 +0,0 @@
Copyright (c) 2015 Orson Peters <orsonpeters@gmail.com>
This software is provided 'as-is', without any express or implied warranty. In no event will the
authors be held liable for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any purpose, including commercial
applications, and to alter it and redistribute it freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not claim that you wrote the
original software. If you use this software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be misrepresented as
being the original software.
3. This notice may not be removed or altered from any source distribution.

166
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@ -1,166 +0,0 @@
Ed25519
=======
This is a portable implementation of [Ed25519](http://ed25519.cr.yp.to/) based
on the SUPERCOP "ref10" implementation. Additionally there is key exchanging
and scalar addition included to further aid building a PKI using Ed25519. All
code is licensed under the permissive zlib license.
All code is pure ANSI C without any dependencies, except for the random seed
generation which uses standard OS cryptography APIs (`CryptGenRandom` on
Windows, `/dev/urandom` on nix). If you wish to be entirely portable define
`ED25519_NO_SEED`. This disables the `ed25519_create_seed` function, so if your
application requires key generation you must supply your own seeding function
(which is simply a 256 bit (32 byte) cryptographic random number generator).
Performance
-----------
On a Windows machine with an Intel Pentium B970 @ 2.3GHz I got the following
speeds (running on only one a single core):
Seed generation: 64us (15625 per second)
Key generation: 88us (11364 per second)
Message signing (short message): 87us (11494 per second)
Message verifying (short message): 228us (4386 per second)
Scalar addition: 100us (10000 per second)
Key exchange: 220us (4545 per second)
The speeds on other machines may vary. Sign/verify times will be higher with
longer messages. The implementation significantly benefits from 64 bit
architectures, if possible compile as 64 bit.
Usage
-----
Simply add all .c and .h files in the `src/` folder to your project and include
`ed25519.h` in any file you want to use the API. If you prefer to use a shared
library, only copy `ed25519.h` and define `ED25519_DLL` before importing. A
windows DLL is pre-built.
There are no defined types for seeds, private keys, public keys, shared secrets
or signatures. Instead simple `unsigned char` buffers are used with the
following sizes:
```c
unsigned char seed[32];
unsigned char signature[64];
unsigned char public_key[32];
unsigned char private_key[64];
unsigned char scalar[32];
unsigned char shared_secret[32];
```
API
---
```c
int ed25519_create_seed(unsigned char *seed);
```
Creates a 32 byte random seed in `seed` for key generation. `seed` must be a
writable 32 byte buffer. Returns 0 on success, and nonzero on failure.
```c
void ed25519_create_keypair(unsigned char *public_key, unsigned char *private_key,
const unsigned char *seed);
```
Creates a new key pair from the given seed. `public_key` must be a writable 32
byte buffer, `private_key` must be a writable 64 byte buffer and `seed` must be
a 32 byte buffer.
```c
void ed25519_sign(unsigned char *signature,
const unsigned char *message, size_t message_len,
const unsigned char *public_key, const unsigned char *private_key);
```
Creates a signature of the given message with the given key pair. `signature`
must be a writable 64 byte buffer. `message` must have at least `message_len`
bytes to be read.
```c
int ed25519_verify(const unsigned char *signature,
const unsigned char *message, size_t message_len,
const unsigned char *public_key);
```
Verifies the signature on the given message using `public_key`. `signature`
must be a readable 64 byte buffer. `message` must have at least `message_len`
bytes to be read. Returns 1 if the signature matches, 0 otherwise.
```c
void ed25519_add_scalar(unsigned char *public_key, unsigned char *private_key,
const unsigned char *scalar);
```
Adds `scalar` to the given key pair where scalar is a 32 byte buffer (possibly
generated with `ed25519_create_seed`), generating a new key pair. You can
calculate the public key sum without knowing the private key and vice versa by
passing in `NULL` for the key you don't know. This is useful for enforcing
randomness on a key pair by a third party while only knowing the public key,
among other things. Warning: the last bit of the scalar is ignored - if
comparing scalars make sure to clear it with `scalar[31] &= 127`.
```c
void ed25519_key_exchange(unsigned char *shared_secret,
const unsigned char *public_key, const unsigned char *private_key);
```
Performs a key exchange on the given public key and private key, producing a
shared secret. It is recommended to hash the shared secret before using it.
`shared_secret` must be a 32 byte writable buffer where the shared secret will
be stored.
Example
-------
```c
unsigned char seed[32], public_key[32], private_key[64], signature[64];
unsigned char other_public_key[32], other_private_key[64], shared_secret[32];
const unsigned char message[] = "TEST MESSAGE";
/* create a random seed, and a key pair out of that seed */
if (ed25519_create_seed(seed)) {
printf("error while generating seed\n");
exit(1);
}
ed25519_create_keypair(public_key, private_key, seed);
/* create signature on the message with the key pair */
ed25519_sign(signature, message, strlen(message), public_key, private_key);
/* verify the signature */
if (ed25519_verify(signature, message, strlen(message), public_key)) {
printf("valid signature\n");
} else {
printf("invalid signature\n");
}
/* create a dummy keypair to use for a key exchange, normally you'd only have
the public key and receive it through some communication channel */
if (ed25519_create_seed(seed)) {
printf("error while generating seed\n");
exit(1);
}
ed25519_create_keypair(other_public_key, other_private_key, seed);
/* do a key exchange with other_public_key */
ed25519_key_exchange(shared_secret, other_public_key, private_key);
/*
the magic here is that ed25519_key_exchange(shared_secret, public_key,
other_private_key); would result in the same shared_secret
*/
```
License
-------
All code is released under the zlib license. See license.txt for details.

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rust/ares/src/urcrypt/ed25519/src/add_scalar.c
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#include "ed25519.h"
#include "ge.h"
#include "sc.h"
#include "sha512.h"
/* see http://crypto.stackexchange.com/a/6215/4697 */
void ed25519_add_scalar(unsigned char *public_key, unsigned char *private_key, const unsigned char *scalar) {
const unsigned char SC_1[32] = {1}; /* scalar with value 1 */
unsigned char n[32];
ge_p3 nB;
ge_p1p1 A_p1p1;
ge_p3 A;
ge_p3 public_key_unpacked;
ge_cached T;
sha512_context hash;
unsigned char hashbuf[64];
int i;
/* copy the scalar and clear highest bit */
for (i = 0; i < 31; ++i) {
n[i] = scalar[i];
}
n[31] = scalar[31] & 127;
/* private key: a = n + t */
if (private_key) {
sc_muladd(private_key, SC_1, n, private_key);
// https://github.com/orlp/ed25519/issues/3
sha512_init(&hash);
sha512_update(&hash, private_key + 32, 32);
sha512_update(&hash, scalar, 32);
sha512_final(&hash, hashbuf);
for (i = 0; i < 32; ++i) {
private_key[32 + i] = hashbuf[i];
}
}
/* public key: A = nB + T */
if (public_key) {
/* if we know the private key we don't need a point addition, which is faster */
/* using a "timing attack" you could find out wether or not we know the private
key, but this information seems rather useless - if this is important pass
public_key and private_key seperately in 2 function calls */
if (private_key) {
ge_scalarmult_base(&A, private_key);
} else {
/* unpack public key into T */
ge_frombytes_negate_vartime(&public_key_unpacked, public_key);
fe_neg(public_key_unpacked.X, public_key_unpacked.X); /* undo negate */
fe_neg(public_key_unpacked.T, public_key_unpacked.T); /* undo negate */
ge_p3_to_cached(&T, &public_key_unpacked);
/* calculate n*B */
ge_scalarmult_base(&nB, n);
/* A = n*B + T */
ge_add(&A_p1p1, &nB, &T);
ge_p1p1_to_p3(&A, &A_p1p1);
}
/* pack public key */
ge_p3_tobytes(public_key, &A);
}
}

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rust/ares/src/urcrypt/ed25519/src/ed25519.h
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#ifndef ED25519_H
#define ED25519_H
#include <stddef.h>
#if defined(_WIN32)
#if defined(ED25519_BUILD_DLL)
#define ED25519_DECLSPEC __declspec(dllexport)
#elif defined(ED25519_DLL)
#define ED25519_DECLSPEC __declspec(dllimport)
#else
#define ED25519_DECLSPEC
#endif
#else
#define ED25519_DECLSPEC
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifndef ED25519_NO_SEED
int ED25519_DECLSPEC ed25519_create_seed(unsigned char *seed);
#endif
void ED25519_DECLSPEC ed25519_create_keypair(unsigned char *public_key, unsigned char *private_key, const unsigned char *seed);
void ED25519_DECLSPEC ed25519_sign(unsigned char *signature, const unsigned char *message, size_t message_len, const unsigned char *public_key, const unsigned char *private_key);
int ED25519_DECLSPEC ed25519_verify(const unsigned char *signature, const unsigned char *message, size_t message_len, const unsigned char *public_key);
void ED25519_DECLSPEC ed25519_add_scalar(unsigned char *public_key, unsigned char *private_key, const unsigned char *scalar);
void ED25519_DECLSPEC ed25519_key_exchange(unsigned char *shared_secret, const unsigned char *public_key, const unsigned char *private_key);
#ifdef __cplusplus
}
#endif
#endif

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rust/ares/src/urcrypt/ed25519/src/fe.c
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41
rust/ares/src/urcrypt/ed25519/src/fe.h
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#ifndef FE_H
#define FE_H
#include "fixedint.h"
/*
fe means field element.
Here the field is \Z/(2^255-19).
An element t, entries t[0]...t[9], represents the integer
t[0]+2^26 t[1]+2^51 t[2]+2^77 t[3]+2^102 t[4]+...+2^230 t[9].
Bounds on each t[i] vary depending on context.
*/
typedef int32_t fe[10];
void fe_0(fe h);
void fe_1(fe h);
void fe_frombytes(fe h, const unsigned char *s);
void fe_tobytes(unsigned char *s, const fe h);
void fe_copy(fe h, const fe f);
int fe_isnegative(const fe f);
int fe_isnonzero(const fe f);
void fe_cmov(fe f, const fe g, unsigned int b);
void fe_cswap(fe f, fe g, unsigned int b);
void fe_neg(fe h, const fe f);
void fe_add(fe h, const fe f, const fe g);
void fe_invert(fe out, const fe z);
void fe_sq(fe h, const fe f);
void fe_sq2(fe h, const fe f);
void fe_mul(fe h, const fe f, const fe g);
void fe_mul121666(fe h, fe f);
void fe_pow22523(fe out, const fe z);
void fe_sub(fe h, const fe f, const fe g);
#endif

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rust/ares/src/urcrypt/ed25519/src/fixedint.h
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/*
Portable header to provide the 32 and 64 bits type.
Not a compatible replacement for <stdint.h>, do not blindly use it as such.
*/
#if ((defined(__STDC__) && __STDC__ && __STDC_VERSION__ >= 199901L) || (defined(__WATCOMC__) && (defined(_STDINT_H_INCLUDED) || __WATCOMC__ >= 1250)) || (defined(__GNUC__) && (defined(_STDINT_H) || defined(_STDINT_H_) || defined(__UINT_FAST64_TYPE__)) )) && !defined(FIXEDINT_H_INCLUDED)
#include <stdint.h>
#define FIXEDINT_H_INCLUDED
#if defined(__WATCOMC__) && __WATCOMC__ >= 1250 && !defined(UINT64_C)
#include <limits.h>
#define UINT64_C(x) (x + (UINT64_MAX - UINT64_MAX))
#endif
#endif
#ifndef FIXEDINT_H_INCLUDED
#define FIXEDINT_H_INCLUDED
#include <limits.h>
/* (u)int32_t */
#ifndef uint32_t
#if (ULONG_MAX == 0xffffffffUL)
typedef unsigned long uint32_t;
#elif (UINT_MAX == 0xffffffffUL)
typedef unsigned int uint32_t;
#elif (USHRT_MAX == 0xffffffffUL)
typedef unsigned short uint32_t;
#endif
#endif
#ifndef int32_t
#if (LONG_MAX == 0x7fffffffL)
typedef signed long int32_t;
#elif (INT_MAX == 0x7fffffffL)
typedef signed int int32_t;
#elif (SHRT_MAX == 0x7fffffffL)
typedef signed short int32_t;
#endif
#endif
/* (u)int64_t */
#if (defined(__STDC__) && defined(__STDC_VERSION__) && __STDC__ && __STDC_VERSION__ >= 199901L)
typedef long long int64_t;
typedef unsigned long long uint64_t;
#define UINT64_C(v) v ##ULL
#define INT64_C(v) v ##LL
#elif defined(__GNUC__)
__extension__ typedef long long int64_t;
__extension__ typedef unsigned long long uint64_t;
#define UINT64_C(v) v ##ULL
#define INT64_C(v) v ##LL
#elif defined(__MWERKS__) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__APPLE_CC__) || defined(_LONG_LONG) || defined(_CRAYC)
typedef long long int64_t;
typedef unsigned long long uint64_t;
#define UINT64_C(v) v ##ULL
#define INT64_C(v) v ##LL
#elif (defined(__WATCOMC__) && defined(__WATCOM_INT64__)) || (defined(_MSC_VER) && _INTEGRAL_MAX_BITS >= 64) || (defined(__BORLANDC__) && __BORLANDC__ > 0x460) || defined(__alpha) || defined(__DECC)
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;
#define UINT64_C(v) v ##UI64
#define INT64_C(v) v ##I64
#endif
#endif

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rust/ares/src/urcrypt/ed25519/src/ge.c
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#include "ge.h"
#include "precomp_data.h"
/*
r = p + q
*/
void ge_add(ge_p1p1 *r, const ge_p3 *p, const ge_cached *q) {
fe t0;
fe_add(r->X, p->Y, p->X);
fe_sub(r->Y, p->Y, p->X);
fe_mul(r->Z, r->X, q->YplusX);
fe_mul(r->Y, r->Y, q->YminusX);
fe_mul(r->T, q->T2d, p->T);
fe_mul(r->X, p->Z, q->Z);
fe_add(t0, r->X, r->X);
fe_sub(r->X, r->Z, r->Y);
fe_add(r->Y, r->Z, r->Y);
fe_add(r->Z, t0, r->T);
fe_sub(r->T, t0, r->T);
}
static void slide(signed char *r, const unsigned char *a) {
int i;
int b;
int k;
for (i = 0; i < 256; ++i) {
r[i] = 1 & (a[i >> 3] >> (i & 7));
}
for (i = 0; i < 256; ++i)
if (r[i]) {
for (b = 1; b <= 6 && i + b < 256; ++b) {
if (r[i + b]) {
if (r[i] + (r[i + b] << b) <= 15) {
r[i] += r[i + b] << b;
r[i + b] = 0;
} else if (r[i] - (r[i + b] << b) >= -15) {
r[i] -= r[i + b] << b;
for (k = i + b; k < 256; ++k) {
if (!r[k]) {
r[k] = 1;
break;
}
r[k] = 0;
}
} else {
break;
}
}
}
}
}
/*
r = a * A + b * B
where a = a[0]+256*a[1]+...+256^31 a[31].
and b = b[0]+256*b[1]+...+256^31 b[31].
B is the Ed25519 base point (x,4/5) with x positive.
*/
void ge_double_scalarmult_vartime(ge_p2 *r, const unsigned char *a, const ge_p3 *A, const unsigned char *b) {
signed char aslide[256];
signed char bslide[256];
ge_cached Ai[8]; /* A,3A,5A,7A,9A,11A,13A,15A */
ge_p1p1 t;
ge_p3 u;
ge_p3 A2;
int i;
slide(aslide, a);
slide(bslide, b);
ge_p3_to_cached(&Ai[0], A);
ge_p3_dbl(&t, A);
ge_p1p1_to_p3(&A2, &t);
ge_add(&t, &A2, &Ai[0]);
ge_p1p1_to_p3(&u, &t);
ge_p3_to_cached(&Ai[1], &u);
ge_add(&t, &A2, &Ai[1]);
ge_p1p1_to_p3(&u, &t);
ge_p3_to_cached(&Ai[2], &u);
ge_add(&t, &A2, &Ai[2]);
ge_p1p1_to_p3(&u, &t);
ge_p3_to_cached(&Ai[3], &u);
ge_add(&t, &A2, &Ai[3]);
ge_p1p1_to_p3(&u, &t);
ge_p3_to_cached(&Ai[4], &u);
ge_add(&t, &A2, &Ai[4]);
ge_p1p1_to_p3(&u, &t);
ge_p3_to_cached(&Ai[5], &u);
ge_add(&t, &A2, &Ai[5]);
ge_p1p1_to_p3(&u, &t);
ge_p3_to_cached(&Ai[6], &u);
ge_add(&t, &A2, &Ai[6]);
ge_p1p1_to_p3(&u, &t);
ge_p3_to_cached(&Ai[7], &u);
ge_p2_0(r);
for (i = 255; i >= 0; --i) {
if (aslide[i] || bslide[i]) {
break;
}
}
for (; i >= 0; --i) {
ge_p2_dbl(&t, r);
if (aslide[i] > 0) {
ge_p1p1_to_p3(&u, &t);
ge_add(&t, &u, &Ai[aslide[i] / 2]);
} else if (aslide[i] < 0) {
ge_p1p1_to_p3(&u, &t);
ge_sub(&t, &u, &Ai[(-aslide[i]) / 2]);
}
if (bslide[i] > 0) {
ge_p1p1_to_p3(&u, &t);
ge_madd(&t, &u, &Bi[bslide[i] / 2]);
} else if (bslide[i] < 0) {
ge_p1p1_to_p3(&u, &t);
ge_msub(&t, &u, &Bi[(-bslide[i]) / 2]);
}
ge_p1p1_to_p2(r, &t);
}
}
static const fe d = {
-10913610, 13857413, -15372611, 6949391, 114729, -8787816, -6275908, -3247719, -18696448, -12055116
};
static const fe sqrtm1 = {
-32595792, -7943725, 9377950, 3500415, 12389472, -272473, -25146209, -2005654, 326686, 11406482
};
int ge_frombytes_negate_vartime(ge_p3 *h, const unsigned char *s) {
fe u;
fe v;
fe v3;
fe vxx;
fe check;
fe_frombytes(h->Y, s);
fe_1(h->Z);
fe_sq(u, h->Y);
fe_mul(v, u, d);
fe_sub(u, u, h->Z); /* u = y^2-1 */
fe_add(v, v, h->Z); /* v = dy^2+1 */
fe_sq(v3, v);
fe_mul(v3, v3, v); /* v3 = v^3 */
fe_sq(h->X, v3);
fe_mul(h->X, h->X, v);
fe_mul(h->X, h->X, u); /* x = uv^7 */
fe_pow22523(h->X, h->X); /* x = (uv^7)^((q-5)/8) */
fe_mul(h->X, h->X, v3);
fe_mul(h->X, h->X, u); /* x = uv^3(uv^7)^((q-5)/8) */
fe_sq(vxx, h->X);
fe_mul(vxx, vxx, v);
fe_sub(check, vxx, u); /* vx^2-u */
if (fe_isnonzero(check)) {
fe_add(check, vxx, u); /* vx^2+u */
if (fe_isnonzero(check)) {
return -1;
}
fe_mul(h->X, h->X, sqrtm1);
}
if (fe_isnegative(h->X) == (s[31] >> 7)) {
fe_neg(h->X, h->X);
}
fe_mul(h->T, h->X, h->Y);
return 0;
}
/*
r = p + q
*/
void ge_madd(ge_p1p1 *r, const ge_p3 *p, const ge_precomp *q) {
fe t0;
fe_add(r->X, p->Y, p->X);
fe_sub(r->Y, p->Y, p->X);
fe_mul(r->Z, r->X, q->yplusx);
fe_mul(r->Y, r->Y, q->yminusx);
fe_mul(r->T, q->xy2d, p->T);
fe_add(t0, p->Z, p->Z);
fe_sub(r->X, r->Z, r->Y);
fe_add(r->Y, r->Z, r->Y);
fe_add(r->Z, t0, r->T);
fe_sub(r->T, t0, r->T);
}
/*
r = p - q
*/
void ge_msub(ge_p1p1 *r, const ge_p3 *p, const ge_precomp *q) {
fe t0;
fe_add(r->X, p->Y, p->X);
fe_sub(r->Y, p->Y, p->X);
fe_mul(r->Z, r->X, q->yminusx);
fe_mul(r->Y, r->Y, q->yplusx);
fe_mul(r->T, q->xy2d, p->T);
fe_add(t0, p->Z, p->Z);
fe_sub(r->X, r->Z, r->Y);
fe_add(r->Y, r->Z, r->Y);
fe_sub(r->Z, t0, r->T);
fe_add(r->T, t0, r->T);
}
/*
r = p
*/
void ge_p1p1_to_p2(ge_p2 *r, const ge_p1p1 *p) {
fe_mul(r->X, p->X, p->T);
fe_mul(r->Y, p->Y, p->Z);
fe_mul(r->Z, p->Z, p->T);
}
/*
r = p
*/
void ge_p1p1_to_p3(ge_p3 *r, const ge_p1p1 *p) {
fe_mul(r->X, p->X, p->T);
fe_mul(r->Y, p->Y, p->Z);
fe_mul(r->Z, p->Z, p->T);
fe_mul(r->T, p->X, p->Y);
}
void ge_p2_0(ge_p2 *h) {
fe_0(h->X);
fe_1(h->Y);
fe_1(h->Z);
}
/*
r = 2 * p
*/
void ge_p2_dbl(ge_p1p1 *r, const ge_p2 *p) {
fe t0;
fe_sq(r->X, p->X);
fe_sq(r->Z, p->Y);
fe_sq2(r->T, p->Z);
fe_add(r->Y, p->X, p->Y);
fe_sq(t0, r->Y);
fe_add(r->Y, r->Z, r->X);
fe_sub(r->Z, r->Z, r->X);
fe_sub(r->X, t0, r->Y);
fe_sub(r->T, r->T, r->Z);
}
void ge_p3_0(ge_p3 *h) {
fe_0(h->X);
fe_1(h->Y);
fe_1(h->Z);
fe_0(h->T);
}
/*
r = 2 * p
*/
void ge_p3_dbl(ge_p1p1 *r, const ge_p3 *p) {
ge_p2 q;
ge_p3_to_p2(&q, p);
ge_p2_dbl(r, &q);
}
/*
r = p
*/
static const fe d2 = {
-21827239, -5839606, -30745221, 13898782, 229458, 15978800, -12551817, -6495438, 29715968, 9444199
};
void ge_p3_to_cached(ge_cached *r, const ge_p3 *p) {
fe_add(r->YplusX, p->Y, p->X);
fe_sub(r->YminusX, p->Y, p->X);
fe_copy(r->Z, p->Z);
fe_mul(r->T2d, p->T, d2);
}
/*
r = p
*/
void ge_p3_to_p2(ge_p2 *r, const ge_p3 *p) {
fe_copy(r->X, p->X);
fe_copy(r->Y, p->Y);
fe_copy(r->Z, p->Z);
}
void ge_p3_tobytes(unsigned char *s, const ge_p3 *h) {
fe recip;
fe x;
fe y;
fe_invert(recip, h->Z);
fe_mul(x, h->X, recip);
fe_mul(y, h->Y, recip);
fe_tobytes(s, y);
s[31] ^= fe_isnegative(x) << 7;
}
static unsigned char equal(signed char b, signed char c) {
unsigned char ub = b;
unsigned char uc = c;
unsigned char x = ub ^ uc; /* 0: yes; 1..255: no */
uint64_t y = x; /* 0: yes; 1..255: no */
y -= 1; /* large: yes; 0..254: no */
y >>= 63; /* 1: yes; 0: no */
return (unsigned char) y;
}
static unsigned char negative(signed char b) {
uint64_t x = b; /* 18446744073709551361..18446744073709551615: yes; 0..255: no */
x >>= 63; /* 1: yes; 0: no */
return (unsigned char) x;
}
static void cmov(ge_precomp *t, const ge_precomp *u, unsigned char b) {
fe_cmov(t->yplusx, u->yplusx, b);
fe_cmov(t->yminusx, u->yminusx, b);
fe_cmov(t->xy2d, u->xy2d, b);
}
static void select(ge_precomp *t, int pos, signed char b) {
ge_precomp minust;
unsigned char bnegative = negative(b);
unsigned char babs = b - (((-bnegative) & b) << 1);
fe_1(t->yplusx);
fe_1(t->yminusx);
fe_0(t->xy2d);
cmov(t, &base[pos][0], equal(babs, 1));
cmov(t, &base[pos][1], equal(babs, 2));
cmov(t, &base[pos][2], equal(babs, 3));
cmov(t, &base[pos][3], equal(babs, 4));
cmov(t, &base[pos][4], equal(babs, 5));
cmov(t, &base[pos][5], equal(babs, 6));
cmov(t, &base[pos][6], equal(babs, 7));
cmov(t, &base[pos][7], equal(babs, 8));
fe_copy(minust.yplusx, t->yminusx);
fe_copy(minust.yminusx, t->yplusx);
fe_neg(minust.xy2d, t->xy2d);
cmov(t, &minust, bnegative);
}
/*
h = a * B
where a = a[0]+256*a[1]+...+256^31 a[31]
B is the Ed25519 base point (x,4/5) with x positive.
Preconditions:
a[31] <= 127
*/
void ge_scalarmult_base(ge_p3 *h, const unsigned char *a) {
signed char e[64];
signed char carry;
ge_p1p1 r;
ge_p2 s;
ge_precomp t;
int i;
for (i = 0; i < 32; ++i) {
e[2 * i + 0] = (a[i] >> 0) & 15;
e[2 * i + 1] = (a[i] >> 4) & 15;
}
/* each e[i] is between 0 and 15 */
/* e[63] is between 0 and 7 */
carry = 0;
for (i = 0; i < 63; ++i) {
e[i] += carry;
carry = e[i] + 8;
carry >>= 4;
e[i] -= carry << 4;
}
e[63] += carry;
/* each e[i] is between -8 and 8 */
ge_p3_0(h);
for (i = 1; i < 64; i += 2) {
select(&t, i / 2, e[i]);
ge_madd(&r, h, &t);
ge_p1p1_to_p3(h, &r);
}
ge_p3_dbl(&r, h);
ge_p1p1_to_p2(&s, &r);
ge_p2_dbl(&r, &s);
ge_p1p1_to_p2(&s, &r);
ge_p2_dbl(&r, &s);
ge_p1p1_to_p2(&s, &r);
ge_p2_dbl(&r, &s);
ge_p1p1_to_p3(h, &r);
for (i = 0; i < 64; i += 2) {
select(&t, i / 2, e[i]);
ge_madd(&r, h, &t);
ge_p1p1_to_p3(h, &r);
}
}
/*
r = p - q
*/
void ge_sub(ge_p1p1 *r, const ge_p3 *p, const ge_cached *q) {
fe t0;
fe_add(r->X, p->Y, p->X);
fe_sub(r->Y, p->Y, p->X);
fe_mul(r->Z, r->X, q->YminusX);
fe_mul(r->Y, r->Y, q->YplusX);
fe_mul(r->T, q->T2d, p->T);
fe_mul(r->X, p->Z, q->Z);
fe_add(t0, r->X, r->X);
fe_sub(r->X, r->Z, r->Y);
fe_add(r->Y, r->Z, r->Y);
fe_sub(r->Z, t0, r->T);
fe_add(r->T, t0, r->T);
}
void ge_tobytes(unsigned char *s, const ge_p2 *h) {
fe recip;
fe x;
fe y;
fe_invert(recip, h->Z);
fe_mul(x, h->X, recip);
fe_mul(y, h->Y, recip);
fe_tobytes(s, y);
s[31] ^= fe_isnegative(x) << 7;
}

74
rust/ares/src/urcrypt/ed25519/src/ge.h
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#ifndef GE_H
#define GE_H
#include "fe.h"
/*
ge means group element.
Here the group is the set of pairs (x,y) of field elements (see fe.h)
satisfying -x^2 + y^2 = 1 + d x^2y^2
where d = -121665/121666.
Representations:
ge_p2 (projective): (X:Y:Z) satisfying x=X/Z, y=Y/Z
ge_p3 (extended): (X:Y:Z:T) satisfying x=X/Z, y=Y/Z, XY=ZT
ge_p1p1 (completed): ((X:Z),(Y:T)) satisfying x=X/Z, y=Y/T
ge_precomp (Duif): (y+x,y-x,2dxy)
*/
typedef struct {
fe X;
fe Y;
fe Z;
} ge_p2;
typedef struct {
fe X;
fe Y;
fe Z;
fe T;
} ge_p3;
typedef struct {
fe X;
fe Y;
fe Z;
fe T;
} ge_p1p1;
typedef struct {
fe yplusx;
fe yminusx;
fe xy2d;
} ge_precomp;
typedef struct {
fe YplusX;
fe YminusX;
fe Z;
fe T2d;
} ge_cached;
void ge_p3_tobytes(unsigned char *s, const ge_p3 *h);
void ge_tobytes(unsigned char *s, const ge_p2 *h);
int ge_frombytes_negate_vartime(ge_p3 *h, const unsigned char *s);
void ge_add(ge_p1p1 *r, const ge_p3 *p, const ge_cached *q);
void ge_sub(ge_p1p1 *r, const ge_p3 *p, const ge_cached *q);
void ge_double_scalarmult_vartime(ge_p2 *r, const unsigned char *a, const ge_p3 *A, const unsigned char *b);
void ge_madd(ge_p1p1 *r, const ge_p3 *p, const ge_precomp *q);
void ge_msub(ge_p1p1 *r, const ge_p3 *p, const ge_precomp *q);
void ge_scalarmult_base(ge_p3 *h, const unsigned char *a);
void ge_p1p1_to_p2(ge_p2 *r, const ge_p1p1 *p);
void ge_p1p1_to_p3(ge_p3 *r, const ge_p1p1 *p);
void ge_p2_0(ge_p2 *h);
void ge_p2_dbl(ge_p1p1 *r, const ge_p2 *p);
void ge_p3_0(ge_p3 *h);
void ge_p3_dbl(ge_p1p1 *r, const ge_p3 *p);
void ge_p3_to_cached(ge_cached *r, const ge_p3 *p);
void ge_p3_to_p2(ge_p2 *r, const ge_p3 *p);
#endif

79
rust/ares/src/urcrypt/ed25519/src/key_exchange.c
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#include "ed25519.h"
#include "fe.h"
void ed25519_key_exchange(unsigned char *shared_secret, const unsigned char *public_key, const unsigned char *private_key) {
unsigned char e[32];
unsigned int i;
fe x1;
fe x2;
fe z2;
fe x3;
fe z3;
fe tmp0;
fe tmp1;
int pos;
unsigned int swap;
unsigned int b;
/* copy the private key and make sure it's valid */
for (i = 0; i < 32; ++i) {
e[i] = private_key[i];
}
e[0] &= 248;
e[31] &= 63;
e[31] |= 64;
/* unpack the public key and convert edwards to montgomery */
/* due to CodesInChaos: montgomeryX = (edwardsY + 1)*inverse(1 - edwardsY) mod p */
fe_frombytes(x1, public_key);
fe_1(tmp1);
fe_add(tmp0, x1, tmp1);
fe_sub(tmp1, tmp1, x1);
fe_invert(tmp1, tmp1);
fe_mul(x1, tmp0, tmp1);
fe_1(x2);
fe_0(z2);
fe_copy(x3, x1);
fe_1(z3);
swap = 0;
for (pos = 254; pos >= 0; --pos) {
b = e[pos / 8] >> (pos & 7);
b &= 1;
swap ^= b;
fe_cswap(x2, x3, swap);
fe_cswap(z2, z3, swap);
swap = b;
/* from montgomery.h */
fe_sub(tmp0, x3, z3);
fe_sub(tmp1, x2, z2);
fe_add(x2, x2, z2);
fe_add(z2, x3, z3);
fe_mul(z3, tmp0, x2);
fe_mul(z2, z2, tmp1);
fe_sq(tmp0, tmp1);
fe_sq(tmp1, x2);
fe_add(x3, z3, z2);
fe_sub(z2, z3, z2);
fe_mul(x2, tmp1, tmp0);
fe_sub(tmp1, tmp1, tmp0);
fe_sq(z2, z2);
fe_mul121666(z3, tmp1);
fe_sq(x3, x3);
fe_add(tmp0, tmp0, z3);
fe_mul(z3, x1, z2);
fe_mul(z2, tmp1, tmp0);
}
fe_cswap(x2, x3, swap);
fe_cswap(z2, z3, swap);
fe_invert(z2, z2);
fe_mul(x2, x2, z2);
fe_tobytes(shared_secret, x2);
}

16
rust/ares/src/urcrypt/ed25519/src/keypair.c
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#include "ed25519.h"
#include "sha512.h"
#include "ge.h"
void ed25519_create_keypair(unsigned char *public_key, unsigned char *private_key, const unsigned char *seed) {
ge_p3 A;
sha512(seed, 32, private_key);
private_key[0] &= 248;
private_key[31] &= 63;
private_key[31] |= 64;
ge_scalarmult_base(&A, private_key);
ge_p3_tobytes(public_key, &A);
}

1391
rust/ares/src/urcrypt/ed25519/src/precomp_data.h
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809
rust/ares/src/urcrypt/ed25519/src/sc.c
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#include "fixedint.h"
#include "sc.h"
static uint64_t load_3(const unsigned char *in) {
uint64_t result;
result = (uint64_t) in[0];
result |= ((uint64_t) in[1]) << 8;
result |= ((uint64_t) in[2]) << 16;
return result;
}
static uint64_t load_4(const unsigned char *in) {
uint64_t result;
result = (uint64_t) in[0];
result |= ((uint64_t) in[1]) << 8;
result |= ((uint64_t) in[2]) << 16;
result |= ((uint64_t) in[3]) << 24;
return result;
}
/*
Input:
s[0]+256*s[1]+...+256^63*s[63] = s
Output:
s[0]+256*s[1]+...+256^31*s[31] = s mod l
where l = 2^252 + 27742317777372353535851937790883648493.
Overwrites s in place.
*/
void sc_reduce(unsigned char *s) {
int64_t s0 = 2097151 & load_3(s);
int64_t s1 = 2097151 & (load_4(s + 2) >> 5);
int64_t s2 = 2097151 & (load_3(s + 5) >> 2);
int64_t s3 = 2097151 & (load_4(s + 7) >> 7);
int64_t s4 = 2097151 & (load_4(s + 10) >> 4);
int64_t s5 = 2097151 & (load_3(s + 13) >> 1);
int64_t s6 = 2097151 & (load_4(s + 15) >> 6);
int64_t s7 = 2097151 & (load_3(s + 18) >> 3);
int64_t s8 = 2097151 & load_3(s + 21);
int64_t s9 = 2097151 & (load_4(s + 23) >> 5);
int64_t s10 = 2097151 & (load_3(s + 26) >> 2);
int64_t s11 = 2097151 & (load_4(s + 28) >> 7);
int64_t s12 = 2097151 & (load_4(s + 31) >> 4);
int64_t s13 = 2097151 & (load_3(s + 34) >> 1);
int64_t s14 = 2097151 & (load_4(s + 36) >> 6);
int64_t s15 = 2097151 & (load_3(s + 39) >> 3);
int64_t s16 = 2097151 & load_3(s + 42);
int64_t s17 = 2097151 & (load_4(s + 44) >> 5);
int64_t s18 = 2097151 & (load_3(s + 47) >> 2);
int64_t s19 = 2097151 & (load_4(s + 49) >> 7);
int64_t s20 = 2097151 & (load_4(s + 52) >> 4);
int64_t s21 = 2097151 & (load_3(s + 55) >> 1);
int64_t s22 = 2097151 & (load_4(s + 57) >> 6);
int64_t s23 = (load_4(s + 60) >> 3);
int64_t carry0;
int64_t carry1;
int64_t carry2;
int64_t carry3;
int64_t carry4;
int64_t carry5;
int64_t carry6;
int64_t carry7;
int64_t carry8;
int64_t carry9;
int64_t carry10;
int64_t carry11;
int64_t carry12;
int64_t carry13;
int64_t carry14;
int64_t carry15;
int64_t carry16;
s11 += s23 * 666643;
s12 += s23 * 470296;
s13 += s23 * 654183;
s14 -= s23 * 997805;
s15 += s23 * 136657;
s16 -= s23 * 683901;
s23 = 0;
s10 += s22 * 666643;
s11 += s22 * 470296;
s12 += s22 * 654183;
s13 -= s22 * 997805;
s14 += s22 * 136657;
s15 -= s22 * 683901;
s22 = 0;
s9 += s21 * 666643;
s10 += s21 * 470296;
s11 += s21 * 654183;
s12 -= s21 * 997805;
s13 += s21 * 136657;
s14 -= s21 * 683901;
s21 = 0;
s8 += s20 * 666643;
s9 += s20 * 470296;
s10 += s20 * 654183;
s11 -= s20 * 997805;
s12 += s20 * 136657;
s13 -= s20 * 683901;
s20 = 0;
s7 += s19 * 666643;
s8 += s19 * 470296;
s9 += s19 * 654183;
s10 -= s19 * 997805;
s11 += s19 * 136657;
s12 -= s19 * 683901;
s19 = 0;
s6 += s18 * 666643;
s7 += s18 * 470296;
s8 += s18 * 654183;
s9 -= s18 * 997805;
s10 += s18 * 136657;
s11 -= s18 * 683901;
s18 = 0;
carry6 = (s6 + (1 << 20)) >> 21;
s7 += carry6;
s6 -= carry6 << 21;
carry8 = (s8 + (1 << 20)) >> 21;
s9 += carry8;
s8 -= carry8 << 21;
carry10 = (s10 + (1 << 20)) >> 21;
s11 += carry10;
s10 -= carry10 << 21;
carry12 = (s12 + (1 << 20)) >> 21;
s13 += carry12;
s12 -= carry12 << 21;
carry14 = (s14 + (1 << 20)) >> 21;
s15 += carry14;
s14 -= carry14 << 21;
carry16 = (s16 + (1 << 20)) >> 21;
s17 += carry16;
s16 -= carry16 << 21;
carry7 = (s7 + (1 << 20)) >> 21;
s8 += carry7;
s7 -= carry7 << 21;
carry9 = (s9 + (1 << 20)) >> 21;
s10 += carry9;
s9 -= carry9 << 21;
carry11 = (s11 + (1 << 20)) >> 21;
s12 += carry11;
s11 -= carry11 << 21;
carry13 = (s13 + (1 << 20)) >> 21;
s14 += carry13;
s13 -= carry13 << 21;
carry15 = (s15 + (1 << 20)) >> 21;
s16 += carry15;
s15 -= carry15 << 21;
s5 += s17 * 666643;
s6 += s17 * 470296;
s7 += s17 * 654183;
s8 -= s17 * 997805;
s9 += s17 * 136657;
s10 -= s17 * 683901;
s17 = 0;
s4 += s16 * 666643;
s5 += s16 * 470296;
s6 += s16 * 654183;
s7 -= s16 * 997805;
s8 += s16 * 136657;
s9 -= s16 * 683901;
s16 = 0;
s3 += s15 * 666643;
s4 += s15 * 470296;
s5 += s15 * 654183;
s6 -= s15 * 997805;
s7 += s15 * 136657;
s8 -= s15 * 683901;
s15 = 0;
s2 += s14 * 666643;
s3 += s14 * 470296;
s4 += s14 * 654183;
s5 -= s14 * 997805;
s6 += s14 * 136657;
s7 -= s14 * 683901;
s14 = 0;
s1 += s13 * 666643;
s2 += s13 * 470296;
s3 += s13 * 654183;
s4 -= s13 * 997805;
s5 += s13 * 136657;
s6 -= s13 * 683901;
s13 = 0;
s0 += s12 * 666643;
s1 += s12 * 470296;
s2 += s12 * 654183;
s3 -= s12 * 997805;
s4 += s12 * 136657;
s5 -= s12 * 683901;
s12 = 0;
carry0 = (s0 + (1 << 20)) >> 21;
s1 += carry0;
s0 -= carry0 << 21;
carry2 = (s2 + (1 << 20)) >> 21;
s3 += carry2;
s2 -= carry2 << 21;
carry4 = (s4 + (1 << 20)) >> 21;
s5 += carry4;
s4 -= carry4 << 21;
carry6 = (s6 + (1 << 20)) >> 21;
s7 += carry6;
s6 -= carry6 << 21;
carry8 = (s8 + (1 << 20)) >> 21;
s9 += carry8;
s8 -= carry8 << 21;
carry10 = (s10 + (1 << 20)) >> 21;
s11 += carry10;
s10 -= carry10 << 21;
carry1 = (s1 + (1 << 20)) >> 21;
s2 += carry1;
s1 -= carry1 << 21;
carry3 = (s3 + (1 << 20)) >> 21;
s4 += carry3;
s3 -= carry3 << 21;
carry5 = (s5 + (1 << 20)) >> 21;
s6 += carry5;
s5 -= carry5 << 21;
carry7 = (s7 + (1 << 20)) >> 21;
s8 += carry7;
s7 -= carry7 << 21;
carry9 = (s9 + (1 << 20)) >> 21;
s10 += carry9;
s9 -= carry9 << 21;
carry11 = (s11 + (1 << 20)) >> 21;
s12 += carry11;
s11 -= carry11 << 21;
s0 += s12 * 666643;
s1 += s12 * 470296;
s2 += s12 * 654183;
s3 -= s12 * 997805;
s4 += s12 * 136657;
s5 -= s12 * 683901;
s12 = 0;
carry0 = s0 >> 21;
s1 += carry0;
s0 -= carry0 << 21;
carry1 = s1 >> 21;
s2 += carry1;
s1 -= carry1 << 21;
carry2 = s2 >> 21;
s3 += carry2;
s2 -= carry2 << 21;
carry3 = s3 >> 21;
s4 += carry3;
s3 -= carry3 << 21;
carry4 = s4 >> 21;
s5 += carry4;
s4 -= carry4 << 21;
carry5 = s5 >> 21;
s6 += carry5;
s5 -= carry5 << 21;
carry6 = s6 >> 21;
s7 += carry6;
s6 -= carry6 << 21;
carry7 = s7 >> 21;
s8 += carry7;
s7 -= carry7 << 21;
carry8 = s8 >> 21;
s9 += carry8;
s8 -= carry8 << 21;
carry9 = s9 >> 21;
s10 += carry9;
s9 -= carry9 << 21;
carry10 = s10 >> 21;
s11 += carry10;
s10 -= carry10 << 21;
carry11 = s11 >> 21;
s12 += carry11;
s11 -= carry11 << 21;
s0 += s12 * 666643;
s1 += s12 * 470296;
s2 += s12 * 654183;
s3 -= s12 * 997805;
s4 += s12 * 136657;
s5 -= s12 * 683901;
s12 = 0;
carry0 = s0 >> 21;
s1 += carry0;
s0 -= carry0 << 21;
carry1 = s1 >> 21;
s2 += carry1;
s1 -= carry1 << 21;
carry2 = s2 >> 21;
s3 += carry2;
s2 -= carry2 << 21;
carry3 = s3 >> 21;
s4 += carry3;
s3 -= carry3 << 21;
carry4 = s4 >> 21;
s5 += carry4;
s4 -= carry4 << 21;
carry5 = s5 >> 21;
s6 += carry5;
s5 -= carry5 << 21;
carry6 = s6 >> 21;
s7 += carry6;
s6 -= carry6 << 21;
carry7 = s7 >> 21;
s8 += carry7;
s7 -= carry7 << 21;
carry8 = s8 >> 21;
s9 += carry8;
s8 -= carry8 << 21;
carry9 = s9 >> 21;
s10 += carry9;
s9 -= carry9 << 21;
carry10 = s10 >> 21;
s11 += carry10;
s10 -= carry10 << 21;
s[0] = (unsigned char) (s0 >> 0);
s[1] = (unsigned char) (s0 >> 8);
s[2] = (unsigned char) ((s0 >> 16) | (s1 << 5));
s[3] = (unsigned char) (s1 >> 3);
s[4] = (unsigned char) (s1 >> 11);
s[5] = (unsigned char) ((s1 >> 19) | (s2 << 2));
s[6] = (unsigned char) (s2 >> 6);
s[7] = (unsigned char) ((s2 >> 14) | (s3 << 7));
s[8] = (unsigned char) (s3 >> 1);
s[9] = (unsigned char) (s3 >> 9);
s[10] = (unsigned char) ((s3 >> 17) | (s4 << 4));
s[11] = (unsigned char) (s4 >> 4);
s[12] = (unsigned char) (s4 >> 12);
s[13] = (unsigned char) ((s4 >> 20) | (s5 << 1));
s[14] = (unsigned char) (s5 >> 7);
s[15] = (unsigned char) ((s5 >> 15) | (s6 << 6));
s[16] = (unsigned char) (s6 >> 2);
s[17] = (unsigned char) (s6 >> 10);
s[18] = (unsigned char) ((s6 >> 18) | (s7 << 3));
s[19] = (unsigned char) (s7 >> 5);
s[20] = (unsigned char) (s7 >> 13);
s[21] = (unsigned char) (s8 >> 0);
s[22] = (unsigned char) (s8 >> 8);
s[23] = (unsigned char) ((s8 >> 16) | (s9 << 5));
s[24] = (unsigned char) (s9 >> 3);
s[25] = (unsigned char) (s9 >> 11);
s[26] = (unsigned char) ((s9 >> 19) | (s10 << 2));
s[27] = (unsigned char) (s10 >> 6);
s[28] = (unsigned char) ((s10 >> 14) | (s11 << 7));
s[29] = (unsigned char) (s11 >> 1);
s[30] = (unsigned char) (s11 >> 9);
s[31] = (unsigned char) (s11 >> 17);
}
/*
Input:
a[0]+256*a[1]+...+256^31*a[31] = a
b[0]+256*b[1]+...+256^31*b[31] = b
c[0]+256*c[1]+...+256^31*c[31] = c
Output:
s[0]+256*s[1]+...+256^31*s[31] = (ab+c) mod l
where l = 2^252 + 27742317777372353535851937790883648493.
*/
void sc_muladd(unsigned char *s, const unsigned char *a, const unsigned char *b, const unsigned char *c) {
int64_t a0 = 2097151 & load_3(a);
int64_t a1 = 2097151 & (load_4(a + 2) >> 5);
int64_t a2 = 2097151 & (load_3(a + 5) >> 2);
int64_t a3 = 2097151 & (load_4(a + 7) >> 7);
int64_t a4 = 2097151 & (load_4(a + 10) >> 4);
int64_t a5 = 2097151 & (load_3(a + 13) >> 1);
int64_t a6 = 2097151 & (load_4(a + 15) >> 6);
int64_t a7 = 2097151 & (load_3(a + 18) >> 3);
int64_t a8 = 2097151 & load_3(a + 21);
int64_t a9 = 2097151 & (load_4(a + 23) >> 5);
int64_t a10 = 2097151 & (load_3(a + 26) >> 2);
int64_t a11 = (load_4(a + 28) >> 7);
int64_t b0 = 2097151 & load_3(b);
int64_t b1 = 2097151 & (load_4(b + 2) >> 5);
int64_t b2 = 2097151 & (load_3(b + 5) >> 2);
int64_t b3 = 2097151 & (load_4(b + 7) >> 7);
int64_t b4 = 2097151 & (load_4(b + 10) >> 4);
int64_t b5 = 2097151 & (load_3(b + 13) >> 1);
int64_t b6 = 2097151 & (load_4(b + 15) >> 6);
int64_t b7 = 2097151 & (load_3(b + 18) >> 3);
int64_t b8 = 2097151 & load_3(b + 21);
int64_t b9 = 2097151 & (load_4(b + 23) >> 5);
int64_t b10 = 2097151 & (load_3(b + 26) >> 2);
int64_t b11 = (load_4(b + 28) >> 7);
int64_t c0 = 2097151 & load_3(c);
int64_t c1 = 2097151 & (load_4(c + 2) >> 5);
int64_t c2 = 2097151 & (load_3(c + 5) >> 2);
int64_t c3 = 2097151 & (load_4(c + 7) >> 7);
int64_t c4 = 2097151 & (load_4(c + 10) >> 4);
int64_t c5 = 2097151 & (load_3(c + 13) >> 1);
int64_t c6 = 2097151 & (load_4(c + 15) >> 6);
int64_t c7 = 2097151 & (load_3(c + 18) >> 3);
int64_t c8 = 2097151 & load_3(c + 21);
int64_t c9 = 2097151 & (load_4(c + 23) >> 5);
int64_t c10 = 2097151 & (load_3(c + 26) >> 2);
int64_t c11 = (load_4(c + 28) >> 7);
int64_t s0;
int64_t s1;
int64_t s2;
int64_t s3;
int64_t s4;
int64_t s5;
int64_t s6;
int64_t s7;
int64_t s8;
int64_t s9;
int64_t s10;
int64_t s11;
int64_t s12;
int64_t s13;
int64_t s14;
int64_t s15;
int64_t s16;
int64_t s17;
int64_t s18;
int64_t s19;
int64_t s20;
int64_t s21;
int64_t s22;
int64_t s23;
int64_t carry0;
int64_t carry1;
int64_t carry2;
int64_t carry3;
int64_t carry4;
int64_t carry5;
int64_t carry6;
int64_t carry7;
int64_t carry8;
int64_t carry9;
int64_t carry10;
int64_t carry11;
int64_t carry12;
int64_t carry13;
int64_t carry14;
int64_t carry15;
int64_t carry16;
int64_t carry17;
int64_t carry18;
int64_t carry19;
int64_t carry20;
int64_t carry21;
int64_t carry22;
s0 = c0 + a0 * b0;
s1 = c1 + a0 * b1 + a1 * b0;
s2 = c2 + a0 * b2 + a1 * b1 + a2 * b0;
s3 = c3 + a0 * b3 + a1 * b2 + a2 * b1 + a3 * b0;
s4 = c4 + a0 * b4 + a1 * b3 + a2 * b2 + a3 * b1 + a4 * b0;
s5 = c5 + a0 * b5 + a1 * b4 + a2 * b3 + a3 * b2 + a4 * b1 + a5 * b0;
s6 = c6 + a0 * b6 + a1 * b5 + a2 * b4 + a3 * b3 + a4 * b2 + a5 * b1 + a6 * b0;
s7 = c7 + a0 * b7 + a1 * b6 + a2 * b5 + a3 * b4 + a4 * b3 + a5 * b2 + a6 * b1 + a7 * b0;
s8 = c8 + a0 * b8 + a1 * b7 + a2 * b6 + a3 * b5 + a4 * b4 + a5 * b3 + a6 * b2 + a7 * b1 + a8 * b0;
s9 = c9 + a0 * b9 + a1 * b8 + a2 * b7 + a3 * b6 + a4 * b5 + a5 * b4 + a6 * b3 + a7 * b2 + a8 * b1 + a9 * b0;
s10 = c10 + a0 * b10 + a1 * b9 + a2 * b8 + a3 * b7 + a4 * b6 + a5 * b5 + a6 * b4 + a7 * b3 + a8 * b2 + a9 * b1 + a10 * b0;
s11 = c11 + a0 * b11 + a1 * b10 + a2 * b9 + a3 * b8 + a4 * b7 + a5 * b6 + a6 * b5 + a7 * b4 + a8 * b3 + a9 * b2 + a10 * b1 + a11 * b0;
s12 = a1 * b11 + a2 * b10 + a3 * b9 + a4 * b8 + a5 * b7 + a6 * b6 + a7 * b5 + a8 * b4 + a9 * b3 + a10 * b2 + a11 * b1;
s13 = a2 * b11 + a3 * b10 + a4 * b9 + a5 * b8 + a6 * b7 + a7 * b6 + a8 * b5 + a9 * b4 + a10 * b3 + a11 * b2;
s14 = a3 * b11 + a4 * b10 + a5 * b9 + a6 * b8 + a7 * b7 + a8 * b6 + a9 * b5 + a10 * b4 + a11 * b3;
s15 = a4 * b11 + a5 * b10 + a6 * b9 + a7 * b8 + a8 * b7 + a9 * b6 + a10 * b5 + a11 * b4;
s16 = a5 * b11 + a6 * b10 + a7 * b9 + a8 * b8 + a9 * b7 + a10 * b6 + a11 * b5;
s17 = a6 * b11 + a7 * b10 + a8 * b9 + a9 * b8 + a10 * b7 + a11 * b6;
s18 = a7 * b11 + a8 * b10 + a9 * b9 + a10 * b8 + a11 * b7;
s19 = a8 * b11 + a9 * b10 + a10 * b9 + a11 * b8;
s20 = a9 * b11 + a10 * b10 + a11 * b9;
s21 = a10 * b11 + a11 * b10;
s22 = a11 * b11;
s23 = 0;
carry0 = (s0 + (1 << 20)) >> 21;
s1 += carry0;
s0 -= carry0 << 21;
carry2 = (s2 + (1 << 20)) >> 21;
s3 += carry2;
s2 -= carry2 << 21;
carry4 = (s4 + (1 << 20)) >> 21;
s5 += carry4;
s4 -= carry4 << 21;
carry6 = (s6 + (1 << 20)) >> 21;
s7 += carry6;
s6 -= carry6 << 21;
carry8 = (s8 + (1 << 20)) >> 21;
s9 += carry8;
s8 -= carry8 << 21;
carry10 = (s10 + (1 << 20)) >> 21;
s11 += carry10;
s10 -= carry10 << 21;
carry12 = (s12 + (1 << 20)) >> 21;
s13 += carry12;
s12 -= carry12 << 21;
carry14 = (s14 + (1 << 20)) >> 21;
s15 += carry14;
s14 -= carry14 << 21;
carry16 = (s16 + (1 << 20)) >> 21;
s17 += carry16;
s16 -= carry16 << 21;
carry18 = (s18 + (1 << 20)) >> 21;
s19 += carry18;
s18 -= carry18 << 21;
carry20 = (s20 + (1 << 20)) >> 21;
s21 += carry20;
s20 -= carry20 << 21;
carry22 = (s22 + (1 << 20)) >> 21;
s23 += carry22;
s22 -= carry22 << 21;
carry1 = (s1 + (1 << 20)) >> 21;
s2 += carry1;
s1 -= carry1 << 21;
carry3 = (s3 + (1 << 20)) >> 21;
s4 += carry3;
s3 -= carry3 << 21;
carry5 = (s5 + (1 << 20)) >> 21;
s6 += carry5;
s5 -= carry5 << 21;
carry7 = (s7 + (1 << 20)) >> 21;
s8 += carry7;
s7 -= carry7 << 21;
carry9 = (s9 + (1 << 20)) >> 21;
s10 += carry9;
s9 -= carry9 << 21;
carry11 = (s11 + (1 << 20)) >> 21;
s12 += carry11;
s11 -= carry11 << 21;
carry13 = (s13 + (1 << 20)) >> 21;
s14 += carry13;
s13 -= carry13 << 21;
carry15 = (s15 + (1 << 20)) >> 21;
s16 += carry15;
s15 -= carry15 << 21;
carry17 = (s17 + (1 << 20)) >> 21;
s18 += carry17;
s17 -= carry17 << 21;
carry19 = (s19 + (1 << 20)) >> 21;
s20 += carry19;
s19 -= carry19 << 21;
carry21 = (s21 + (1 << 20)) >> 21;
s22 += carry21;
s21 -= carry21 << 21;
s11 += s23 * 666643;
s12 += s23 * 470296;
s13 += s23 * 654183;
s14 -= s23 * 997805;
s15 += s23 * 136657;
s16 -= s23 * 683901;
s23 = 0;
s10 += s22 * 666643;
s11 += s22 * 470296;
s12 += s22 * 654183;
s13 -= s22 * 997805;
s14 += s22 * 136657;
s15 -= s22 * 683901;
s22 = 0;
s9 += s21 * 666643;
s10 += s21 * 470296;
s11 += s21 * 654183;
s12 -= s21 * 997805;
s13 += s21 * 136657;
s14 -= s21 * 683901;
s21 = 0;
s8 += s20 * 666643;
s9 += s20 * 470296;
s10 += s20 * 654183;
s11 -= s20 * 997805;
s12 += s20 * 136657;
s13 -= s20 * 683901;
s20 = 0;
s7 += s19 * 666643;
s8 += s19 * 470296;
s9 += s19 * 654183;
s10 -= s19 * 997805;
s11 += s19 * 136657;
s12 -= s19 * 683901;
s19 = 0;
s6 += s18 * 666643;
s7 += s18 * 470296;
s8 += s18 * 654183;
s9 -= s18 * 997805;
s10 += s18 * 136657;
s11 -= s18 * 683901;
s18 = 0;
carry6 = (s6 + (1 << 20)) >> 21;
s7 += carry6;
s6 -= carry6 << 21;
carry8 = (s8 + (1 << 20)) >> 21;
s9 += carry8;
s8 -= carry8 << 21;
carry10 = (s10 + (1 << 20)) >> 21;
s11 += carry10;
s10 -= carry10 << 21;
carry12 = (s12 + (1 << 20)) >> 21;
s13 += carry12;
s12 -= carry12 << 21;
carry14 = (s14 + (1 << 20)) >> 21;
s15 += carry14;
s14 -= carry14 << 21;
carry16 = (s16 + (1 << 20)) >> 21;
s17 += carry16;
s16 -= carry16 << 21;
carry7 = (s7 + (1 << 20)) >> 21;
s8 += carry7;
s7 -= carry7 << 21;
carry9 = (s9 + (1 << 20)) >> 21;
s10 += carry9;
s9 -= carry9 << 21;
carry11 = (s11 + (1 << 20)) >> 21;
s12 += carry11;
s11 -= carry11 << 21;
carry13 = (s13 + (1 << 20)) >> 21;
s14 += carry13;
s13 -= carry13 << 21;
carry15 = (s15 + (1 << 20)) >> 21;
s16 += carry15;
s15 -= carry15 << 21;
s5 += s17 * 666643;
s6 += s17 * 470296;
s7 += s17 * 654183;
s8 -= s17 * 997805;
s9 += s17 * 136657;
s10 -= s17 * 683901;
s17 = 0;
s4 += s16 * 666643;
s5 += s16 * 470296;
s6 += s16 * 654183;
s7 -= s16 * 997805;
s8 += s16 * 136657;
s9 -= s16 * 683901;
s16 = 0;
s3 += s15 * 666643;
s4 += s15 * 470296;
s5 += s15 * 654183;
s6 -= s15 * 997805;
s7 += s15 * 136657;
s8 -= s15 * 683901;
s15 = 0;
s2 += s14 * 666643;
s3 += s14 * 470296;
s4 += s14 * 654183;
s5 -= s14 * 997805;
s6 += s14 * 136657;
s7 -= s14 * 683901;
s14 = 0;
s1 += s13 * 666643;
s2 += s13 * 470296;
s3 += s13 * 654183;
s4 -= s13 * 997805;
s5 += s13 * 136657;
s6 -= s13 * 683901;
s13 = 0;
s0 += s12 * 666643;
s1 += s12 * 470296;
s2 += s12 * 654183;
s3 -= s12 * 997805;
s4 += s12 * 136657;
s5 -= s12 * 683901;
s12 = 0;
carry0 = (s0 + (1 << 20)) >> 21;
s1 += carry0;
s0 -= carry0 << 21;
carry2 = (s2 + (1 << 20)) >> 21;
s3 += carry2;
s2 -= carry2 << 21;
carry4 = (s4 + (1 << 20)) >> 21;
s5 += carry4;
s4 -= carry4 << 21;
carry6 = (s6 + (1 << 20)) >> 21;
s7 += carry6;
s6 -= carry6 << 21;
carry8 = (s8 + (1 << 20)) >> 21;
s9 += carry8;
s8 -= carry8 << 21;
carry10 = (s10 + (1 << 20)) >> 21;
s11 += carry10;
s10 -= carry10 << 21;
carry1 = (s1 + (1 << 20)) >> 21;
s2 += carry1;
s1 -= carry1 << 21;
carry3 = (s3 + (1 << 20)) >> 21;
s4 += carry3;
s3 -= carry3 << 21;
carry5 = (s5 + (1 << 20)) >> 21;
s6 += carry5;
s5 -= carry5 << 21;
carry7 = (s7 + (1 << 20)) >> 21;
s8 += carry7;
s7 -= carry7 << 21;
carry9 = (s9 + (1 << 20)) >> 21;
s10 += carry9;
s9 -= carry9 << 21;
carry11 = (s11 + (1 << 20)) >> 21;
s12 += carry11;
s11 -= carry11 << 21;
s0 += s12 * 666643;
s1 += s12 * 470296;
s2 += s12 * 654183;
s3 -= s12 * 997805;
s4 += s12 * 136657;
s5 -= s12 * 683901;
s12 = 0;
carry0 = s0 >> 21;
s1 += carry0;
s0 -= carry0 << 21;
carry1 = s1 >> 21;
s2 += carry1;
s1 -= carry1 << 21;
carry2 = s2 >> 21;
s3 += carry2;
s2 -= carry2 << 21;
carry3 = s3 >> 21;
s4 += carry3;
s3 -= carry3 << 21;
carry4 = s4 >> 21;
s5 += carry4;
s4 -= carry4 << 21;
carry5 = s5 >> 21;
s6 += carry5;
s5 -= carry5 << 21;
carry6 = s6 >> 21;
s7 += carry6;
s6 -= carry6 << 21;
carry7 = s7 >> 21;
s8 += carry7;
s7 -= carry7 << 21;
carry8 = s8 >> 21;
s9 += carry8;
s8 -= carry8 << 21;
carry9 = s9 >> 21;
s10 += carry9;
s9 -= carry9 << 21;
carry10 = s10 >> 21;
s11 += carry10;
s10 -= carry10 << 21;
carry11 = s11 >> 21;
s12 += carry11;
s11 -= carry11 << 21;
s0 += s12 * 666643;
s1 += s12 * 470296;
s2 += s12 * 654183;
s3 -= s12 * 997805;
s4 += s12 * 136657;
s5 -= s12 * 683901;
s12 = 0;
carry0 = s0 >> 21;
s1 += carry0;
s0 -= carry0 << 21;
carry1 = s1 >> 21;
s2 += carry1;
s1 -= carry1 << 21;
carry2 = s2 >> 21;
s3 += carry2;
s2 -= carry2 << 21;
carry3 = s3 >> 21;
s4 += carry3;
s3 -= carry3 << 21;
carry4 = s4 >> 21;
s5 += carry4;
s4 -= carry4 << 21;
carry5 = s5 >> 21;
s6 += carry5;
s5 -= carry5 << 21;
carry6 = s6 >> 21;
s7 += carry6;
s6 -= carry6 << 21;
carry7 = s7 >> 21;
s8 += carry7;
s7 -= carry7 << 21;
carry8 = s8 >> 21;
s9 += carry8;
s8 -= carry8 << 21;
carry9 = s9 >> 21;
s10 += carry9;
s9 -= carry9 << 21;
carry10 = s10 >> 21;
s11 += carry10;
s10 -= carry10 << 21;
s[0] = (unsigned char) (s0 >> 0);
s[1] = (unsigned char) (s0 >> 8);
s[2] = (unsigned char) ((s0 >> 16) | (s1 << 5));
s[3] = (unsigned char) (s1 >> 3);
s[4] = (unsigned char) (s1 >> 11);
s[5] = (unsigned char) ((s1 >> 19) | (s2 << 2));
s[6] = (unsigned char) (s2 >> 6);
s[7] = (unsigned char) ((s2 >> 14) | (s3 << 7));
s[8] = (unsigned char) (s3 >> 1);
s[9] = (unsigned char) (s3 >> 9);
s[10] = (unsigned char) ((s3 >> 17) | (s4 << 4));
s[11] = (unsigned char) (s4 >> 4);
s[12] = (unsigned char) (s4 >> 12);
s[13] = (unsigned char) ((s4 >> 20) | (s5 << 1));
s[14] = (unsigned char) (s5 >> 7);
s[15] = (unsigned char) ((s5 >> 15) | (s6 << 6));
s[16] = (unsigned char) (s6 >> 2);
s[17] = (unsigned char) (s6 >> 10);
s[18] = (unsigned char) ((s6 >> 18) | (s7 << 3));
s[19] = (unsigned char) (s7 >> 5);
s[20] = (unsigned char) (s7 >> 13);
s[21] = (unsigned char) (s8 >> 0);
s[22] = (unsigned char) (s8 >> 8);
s[23] = (unsigned char) ((s8 >> 16) | (s9 << 5));
s[24] = (unsigned char) (s9 >> 3);
s[25] = (unsigned char) (s9 >> 11);
s[26] = (unsigned char) ((s9 >> 19) | (s10 << 2));
s[27] = (unsigned char) (s10 >> 6);
s[28] = (unsigned char) ((s10 >> 14) | (s11 << 7));
s[29] = (unsigned char) (s11 >> 1);
s[30] = (unsigned char) (s11 >> 9);
s[31] = (unsigned char) (s11 >> 17);
}

12
rust/ares/src/urcrypt/ed25519/src/sc.h
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@ -1,12 +0,0 @@
#ifndef SC_H
#define SC_H
/*
The set of scalars is \Z/l
where l = 2^252 + 27742317777372353535851937790883648493.
*/
void sc_reduce(unsigned char *s);
void sc_muladd(unsigned char *s, const unsigned char *a, const unsigned char *b, const unsigned char *c);
#endif

40
rust/ares/src/urcrypt/ed25519/src/seed.c
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@ -1,40 +0,0 @@
#include "ed25519.h"
#ifndef ED25519_NO_SEED
#ifdef _WIN32
#include <windows.h>
#include <wincrypt.h>
#else
#include <stdio.h>
#endif
int ed25519_create_seed(unsigned char *seed) {
#ifdef _WIN32
HCRYPTPROV prov;
if (!CryptAcquireContext(&prov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) {
return 1;
}
if (!CryptGenRandom(prov, 32, seed)) {
CryptReleaseContext(prov, 0);
return 1;
}
CryptReleaseContext(prov, 0);
#else
FILE *f = fopen("/dev/urandom", "rb");
if (f == NULL) {
return 1;
}
fread(seed, 1, 32, f);
fclose(f);
#endif
return 0;
}
#endif

275
rust/ares/src/urcrypt/ed25519/src/sha512.c
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@ -1,275 +0,0 @@
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
*
* LibTomCrypt is a library that provides various cryptographic
* algorithms in a highly modular and flexible manner.
*
* The library is free for all purposes without any express
* guarantee it works.
*
* Tom St Denis, tomstdenis@gmail.com, http://libtom.org
*/
#include "fixedint.h"
#include "sha512.h"
/* the K array */
static const uint64_t K[80] = {
UINT64_C(0x428a2f98d728ae22), UINT64_C(0x7137449123ef65cd),
UINT64_C(0xb5c0fbcfec4d3b2f), UINT64_C(0xe9b5dba58189dbbc),
UINT64_C(0x3956c25bf348b538), UINT64_C(0x59f111f1b605d019),
UINT64_C(0x923f82a4af194f9b), UINT64_C(0xab1c5ed5da6d8118),
UINT64_C(0xd807aa98a3030242), UINT64_C(0x12835b0145706fbe),
UINT64_C(0x243185be4ee4b28c), UINT64_C(0x550c7dc3d5ffb4e2),
UINT64_C(0x72be5d74f27b896f), UINT64_C(0x80deb1fe3b1696b1),
UINT64_C(0x9bdc06a725c71235), UINT64_C(0xc19bf174cf692694),
UINT64_C(0xe49b69c19ef14ad2), UINT64_C(0xefbe4786384f25e3),
UINT64_C(0x0fc19dc68b8cd5b5), UINT64_C(0x240ca1cc77ac9c65),
UINT64_C(0x2de92c6f592b0275), UINT64_C(0x4a7484aa6ea6e483),
UINT64_C(0x5cb0a9dcbd41fbd4), UINT64_C(0x76f988da831153b5),
UINT64_C(0x983e5152ee66dfab), UINT64_C(0xa831c66d2db43210),
UINT64_C(0xb00327c898fb213f), UINT64_C(0xbf597fc7beef0ee4),
UINT64_C(0xc6e00bf33da88fc2), UINT64_C(0xd5a79147930aa725),
UINT64_C(0x06ca6351e003826f), UINT64_C(0x142929670a0e6e70),
UINT64_C(0x27b70a8546d22ffc), UINT64_C(0x2e1b21385c26c926),
UINT64_C(0x4d2c6dfc5ac42aed), UINT64_C(0x53380d139d95b3df),
UINT64_C(0x650a73548baf63de), UINT64_C(0x766a0abb3c77b2a8),
UINT64_C(0x81c2c92e47edaee6), UINT64_C(0x92722c851482353b),
UINT64_C(0xa2bfe8a14cf10364), UINT64_C(0xa81a664bbc423001),
UINT64_C(0xc24b8b70d0f89791), UINT64_C(0xc76c51a30654be30),
UINT64_C(0xd192e819d6ef5218), UINT64_C(0xd69906245565a910),
UINT64_C(0xf40e35855771202a), UINT64_C(0x106aa07032bbd1b8),
UINT64_C(0x19a4c116b8d2d0c8), UINT64_C(0x1e376c085141ab53),
UINT64_C(0x2748774cdf8eeb99), UINT64_C(0x34b0bcb5e19b48a8),
UINT64_C(0x391c0cb3c5c95a63), UINT64_C(0x4ed8aa4ae3418acb),
UINT64_C(0x5b9cca4f7763e373), UINT64_C(0x682e6ff3d6b2b8a3),
UINT64_C(0x748f82ee5defb2fc), UINT64_C(0x78a5636f43172f60),
UINT64_C(0x84c87814a1f0ab72), UINT64_C(0x8cc702081a6439ec),
UINT64_C(0x90befffa23631e28), UINT64_C(0xa4506cebde82bde9),
UINT64_C(0xbef9a3f7b2c67915), UINT64_C(0xc67178f2e372532b),
UINT64_C(0xca273eceea26619c), UINT64_C(0xd186b8c721c0c207),
UINT64_C(0xeada7dd6cde0eb1e), UINT64_C(0xf57d4f7fee6ed178),
UINT64_C(0x06f067aa72176fba), UINT64_C(0x0a637dc5a2c898a6),
UINT64_C(0x113f9804bef90dae), UINT64_C(0x1b710b35131c471b),
UINT64_C(0x28db77f523047d84), UINT64_C(0x32caab7b40c72493),
UINT64_C(0x3c9ebe0a15c9bebc), UINT64_C(0x431d67c49c100d4c),
UINT64_C(0x4cc5d4becb3e42b6), UINT64_C(0x597f299cfc657e2a),
UINT64_C(0x5fcb6fab3ad6faec), UINT64_C(0x6c44198c4a475817)
};
/* Various logical functions */
#define ROR64c(x, y) \
( ((((x)&UINT64_C(0xFFFFFFFFFFFFFFFF))>>((uint64_t)(y)&UINT64_C(63))) | \
((x)<<((uint64_t)(64-((y)&UINT64_C(63)))))) & UINT64_C(0xFFFFFFFFFFFFFFFF))
#define STORE64H(x, y) \
{ (y)[0] = (unsigned char)(((x)>>56)&255); (y)[1] = (unsigned char)(((x)>>48)&255); \
(y)[2] = (unsigned char)(((x)>>40)&255); (y)[3] = (unsigned char)(((x)>>32)&255); \
(y)[4] = (unsigned char)(((x)>>24)&255); (y)[5] = (unsigned char)(((x)>>16)&255); \
(y)[6] = (unsigned char)(((x)>>8)&255); (y)[7] = (unsigned char)((x)&255); }
#define LOAD64H(x, y) \
{ x = (((uint64_t)((y)[0] & 255))<<56)|(((uint64_t)((y)[1] & 255))<<48) | \
(((uint64_t)((y)[2] & 255))<<40)|(((uint64_t)((y)[3] & 255))<<32) | \
(((uint64_t)((y)[4] & 255))<<24)|(((uint64_t)((y)[5] & 255))<<16) | \
(((uint64_t)((y)[6] & 255))<<8)|(((uint64_t)((y)[7] & 255))); }
#define Ch(x,y,z) (z ^ (x & (y ^ z)))
#define Maj(x,y,z) (((x | y) & z) | (x & y))
#define S(x, n) ROR64c(x, n)
#define R(x, n) (((x) &UINT64_C(0xFFFFFFFFFFFFFFFF))>>((uint64_t)n))
#define Sigma0(x) (S(x, 28) ^ S(x, 34) ^ S(x, 39))
#define Sigma1(x) (S(x, 14) ^ S(x, 18) ^ S(x, 41))
#define Gamma0(x) (S(x, 1) ^ S(x, 8) ^ R(x, 7))
#define Gamma1(x) (S(x, 19) ^ S(x, 61) ^ R(x, 6))
#ifndef MIN
#define MIN(x, y) ( ((x)<(y))?(x):(y) )
#endif
/* compress 1024-bits */
static int sha512_compress(sha512_context *md, unsigned char *buf)
{
uint64_t S[8], W[80], t0, t1;
int i;
/* copy state into S */
for (i = 0; i < 8; i++) {
S[i] = md->state[i];
}
/* copy the state into 1024-bits into W[0..15] */
for (i = 0; i < 16; i++) {
LOAD64H(W[i], buf + (8*i));
}
/* fill W[16..79] */
for (i = 16; i < 80; i++) {
W[i] = Gamma1(W[i - 2]) + W[i - 7] + Gamma0(W[i - 15]) + W[i - 16];
}
/* Compress */
#define RND(a,b,c,d,e,f,g,h,i) \
t0 = h + Sigma1(e) + Ch(e, f, g) + K[i] + W[i]; \
t1 = Sigma0(a) + Maj(a, b, c);\
d += t0; \
h = t0 + t1;
for (i = 0; i < 80; i += 8) {
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],i+0);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],i+1);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],i+2);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],i+3);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],i+4);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],i+5);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],i+6);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],i+7);
}
#undef RND
/* feedback */
for (i = 0; i < 8; i++) {
md->state[i] = md->state[i] + S[i];
}
return 0;
}
/**
Initialize the hash state
@param md The hash state you wish to initialize
@return 0 if successful
*/
int sha512_init(sha512_context * md) {
if (md == NULL) return 1;
md->curlen = 0;
md->length = 0;
md->state[0] = UINT64_C(0x6a09e667f3bcc908);
md->state[1] = UINT64_C(0xbb67ae8584caa73b);
md->state[2] = UINT64_C(0x3c6ef372fe94f82b);
md->state[3] = UINT64_C(0xa54ff53a5f1d36f1);
md->state[4] = UINT64_C(0x510e527fade682d1);
md->state[5] = UINT64_C(0x9b05688c2b3e6c1f);
md->state[6] = UINT64_C(0x1f83d9abfb41bd6b);
md->state[7] = UINT64_C(0x5be0cd19137e2179);
return 0;
}
/**
Process a block of memory though the hash
@param md The hash state
@param in The data to hash
@param inlen The length of the data (octets)
@return 0 if successful
*/
int sha512_update (sha512_context * md, const unsigned char *in, size_t inlen)
{
size_t n;
size_t i;
int err;
if (md == NULL) return 1;
if (in == NULL) return 1;
if (md->curlen > sizeof(md->buf)) {
return 1;
}
while (inlen > 0) {
if (md->curlen == 0 && inlen >= 128) {
if ((err = sha512_compress (md, (unsigned char *)in)) != 0) {
return err;
}
md->length += 128 * 8;
in += 128;
inlen -= 128;
} else {
n = MIN(inlen, (128 - md->curlen));
for (i = 0; i < n; i++) {
md->buf[i + md->curlen] = in[i];
}
md->curlen += n;
in += n;
inlen -= n;
if (md->curlen == 128) {
if ((err = sha512_compress (md, md->buf)) != 0) {
return err;
}
md->length += 8*128;
md->curlen = 0;
}
}
}
return 0;
}
/**
Terminate the hash to get the digest
@param md The hash state
@param out [out] The destination of the hash (64 bytes)
@return 0 if successful
*/
int sha512_final(sha512_context * md, unsigned char *out)
{
int i;
if (md == NULL) return 1;
if (out == NULL) return 1;
if (md->curlen >= sizeof(md->buf)) {
return 1;
}
/* increase the length of the message */
md->length += md->curlen * UINT64_C(8);
/* append the '1' bit */
md->buf[md->curlen++] = (unsigned char)0x80;
/* if the length is currently above 112 bytes we append zeros
* then compress. Then we can fall back to padding zeros and length
* encoding like normal.
*/
if (md->curlen > 112) {
while (md->curlen < 128) {
md->buf[md->curlen++] = (unsigned char)0;
}
sha512_compress(md, md->buf);
md->curlen = 0;
}
/* pad upto 120 bytes of zeroes
* note: that from 112 to 120 is the 64 MSB of the length. We assume that you won't hash
* > 2^64 bits of data... :-)
*/
while (md->curlen < 120) {
md->buf[md->curlen++] = (unsigned char)0;
}
/* store length */
STORE64H(md->length, md->buf+120);
sha512_compress(md, md->buf);
/* copy output */
for (i = 0; i < 8; i++) {
STORE64H(md->state[i], out+(8*i));
}
return 0;
}
int sha512(const unsigned char *message, size_t message_len, unsigned char *out)
{
sha512_context ctx;
int ret;
if ((ret = sha512_init(&ctx))) return ret;
if ((ret = sha512_update(&ctx, message, message_len))) return ret;
if ((ret = sha512_final(&ctx, out))) return ret;
return 0;
}

21
rust/ares/src/urcrypt/ed25519/src/sha512.h
View File

@ -1,21 +0,0 @@
#ifndef SHA512_H
#define SHA512_H
#include <stddef.h>
#include "fixedint.h"
/* state */
typedef struct sha512_context_ {
uint64_t length, state[8];
size_t curlen;
unsigned char buf[128];
} sha512_context;
int sha512_init(sha512_context * md);
int sha512_final(sha512_context * md, unsigned char *out);
int sha512_update(sha512_context * md, const unsigned char *in, size_t inlen);
int sha512(const unsigned char *message, size_t message_len, unsigned char *out);
#endif

31
rust/ares/src/urcrypt/ed25519/src/sign.c
View File

@ -1,31 +0,0 @@
#include "ed25519.h"
#include "sha512.h"
#include "ge.h"
#include "sc.h"
void ed25519_sign(unsigned char *signature, const unsigned char *message, size_t message_len, const unsigned char *public_key, const unsigned char *private_key) {
sha512_context hash;
unsigned char hram[64];
unsigned char r[64];
ge_p3 R;
sha512_init(&hash);
sha512_update(&hash, private_key + 32, 32);
sha512_update(&hash, message, message_len);
sha512_final(&hash, r);
sc_reduce(r);
ge_scalarmult_base(&R, r);
ge_p3_tobytes(signature, &R);
sha512_init(&hash);
sha512_update(&hash, signature, 32);
sha512_update(&hash, public_key, 32);
sha512_update(&hash, message, message_len);
sha512_final(&hash, hram);
sc_reduce(hram);
sc_muladd(signature + 32, hram, private_key, r);
}

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