diff --git a/Makefile b/Makefile index c83c8a0d70..5b94668d00 100644 --- a/Makefile +++ b/Makefile @@ -39,7 +39,7 @@ RM=rm -f CC=gcc CXX=g++ CXXFLAGS=$(CFLAGS) -CLD=g++ -g -L/usr/local/lib -L/opt/local/lib +CLD=g++ -L/usr/local/lib -L/opt/local/lib ifeq ($(OS),osx) COSFLAGS=-fno-diagnostics-fixit-info @@ -78,6 +78,7 @@ CFLAGS= $(COSFLAGS) -O3 -msse3 -ffast-math \ -Ioutside/ed25519/src \ -Ioutside/commonmark/src \ -Ioutside/commonmark/build/src \ + -Ioutside/scrypt \ $(DEFINES) \ $(MDEFINES) @@ -201,6 +202,7 @@ J_E_OFILES=\ j/e/repg.o \ j/e/rexp.o \ j/e/rub.o \ + j/e/scr.o \ j/e/shax.o \ j/e/lore.o \ j/e/loss.o \ @@ -350,6 +352,8 @@ LIBANACHRONISM=outside/anachronism/build/libanachronism.a LIBCOMMONMARK=outside/commonmark/build/src/libcmark.a +LIBSCRYPT=outside/scrypt/scrypt.a + all: vere .MAKEFILE-VERSION: Makefile .make.conf @@ -380,25 +384,28 @@ $(LIBANACHRONISM): $(LIBCOMMONMARK): $(MAKE) -C outside/commonmark +$(LIBSCRYPT): + $(MAKE) -C outside/scrypt MDEFINES="$(MDEFINES)" + $(CRE2_OFILES): outside/cre2/src/src/cre2.cpp outside/cre2/src/src/cre2.h $(LIBRE2) $(CXX) $(CXXFLAGS) -c $< -o $@ $(V_OFILES): i/v/vere.h ifdef NO_SILENT_RULES -$(BIN)/vere: $(LIBCRE) $(LIBCOMMONMARK) $(VERE_OFILES) $(LIBUV) $(LIBRE2) $(LIBED25519) $(LIBANACHRONISM) +$(BIN)/vere: $(LIBCRE) $(LIBCOMMONMARK) $(VERE_OFILES) $(LIBUV) $(LIBRE2) $(LIBED25519) $(LIBANACHRONISM) $(LIBSCRYPT) mkdir -p $(BIN) - $(CLD) $(CLDOSFLAGS) -o $(BIN)/vere $(VERE_OFILES) $(LIBUV) $(LIBCRE) $(LIBRE2) $(LIBED25519) $(LIBANACHRONISM) $(LIBS) $(LIBCOMMONMARK) + $(CLD) $(CLDOSFLAGS) -o $(BIN)/vere $(VERE_OFILES) $(LIBUV) $(LIBCRE) $(LIBRE2) $(LIBED25519) $(LIBANACHRONISM) $(LIBS) $(LIBCOMMONMARK) $(LIBSCRYPT) else -$(BIN)/vere: $(LIBCRE) $(LIBCOMMONMARK) $(VERE_OFILES) $(LIBUV) $(LIBRE2) $(LIBED25519) $(LIBANACHRONISM) +$(BIN)/vere: $(LIBCRE) $(LIBCOMMONMARK) $(VERE_OFILES) $(LIBUV) $(LIBRE2) $(LIBED25519) $(LIBANACHRONISM) $(LIBSCRYPT) @echo " CCLD $(BIN)/vere" @mkdir -p $(BIN) - @$(CLD) $(CLDOSFLAGS) -o $(BIN)/vere $(VERE_OFILES) $(LIBUV) $(LIBCRE) $(LIBRE2) $(LIBED25519) $(LIBANACHRONISM) $(LIBS) $(LIBCOMMONMARK) + @$(CLD) $(CLDOSFLAGS) -o $(BIN)/vere $(VERE_OFILES) $(LIBUV) $(LIBCRE) $(LIBRE2) $(LIBED25519) $(LIBANACHRONISM) $(LIBS) $(LIBCOMMONMARK) $(LIBSCRYPT) endif -$(BIN)/meme: $(LIBCRE) $(LIBCOMMONMARK) $(MEME_OFILES) $(LIBUV) $(LIBRE2) $(LIBED25519) $(LIBANACHRONISM) +$(BIN)/meme: $(LIBCRE) $(LIBCOMMONMARK) $(MEME_OFILES) $(LIBUV) $(LIBRE2) $(LIBED25519) $(LIBANACHRONISM) $(LIBSCRYPT) mkdir -p $(BIN) - $(CLD) $(CLDOSFLAGS) -o $(BIN)/meme $(MEME_OFILES) $(LIBUV) $(LIBCRE) $(LIBRE2) $(LIBED25519) $(LIBANACHRONISM) $(LIBS) $(LIBCOMMONMARK) + $(CLD) $(CLDOSFLAGS) -o $(BIN)/meme $(MEME_OFILES) $(LIBUV) $(LIBCRE) $(LIBRE2) $(LIBED25519) $(LIBANACHRONISM) $(LIBS) $(LIBCOMMONMARK) $(LIBSCRYPT) tags: ctags -R -f .tags --exclude=root @@ -433,5 +440,6 @@ distclean: clean $(LIBUV_MAKEFILE) $(MAKE) -C outside/re2 clean $(MAKE) -C outside/ed25519 clean $(MAKE) -C outside/anachronism clean + $(MAKE) -C outside/scrypt clean .PHONY: clean debbuild debinstalldistclean etags osxpackage tags diff --git a/i/j/q.h b/i/j/q.h index 9d490f6d2a..04a6362956 100644 --- a/i/j/q.h +++ b/i/j/q.h @@ -93,6 +93,12 @@ u3_noun u3qea_de(u3_atom, u3_atom); u3_noun u3qea_en(u3_atom, u3_atom); + u3_noun u3qes_hsh(u3_atom, u3_atom, u3_atom, u3_atom, u3_atom, u3_atom); + u3_noun u3qes_hsl(u3_atom, u3_atom, u3_atom, u3_atom, u3_atom, + u3_atom, u3_atom, u3_atom); + u3_noun u3qes_pbk(u3_atom, u3_atom, u3_atom, u3_atom); + u3_noun u3qes_pbl(u3_atom, u3_atom, u3_atom, u3_atom, u3_atom, u3_atom); + u3_noun u3qe_shax(u3_atom); u3_noun u3qe_shay(u3_atom, u3_atom); u3_noun u3qe_shas(u3_atom, u3_atom); diff --git a/i/j/w.h b/i/j/w.h index 615f237c9a..1ebb5f286f 100644 --- a/i/j/w.h +++ b/i/j/w.h @@ -105,6 +105,11 @@ u3_noun u3wea_de(u3_noun); u3_noun u3wea_en(u3_noun); + u3_noun u3wes_hsh(u3_noun); + u3_noun u3wes_hsl(u3_noun); + u3_noun u3wes_pbk(u3_noun); + u3_noun u3wes_pbl(u3_noun); + u3_noun u3we_shax(u3_noun); u3_noun u3we_shay(u3_noun); u3_noun u3we_shas(u3_noun); diff --git a/j/e/scr.c b/j/e/scr.c new file mode 100644 index 0000000000..3d6a87978e --- /dev/null +++ b/j/e/scr.c @@ -0,0 +1,232 @@ +/* j/5/scr.c +** +*/ +#include "all.h" + +#include +#include +#include + +int _crypto_scrypt(const uint8_t *, size_t, const uint8_t *, size_t, + uint64_t, uint32_t, uint32_t, uint8_t *, size_t); + +/* functions +*/ + + u3_noun + u3qes_hsl(u3_atom p, u3_atom pl, u3_atom s, u3_atom sl, u3_atom n, + u3_atom r, u3_atom z, u3_atom d) + { + c3_assert(_(u3a_is_atom(p)) && _(u3a_is_atom(s)) && + _(u3a_is_cat(pl)) && _(u3a_is_cat(sl)) && + _(u3a_is_cat(n)) && _(u3a_is_cat(r)) && + _(u3a_is_cat(z)) && _(u3a_is_cat(d)) && + (r * z) < 1073741824); + + c3_y* b_p = u3a_malloc(pl + 1); c3_y* b_s= u3a_malloc(sl + 1); + u3r_bytes(0, pl, b_p, p); u3r_bytes(0, sl, b_s, s); + b_p[pl] = 0; b_s[sl]=0; + c3_y* buf = u3a_malloc(d); + + _crypto_scrypt(b_p, pl, b_s, sl, n, r, z, buf, d); + + u3_noun res = u3i_bytes(d, buf); + u3a_free(b_p); u3a_free(b_s); u3a_free(buf); + + return res; + } + + u3_noun + u3wes_hsl(u3_noun cor) + { + u3_noun p, pl, s, sl, n, r, z, d; + u3_noun q; + + u3x_quil(u3r_at(u3x_sam, cor), &p, &pl, &s, &sl, &q); + u3x_qual(q, &n, &r, &z, &d); + + return u3qes_hsl(p, pl, s, sl, n, r, z, d); + } + + u3_noun + u3qes_hsh(u3_atom p, u3_atom s, u3_atom n, u3_atom r, u3_atom z, u3_atom d) + { + c3_assert(_(u3a_is_atom(p)) && _(u3a_is_atom(s)) && + _(u3a_is_cat(n)) && _(u3a_is_cat(r)) && + _(u3a_is_cat(z)) && _(u3a_is_cat(d)) && + (r * z) < 1073741824); + + c3_w pl = u3r_met(3, p); c3_w sl = u3r_met(3, s); + c3_y* b_p = u3a_malloc(pl + 1); c3_y* b_s= u3a_malloc(sl + 1); + u3r_bytes(0, pl, b_p, p); u3r_bytes(0, sl, b_s, s); + b_p[pl] = 0; b_s[sl]=0; + c3_y* buf = u3a_malloc(d); + + _crypto_scrypt(b_p, pl, b_s, sl, n, r, z, buf, d); + + u3_noun res = u3i_bytes(d, buf); + u3a_free(b_p); u3a_free(b_s); u3a_free(buf); + + return res; + } + + u3_noun + u3wes_hsh(u3_noun cor) + { + u3_noun p, s, n, r, z, d; + u3_noun q; + + u3x_quil(u3r_at(u3x_sam, cor), &p, &s, &n, &r, &q); + u3x_cell(q, &z, &d); + + return u3qes_hsh(p, s, n, r, z, d); + } + + u3_noun + u3qes_pbl(u3_atom p, u3_atom pl, u3_atom s, u3_atom sl, + u3_atom c, u3_atom d) + { + c3_assert(_(u3a_is_atom(p)) && _(u3a_is_atom(s)) && + _(u3a_is_cat(pl)) && _(u3a_is_cat(sl)) && + _(u3a_is_cat(c)) && _(u3a_is_cat(d))); + + c3_y* b_p = u3a_malloc(pl + 1); c3_y* b_s= u3a_malloc(pl + 1); + u3r_bytes(0, pl, b_p, p); u3r_bytes(0, sl, b_s, s); + b_p[pl] = 0; b_s[sl]=0; + c3_y* buf = u3a_malloc(d); + + PBKDF2_SHA256(b_p, pl, b_s, sl, c, buf, d); + + u3_noun res = u3i_bytes(d, buf); + u3a_free(b_p); u3a_free(b_s); u3a_free(buf); + + return res; + } + + u3_noun + u3wes_pbl(u3_noun cor) + { + u3_noun p, pl, s, sl, c, d; + u3_noun q; + + u3x_quil(u3r_at(u3x_sam, cor), &p, &pl, &s, &sl, &q); + u3x_cell(q, &c, &d); + + return u3qes_pbl(p, pl, s, sl, c, d); + } + + u3_noun + u3qes_pbk(u3_atom p, u3_atom s, u3_atom c, u3_atom d) + { + c3_assert(_(u3a_is_atom(p)) && _(u3a_is_atom(s)) && + _(u3a_is_cat(c)) && _(u3a_is_cat(d))); + + c3_w pl = u3r_met(3, p); c3_w sl = u3r_met(3, s); + c3_y* b_p = u3a_malloc(pl + 1); c3_y* b_s= u3a_malloc(pl + 1); + u3r_bytes(0, pl, b_p, p); u3r_bytes(0, sl, b_s, s); + b_p[pl] = 0; b_s[sl]=0; + c3_y* buf = u3a_malloc(d); + + PBKDF2_SHA256(b_p, pl, b_s, sl, c, buf, d); + + u3_noun res = u3i_bytes(d, buf); + u3a_free(b_p); u3a_free(b_s); u3a_free(buf); + + return res; + } + + u3_noun + u3wes_pbk(u3_noun cor) + { + u3_noun p, s, c, d; + + u3x_qual(u3r_at(u3x_sam, cor), &p, &s, &c, &d); + + return u3qes_pbk(p, s, c, d); + } + + +/** + * crypto_scrypt(passwd, passwdlen, salt, saltlen, N, r, p, buf, buflen): + * Compute scrypt(passwd[0 .. passwdlen - 1], salt[0 .. saltlen - 1], N, r, + * p, buflen) and write the result into buf. The parameters r, p, and buflen + * must satisfy r * p < 2^30 and buflen <= (2^32 - 1) * 32. The parameter N + * must be a power of 2 greater than 1. + * + * Return 0 on success; or -1 on error. + */ +int +_crypto_scrypt(const uint8_t * passwd, size_t passwdlen, + const uint8_t * salt, size_t saltlen, uint64_t N, uint32_t r, uint32_t p, + uint8_t * buf, size_t buflen) +{ + void * B0, * V0, * XY0; + uint8_t * B; + uint32_t * V; + uint32_t * XY; + uint32_t i; + + /* Sanity-check parameters. */ +#if SIZE_MAX > UINT32_MAX + if (buflen > (((uint64_t)(1) << 32) - 1) * 32) { + errno = EFBIG; + goto err0; + } +#endif + if ((uint64_t)(r) * (uint64_t)(p) >= (1 << 30)) { + errno = EFBIG; + goto err0; + } + if (((N & (N - 1)) != 0) || (N == 0)) { + errno = EINVAL; + goto err0; + } + if ((r > SIZE_MAX / 128 / p) || +#if SIZE_MAX / 256 <= UINT32_MAX + (r > (SIZE_MAX - 64) / 256) || +#endif + (N > SIZE_MAX / 128 / r)) { + errno = ENOMEM; + goto err0; + } + + /* Allocate memory. */ + if ((B0 = u3a_malloc(128 * r * p + 63)) == NULL) + goto err0; + B = (uint8_t *)(((uintptr_t)(B0) + 63) & ~ (uintptr_t)(63)); + if ((XY0 = u3a_malloc(256 * r + 64 + 63)) == NULL) + goto err1; + XY = (uint32_t *)(((uintptr_t)(XY0) + 63) & ~ (uintptr_t)(63)); + if ((V0 = u3a_malloc(128 * r * N + 63)) == NULL) + goto err2; + V = (uint32_t *)(((uintptr_t)(V0) + 63) & ~ (uintptr_t)(63)); + + /* 1: (B_0 ... B_{p-1}) <-- PBKDF2(P, S, 1, p * MFLen) */ + PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, 1, B, p * 128 * r); + + /* 2: for i = 0 to p - 1 do */ + for (i = 0; i < p; i++) { + /* 3: B_i <-- MF(B_i, N) */ + smix(&B[i * 128 * r], r, N, V, XY); + } + + /* 5: DK <-- PBKDF2(P, B, 1, dkLen) */ + PBKDF2_SHA256(passwd, passwdlen, B, p * 128 * r, 1, buf, buflen); + + /* Free memory. */ + + u3a_free(V0); + u3a_free(XY0); + u3a_free(B0); + + /* Success! */ + return (0); + +err2: + u3a_free(XY0); +err1: + u3a_free(B0); +err0: + /* Failure! */ + return (-1); +} diff --git a/j/tree.c b/j/tree.c index ae778d98c8..6c0ff2b46d 100644 --- a/j/tree.c +++ b/j/tree.c @@ -231,6 +231,18 @@ static u3j_core _mood__hoon__coed_d[] = {} }; +static u3j_harm _mood__hoon__scr_hsh_a[] = {{".2", u3wes_hsh}, {}}; +static u3j_harm _mood__hoon__scr_hsl_a[] = {{".2", u3wes_hsl}, {}}; +static u3j_harm _mood__hoon__scr_pbk_a[] = {{".2", u3wes_pbk}, {}}; +static u3j_harm _mood__hoon__scr_pbl_a[] = {{".2", u3wes_pbl}, {}}; +static u3j_core _mood__hoon__scr_d[] = + { { "hsh", _mood__hoon__scr_hsh_a }, + { "hsl", _mood__hoon__scr_hsl_a }, + { "pbk", _mood__hoon__scr_pbk_a }, + { "pbl", _mood__hoon__scr_pbl_a }, + {} + }; + static u3j_harm _mood__hoon_pfix_a[] = {{".2", u3we_pfix}, {}}; static u3j_harm _mood__hoon_plug_a[] = {{".2", u3we_plug}, {}}; static u3j_harm _mood__hoon_pose_a[] = {{".2", u3we_pose}, {}}; @@ -449,6 +461,8 @@ static u3j_core _mood__hoon_d[] = { "rd", 0, _mood__hoon__rd_d }, { "coed", 0, _mood__hoon__coed_d }, + { "scr", 0, _mood__hoon__scr_d }, + { "pfix", _mood__hoon_pfix_a }, { "plug", _mood__hoon_plug_a }, { "pose", _mood__hoon_pose_a }, diff --git a/outside/scrypt/Makefile b/outside/scrypt/Makefile new file mode 100644 index 0000000000..f3ac5acb9a --- /dev/null +++ b/outside/scrypt/Makefile @@ -0,0 +1,16 @@ +default: all + +CC?=gcc +CFLAGS?=-O2 -msse3 -ffast-math \ + -Wall -g -D_FORTIFY_SOURCE=2 -fPIC +CFLAGS_EXTRA?=-Wl,-rpath=. + +all: scrypt.a + +OBJS= crypto_scrypt-sse.o sha256.o + +scrypt.a: $(OBJS) + ar rcs scrypt.a $(OBJS) + +clean: + rm -f *.o scrypt.a diff --git a/outside/scrypt/crypto_scrypt-sse.c b/outside/scrypt/crypto_scrypt-sse.c new file mode 100644 index 0000000000..d7b33c078d --- /dev/null +++ b/outside/scrypt/crypto_scrypt-sse.c @@ -0,0 +1,357 @@ +/*- + * Copyright 2009 Colin Percival + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file was originally written by Colin Percival as part of the Tarsnap + * online backup system. + */ +#include +#include + +#include +#include +#include +#include +#include + +#include "sha256.h" +#include "sysendian.h" + +#include "crypto_scrypt.h" + +static void +blkcpy(void * dest, void * src, size_t len) +{ + __m128i * D = dest; + __m128i * S = src; + size_t L = len / 16; + size_t i; + + for (i = 0; i < L; i++) + D[i] = S[i]; +} + +static void +blkxor(void * dest, void * src, size_t len) +{ + __m128i * D = dest; + __m128i * S = src; + size_t L = len / 16; + size_t i; + + for (i = 0; i < L; i++) + D[i] = _mm_xor_si128(D[i], S[i]); +} + +/** + * salsa20_8(B): + * Apply the salsa20/8 core to the provided block. + */ +static void +salsa20_8(__m128i B[4]) +{ + __m128i X0, X1, X2, X3; + __m128i T; + size_t i; + + X0 = B[0]; + X1 = B[1]; + X2 = B[2]; + X3 = B[3]; + + for (i = 0; i < 8; i += 2) { + /* Operate on "columns". */ + T = _mm_add_epi32(X0, X3); + X1 = _mm_xor_si128(X1, _mm_slli_epi32(T, 7)); + X1 = _mm_xor_si128(X1, _mm_srli_epi32(T, 25)); + T = _mm_add_epi32(X1, X0); + X2 = _mm_xor_si128(X2, _mm_slli_epi32(T, 9)); + X2 = _mm_xor_si128(X2, _mm_srli_epi32(T, 23)); + T = _mm_add_epi32(X2, X1); + X3 = _mm_xor_si128(X3, _mm_slli_epi32(T, 13)); + X3 = _mm_xor_si128(X3, _mm_srli_epi32(T, 19)); + T = _mm_add_epi32(X3, X2); + X0 = _mm_xor_si128(X0, _mm_slli_epi32(T, 18)); + X0 = _mm_xor_si128(X0, _mm_srli_epi32(T, 14)); + + /* Rearrange data. */ + X1 = _mm_shuffle_epi32(X1, 0x93); + X2 = _mm_shuffle_epi32(X2, 0x4E); + X3 = _mm_shuffle_epi32(X3, 0x39); + + /* Operate on "rows". */ + T = _mm_add_epi32(X0, X1); + X3 = _mm_xor_si128(X3, _mm_slli_epi32(T, 7)); + X3 = _mm_xor_si128(X3, _mm_srli_epi32(T, 25)); + T = _mm_add_epi32(X3, X0); + X2 = _mm_xor_si128(X2, _mm_slli_epi32(T, 9)); + X2 = _mm_xor_si128(X2, _mm_srli_epi32(T, 23)); + T = _mm_add_epi32(X2, X3); + X1 = _mm_xor_si128(X1, _mm_slli_epi32(T, 13)); + X1 = _mm_xor_si128(X1, _mm_srli_epi32(T, 19)); + T = _mm_add_epi32(X1, X2); + X0 = _mm_xor_si128(X0, _mm_slli_epi32(T, 18)); + X0 = _mm_xor_si128(X0, _mm_srli_epi32(T, 14)); + + /* Rearrange data. */ + X1 = _mm_shuffle_epi32(X1, 0x39); + X2 = _mm_shuffle_epi32(X2, 0x4E); + X3 = _mm_shuffle_epi32(X3, 0x93); + } + + B[0] = _mm_add_epi32(B[0], X0); + B[1] = _mm_add_epi32(B[1], X1); + B[2] = _mm_add_epi32(B[2], X2); + B[3] = _mm_add_epi32(B[3], X3); +} + +/** + * blockmix_salsa8(Bin, Bout, X, r): + * Compute Bout = BlockMix_{salsa20/8, r}(Bin). The input Bin must be 128r + * bytes in length; the output Bout must also be the same size. The + * temporary space X must be 64 bytes. + */ +static void +blockmix_salsa8(__m128i * Bin, __m128i * Bout, __m128i * X, size_t r) +{ + size_t i; + + /* 1: X <-- B_{2r - 1} */ + blkcpy(X, &Bin[8 * r - 4], 64); + + /* 2: for i = 0 to 2r - 1 do */ + for (i = 0; i < r; i++) { + /* 3: X <-- H(X \xor B_i) */ + blkxor(X, &Bin[i * 8], 64); + salsa20_8(X); + + /* 4: Y_i <-- X */ + /* 6: B' <-- (Y_0, Y_2 ... Y_{2r-2}, Y_1, Y_3 ... Y_{2r-1}) */ + blkcpy(&Bout[i * 4], X, 64); + + /* 3: X <-- H(X \xor B_i) */ + blkxor(X, &Bin[i * 8 + 4], 64); + salsa20_8(X); + + /* 4: Y_i <-- X */ + /* 6: B' <-- (Y_0, Y_2 ... Y_{2r-2}, Y_1, Y_3 ... Y_{2r-1}) */ + blkcpy(&Bout[(r + i) * 4], X, 64); + } +} + +/** + * integerify(B, r): + * Return the result of parsing B_{2r-1} as a little-endian integer. + */ +static uint64_t +integerify(void * B, size_t r) +{ + uint32_t * X = (void *)((uintptr_t)(B) + (2 * r - 1) * 64); + + return (((uint64_t)(X[13]) << 32) + X[0]); +} + +/** + * smix(B, r, N, V, XY): + * Compute B = SMix_r(B, N). The input B must be 128r bytes in length; + * the temporary storage V must be 128rN bytes in length; the temporary + * storage XY must be 256r + 64 bytes in length. The value N must be a + * power of 2 greater than 1. The arrays B, V, and XY must be aligned to a + * multiple of 64 bytes. + */ +void +smix(uint8_t * B, size_t r, uint64_t N, void * V, void * XY) +{ + __m128i * X = XY; + __m128i * Y = (void *)((uintptr_t)(XY) + 128 * r); + __m128i * Z = (void *)((uintptr_t)(XY) + 256 * r); + uint32_t * X32 = (void *)X; + uint64_t i, j; + size_t k; + + /* 1: X <-- B */ + for (k = 0; k < 2 * r; k++) { + for (i = 0; i < 16; i++) { + X32[k * 16 + i] = + le32dec(&B[(k * 16 + (i * 5 % 16)) * 4]); + } + } + + /* 2: for i = 0 to N - 1 do */ + for (i = 0; i < N; i += 2) { + /* 3: V_i <-- X */ + blkcpy((void *)((uintptr_t)(V) + i * 128 * r), X, 128 * r); + + /* 4: X <-- H(X) */ + blockmix_salsa8(X, Y, Z, r); + + /* 3: V_i <-- X */ + blkcpy((void *)((uintptr_t)(V) + (i + 1) * 128 * r), + Y, 128 * r); + + /* 4: X <-- H(X) */ + blockmix_salsa8(Y, X, Z, r); + } + + /* 6: for i = 0 to N - 1 do */ + for (i = 0; i < N; i += 2) { + /* 7: j <-- Integerify(X) mod N */ + j = integerify(X, r) & (N - 1); + + /* 8: X <-- H(X \xor V_j) */ + blkxor(X, (void *)((uintptr_t)(V) + j * 128 * r), 128 * r); + blockmix_salsa8(X, Y, Z, r); + + /* 7: j <-- Integerify(X) mod N */ + j = integerify(Y, r) & (N - 1); + + /* 8: X <-- H(X \xor V_j) */ + blkxor(Y, (void *)((uintptr_t)(V) + j * 128 * r), 128 * r); + blockmix_salsa8(Y, X, Z, r); + } + + /* 10: B' <-- X */ + for (k = 0; k < 2 * r; k++) { + for (i = 0; i < 16; i++) { + le32enc(&B[(k * 16 + (i * 5 % 16)) * 4], + X32[k * 16 + i]); + } + } +} + +/** + * crypto_scrypt(passwd, passwdlen, salt, saltlen, N, r, p, buf, buflen): + * Compute scrypt(passwd[0 .. passwdlen - 1], salt[0 .. saltlen - 1], N, r, + * p, buflen) and write the result into buf. The parameters r, p, and buflen + * must satisfy r * p < 2^30 and buflen <= (2^32 - 1) * 32. The parameter N + * must be a power of 2 greater than 1. + * + * Return 0 on success; or -1 on error. + */ +int +crypto_scrypt(const uint8_t * passwd, size_t passwdlen, + const uint8_t * salt, size_t saltlen, uint64_t N, uint32_t r, uint32_t p, + uint8_t * buf, size_t buflen) +{ + void * B0, * V0, * XY0; + uint8_t * B; + uint32_t * V; + uint32_t * XY; + uint32_t i; + + /* Sanity-check parameters. */ +#if SIZE_MAX > UINT32_MAX + if (buflen > (((uint64_t)(1) << 32) - 1) * 32) { + errno = EFBIG; + goto err0; + } +#endif + if ((uint64_t)(r) * (uint64_t)(p) >= (1 << 30)) { + errno = EFBIG; + goto err0; + } + if (((N & (N - 1)) != 0) || (N == 0)) { + errno = EINVAL; + goto err0; + } + if ((r > SIZE_MAX / 128 / p) || +#if SIZE_MAX / 256 <= UINT32_MAX + (r > (SIZE_MAX - 64) / 256) || +#endif + (N > SIZE_MAX / 128 / r)) { + errno = ENOMEM; + goto err0; + } + + /* Allocate memory. */ +#ifdef HAVE_POSIX_MEMALIGN + if ((errno = posix_memalign(&B0, 64, 128 * r * p)) != 0) + goto err0; + B = (uint8_t *)(B0); + if ((errno = posix_memalign(&XY0, 64, 256 * r + 64)) != 0) + goto err1; + XY = (uint32_t *)(XY0); +#ifndef MAP_ANON + if ((errno = posix_memalign(&V0, 64, 128 * r * N)) != 0) + goto err2; + V = (uint32_t *)(V0); +#endif +#else + if ((B0 = malloc(128 * r * p + 63)) == NULL) + goto err0; + B = (uint8_t *)(((uintptr_t)(B0) + 63) & ~ (uintptr_t)(63)); + if ((XY0 = malloc(256 * r + 64 + 63)) == NULL) + goto err1; + XY = (uint32_t *)(((uintptr_t)(XY0) + 63) & ~ (uintptr_t)(63)); +#ifndef MAP_ANON + if ((V0 = malloc(128 * r * N + 63)) == NULL) + goto err2; + V = (uint32_t *)(((uintptr_t)(V0) + 63) & ~ (uintptr_t)(63)); +#endif +#endif +#ifdef MAP_ANON + if ((V0 = mmap(NULL, 128 * r * N, PROT_READ | PROT_WRITE, +#ifdef MAP_NOCORE + MAP_ANON | MAP_PRIVATE | MAP_NOCORE, +#else + MAP_ANON | MAP_PRIVATE, +#endif + -1, 0)) == MAP_FAILED) + goto err2; + V = (uint32_t *)(V0); +#endif + + /* 1: (B_0 ... B_{p-1}) <-- PBKDF2(P, S, 1, p * MFLen) */ + PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, 1, B, p * 128 * r); + + /* 2: for i = 0 to p - 1 do */ + for (i = 0; i < p; i++) { + /* 3: B_i <-- MF(B_i, N) */ + smix(&B[i * 128 * r], r, N, V, XY); + } + + /* 5: DK <-- PBKDF2(P, B, 1, dkLen) */ + PBKDF2_SHA256(passwd, passwdlen, B, p * 128 * r, 1, buf, buflen); + + /* Free memory. */ +#ifdef MAP_ANON + if (munmap(V0, 128 * r * N)) + goto err2; +#else + free(V0); +#endif + free(XY0); + free(B0); + + /* Success! */ + return (0); + +err2: + free(XY0); +err1: + free(B0); +err0: + /* Failure! */ + return (-1); +} diff --git a/outside/scrypt/crypto_scrypt.h b/outside/scrypt/crypto_scrypt.h new file mode 100644 index 0000000000..b88be09d85 --- /dev/null +++ b/outside/scrypt/crypto_scrypt.h @@ -0,0 +1,51 @@ +/*- + * Copyright 2009 Colin Percival + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file was originally written by Colin Percival as part of the Tarsnap + * online backup system. + */ +#ifndef _CRYPTO_SCRYPT_H_ +#define _CRYPTO_SCRYPT_H_ + +#include +#include + +void smix(uint8_t *, size_t, uint64_t, void *, void *); +void PBKDF2_SHA256(const uint8_t *, size_t, const uint8_t *, size_t, + uint64_t, uint8_t *, size_t); + +/** + * crypto_scrypt(passwd, passwdlen, salt, saltlen, N, r, p, buf, buflen): + * Compute scrypt(passwd[0 .. passwdlen - 1], salt[0 .. saltlen - 1], N, r, + * p, buflen) and write the result into buf. The parameters r, p, and buflen + * must satisfy r * p < 2^30 and buflen <= (2^32 - 1) * 32. The parameter N + * must be a power of 2 greater than 1. + * + * Return 0 on success; or -1 on error. + */ +int crypto_scrypt(const uint8_t *, size_t, const uint8_t *, size_t, uint64_t, + uint32_t, uint32_t, uint8_t *, size_t); + +#endif /* !_CRYPTO_SCRYPT_H_ */ diff --git a/outside/scrypt/scrypt.a b/outside/scrypt/scrypt.a new file mode 100644 index 0000000000..94106a8660 Binary files /dev/null and b/outside/scrypt/scrypt.a differ diff --git a/outside/scrypt/sha256.c b/outside/scrypt/sha256.c new file mode 100644 index 0000000000..d2f915f1a0 --- /dev/null +++ b/outside/scrypt/sha256.c @@ -0,0 +1,411 @@ +/*- + * Copyright 2005,2007,2009 Colin Percival + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +#include +#include + +#include "sysendian.h" + +#include "sha256.h" + +/* + * Encode a length len/4 vector of (uint32_t) into a length len vector of + * (unsigned char) in big-endian form. Assumes len is a multiple of 4. + */ +static void +be32enc_vect(unsigned char *dst, const uint32_t *src, size_t len) +{ + size_t i; + + for (i = 0; i < len / 4; i++) + be32enc(dst + i * 4, src[i]); +} + +/* + * Decode a big-endian length len vector of (unsigned char) into a length + * len/4 vector of (uint32_t). Assumes len is a multiple of 4. + */ +static void +be32dec_vect(uint32_t *dst, const unsigned char *src, size_t len) +{ + size_t i; + + for (i = 0; i < len / 4; i++) + dst[i] = be32dec(src + i * 4); +} + +/* Elementary functions used by SHA256 */ +#define Ch(x, y, z) ((x & (y ^ z)) ^ z) +#define Maj(x, y, z) ((x & (y | z)) | (y & z)) +#define SHR(x, n) (x >> n) +#define ROTR(x, n) ((x >> n) | (x << (32 - n))) +#define S0(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22)) +#define S1(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25)) +#define s0(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ SHR(x, 3)) +#define s1(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ SHR(x, 10)) + +/* SHA256 round function */ +#define RND(a, b, c, d, e, f, g, h, k) \ + t0 = h + S1(e) + Ch(e, f, g) + k; \ + t1 = S0(a) + Maj(a, b, c); \ + d += t0; \ + h = t0 + t1; + +/* Adjusted round function for rotating state */ +#define RNDr(S, W, i, k) \ + RND(S[(64 - i) % 8], S[(65 - i) % 8], \ + S[(66 - i) % 8], S[(67 - i) % 8], \ + S[(68 - i) % 8], S[(69 - i) % 8], \ + S[(70 - i) % 8], S[(71 - i) % 8], \ + W[i] + k) + +/* + * SHA256 block compression function. The 256-bit state is transformed via + * the 512-bit input block to produce a new state. + */ +static void +SHA256_Transform(uint32_t * state, const unsigned char block[64]) +{ + uint32_t W[64]; + uint32_t S[8]; + uint32_t t0, t1; + int i; + + /* 1. Prepare message schedule W. */ + be32dec_vect(W, block, 64); + for (i = 16; i < 64; i++) + W[i] = s1(W[i - 2]) + W[i - 7] + s0(W[i - 15]) + W[i - 16]; + + /* 2. Initialize working variables. */ + memcpy(S, state, 32); + + /* 3. Mix. */ + RNDr(S, W, 0, 0x428a2f98); + RNDr(S, W, 1, 0x71374491); + RNDr(S, W, 2, 0xb5c0fbcf); + RNDr(S, W, 3, 0xe9b5dba5); + RNDr(S, W, 4, 0x3956c25b); + RNDr(S, W, 5, 0x59f111f1); + RNDr(S, W, 6, 0x923f82a4); + RNDr(S, W, 7, 0xab1c5ed5); + RNDr(S, W, 8, 0xd807aa98); + RNDr(S, W, 9, 0x12835b01); + RNDr(S, W, 10, 0x243185be); + RNDr(S, W, 11, 0x550c7dc3); + RNDr(S, W, 12, 0x72be5d74); + RNDr(S, W, 13, 0x80deb1fe); + RNDr(S, W, 14, 0x9bdc06a7); + RNDr(S, W, 15, 0xc19bf174); + RNDr(S, W, 16, 0xe49b69c1); + RNDr(S, W, 17, 0xefbe4786); + RNDr(S, W, 18, 0x0fc19dc6); + RNDr(S, W, 19, 0x240ca1cc); + RNDr(S, W, 20, 0x2de92c6f); + RNDr(S, W, 21, 0x4a7484aa); + RNDr(S, W, 22, 0x5cb0a9dc); + RNDr(S, W, 23, 0x76f988da); + RNDr(S, W, 24, 0x983e5152); + RNDr(S, W, 25, 0xa831c66d); + RNDr(S, W, 26, 0xb00327c8); + RNDr(S, W, 27, 0xbf597fc7); + RNDr(S, W, 28, 0xc6e00bf3); + RNDr(S, W, 29, 0xd5a79147); + RNDr(S, W, 30, 0x06ca6351); + RNDr(S, W, 31, 0x14292967); + RNDr(S, W, 32, 0x27b70a85); + RNDr(S, W, 33, 0x2e1b2138); + RNDr(S, W, 34, 0x4d2c6dfc); + RNDr(S, W, 35, 0x53380d13); + RNDr(S, W, 36, 0x650a7354); + RNDr(S, W, 37, 0x766a0abb); + RNDr(S, W, 38, 0x81c2c92e); + RNDr(S, W, 39, 0x92722c85); + RNDr(S, W, 40, 0xa2bfe8a1); + RNDr(S, W, 41, 0xa81a664b); + RNDr(S, W, 42, 0xc24b8b70); + RNDr(S, W, 43, 0xc76c51a3); + RNDr(S, W, 44, 0xd192e819); + RNDr(S, W, 45, 0xd6990624); + RNDr(S, W, 46, 0xf40e3585); + RNDr(S, W, 47, 0x106aa070); + RNDr(S, W, 48, 0x19a4c116); + RNDr(S, W, 49, 0x1e376c08); + RNDr(S, W, 50, 0x2748774c); + RNDr(S, W, 51, 0x34b0bcb5); + RNDr(S, W, 52, 0x391c0cb3); + RNDr(S, W, 53, 0x4ed8aa4a); + RNDr(S, W, 54, 0x5b9cca4f); + RNDr(S, W, 55, 0x682e6ff3); + RNDr(S, W, 56, 0x748f82ee); + RNDr(S, W, 57, 0x78a5636f); + RNDr(S, W, 58, 0x84c87814); + RNDr(S, W, 59, 0x8cc70208); + RNDr(S, W, 60, 0x90befffa); + RNDr(S, W, 61, 0xa4506ceb); + RNDr(S, W, 62, 0xbef9a3f7); + RNDr(S, W, 63, 0xc67178f2); + + /* 4. Mix local working variables into global state */ + for (i = 0; i < 8; i++) + state[i] += S[i]; + + /* Clean the stack. */ + memset(W, 0, 256); + memset(S, 0, 32); + t0 = t1 = 0; +} + +static unsigned char PAD[64] = { + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +/* Add padding and terminating bit-count. */ +static void +SHA256_Pad(SHA256_CTX * ctx) +{ + unsigned char len[8]; + uint32_t r, plen; + + /* + * Convert length to a vector of bytes -- we do this now rather + * than later because the length will change after we pad. + */ + be32enc_vect(len, ctx->count, 8); + + /* Add 1--64 bytes so that the resulting length is 56 mod 64 */ + r = (ctx->count[1] >> 3) & 0x3f; + plen = (r < 56) ? (56 - r) : (120 - r); + SHA256_Update(ctx, PAD, (size_t)plen); + + /* Add the terminating bit-count */ + SHA256_Update(ctx, len, 8); +} + +/* SHA-256 initialization. Begins a SHA-256 operation. */ +void +SHA256_Init(SHA256_CTX * ctx) +{ + + /* Zero bits processed so far */ + ctx->count[0] = ctx->count[1] = 0; + + /* Magic initialization constants */ + ctx->state[0] = 0x6A09E667; + ctx->state[1] = 0xBB67AE85; + ctx->state[2] = 0x3C6EF372; + ctx->state[3] = 0xA54FF53A; + ctx->state[4] = 0x510E527F; + ctx->state[5] = 0x9B05688C; + ctx->state[6] = 0x1F83D9AB; + ctx->state[7] = 0x5BE0CD19; +} + +/* Add bytes into the hash */ +void +SHA256_Update(SHA256_CTX * ctx, const void *in, size_t len) +{ + uint32_t bitlen[2]; + uint32_t r; + const unsigned char *src = in; + + /* Number of bytes left in the buffer from previous updates */ + r = (ctx->count[1] >> 3) & 0x3f; + + /* Convert the length into a number of bits */ + bitlen[1] = ((uint32_t)len) << 3; + bitlen[0] = (uint32_t)(len >> 29); + + /* Update number of bits */ + if ((ctx->count[1] += bitlen[1]) < bitlen[1]) + ctx->count[0]++; + ctx->count[0] += bitlen[0]; + + /* Handle the case where we don't need to perform any transforms */ + if (len < 64 - r) { + memcpy(&ctx->buf[r], src, len); + return; + } + + /* Finish the current block */ + memcpy(&ctx->buf[r], src, 64 - r); + SHA256_Transform(ctx->state, ctx->buf); + src += 64 - r; + len -= 64 - r; + + /* Perform complete blocks */ + while (len >= 64) { + SHA256_Transform(ctx->state, src); + src += 64; + len -= 64; + } + + /* Copy left over data into buffer */ + memcpy(ctx->buf, src, len); +} + +/* + * SHA-256 finalization. Pads the input data, exports the hash value, + * and clears the context state. + */ +void +SHA256_Final(unsigned char digest[32], SHA256_CTX * ctx) +{ + + /* Add padding */ + SHA256_Pad(ctx); + + /* Write the hash */ + be32enc_vect(digest, ctx->state, 32); + + /* Clear the context state */ + memset((void *)ctx, 0, sizeof(*ctx)); +} + +/* Initialize an HMAC-SHA256 operation with the given key. */ +void +HMAC_SHA256_Init(HMAC_SHA256_CTX * ctx, const void * _K, size_t Klen) +{ + unsigned char pad[64]; + unsigned char khash[32]; + const unsigned char * K = _K; + size_t i; + + /* If Klen > 64, the key is really SHA256(K). */ + if (Klen > 64) { + SHA256_Init(&ctx->ictx); + SHA256_Update(&ctx->ictx, K, Klen); + SHA256_Final(khash, &ctx->ictx); + K = khash; + Klen = 32; + } + + /* Inner SHA256 operation is SHA256(K xor [block of 0x36] || data). */ + SHA256_Init(&ctx->ictx); + memset(pad, 0x36, 64); + for (i = 0; i < Klen; i++) + pad[i] ^= K[i]; + SHA256_Update(&ctx->ictx, pad, 64); + + /* Outer SHA256 operation is SHA256(K xor [block of 0x5c] || hash). */ + SHA256_Init(&ctx->octx); + memset(pad, 0x5c, 64); + for (i = 0; i < Klen; i++) + pad[i] ^= K[i]; + SHA256_Update(&ctx->octx, pad, 64); + + /* Clean the stack. */ + memset(khash, 0, 32); +} + +/* Add bytes to the HMAC-SHA256 operation. */ +void +HMAC_SHA256_Update(HMAC_SHA256_CTX * ctx, const void *in, size_t len) +{ + + /* Feed data to the inner SHA256 operation. */ + SHA256_Update(&ctx->ictx, in, len); +} + +/* Finish an HMAC-SHA256 operation. */ +void +HMAC_SHA256_Final(unsigned char digest[32], HMAC_SHA256_CTX * ctx) +{ + unsigned char ihash[32]; + + /* Finish the inner SHA256 operation. */ + SHA256_Final(ihash, &ctx->ictx); + + /* Feed the inner hash to the outer SHA256 operation. */ + SHA256_Update(&ctx->octx, ihash, 32); + + /* Finish the outer SHA256 operation. */ + SHA256_Final(digest, &ctx->octx); + + /* Clean the stack. */ + memset(ihash, 0, 32); +} + +/** + * PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, c, buf, dkLen): + * Compute PBKDF2(passwd, salt, c, dkLen) using HMAC-SHA256 as the PRF, and + * write the output to buf. The value dkLen must be at most 32 * (2^32 - 1). + */ +void +PBKDF2_SHA256(const uint8_t * passwd, size_t passwdlen, const uint8_t * salt, + size_t saltlen, uint64_t c, uint8_t * buf, size_t dkLen) +{ + HMAC_SHA256_CTX PShctx, hctx; + size_t i; + uint8_t ivec[4]; + uint8_t U[32]; + uint8_t T[32]; + uint64_t j; + int k; + size_t clen; + + /* Compute HMAC state after processing P and S. */ + HMAC_SHA256_Init(&PShctx, passwd, passwdlen); + HMAC_SHA256_Update(&PShctx, salt, saltlen); + + /* Iterate through the blocks. */ + for (i = 0; i * 32 < dkLen; i++) { + /* Generate INT(i + 1). */ + be32enc(ivec, (uint32_t)(i + 1)); + + /* Compute U_1 = PRF(P, S || INT(i)). */ + memcpy(&hctx, &PShctx, sizeof(HMAC_SHA256_CTX)); + HMAC_SHA256_Update(&hctx, ivec, 4); + HMAC_SHA256_Final(U, &hctx); + + /* T_i = U_1 ... */ + memcpy(T, U, 32); + + for (j = 2; j <= c; j++) { + /* Compute U_j. */ + HMAC_SHA256_Init(&hctx, passwd, passwdlen); + HMAC_SHA256_Update(&hctx, U, 32); + HMAC_SHA256_Final(U, &hctx); + + /* ... xor U_j ... */ + for (k = 0; k < 32; k++) + T[k] ^= U[k]; + } + + /* Copy as many bytes as necessary into buf. */ + clen = dkLen - i * 32; + if (clen > 32) + clen = 32; + memcpy(&buf[i * 32], T, clen); + } + + /* Clean PShctx, since we never called _Final on it. */ + memset(&PShctx, 0, sizeof(HMAC_SHA256_CTX)); +} diff --git a/outside/scrypt/sha256.h b/outside/scrypt/sha256.h new file mode 100644 index 0000000000..289a5232f6 --- /dev/null +++ b/outside/scrypt/sha256.h @@ -0,0 +1,62 @@ +/*- + * Copyright 2005,2007,2009 Colin Percival + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD: src/lib/libmd/sha256.h,v 1.2 2006/01/17 15:35:56 phk Exp $ + */ + +#ifndef _SHA256_H_ +#define _SHA256_H_ + +#include + +#include + +typedef struct SHA256Context { + uint32_t state[8]; + uint32_t count[2]; + unsigned char buf[64]; +} SHA256_CTX; + +typedef struct HMAC_SHA256Context { + SHA256_CTX ictx; + SHA256_CTX octx; +} HMAC_SHA256_CTX; + +void SHA256_Init(SHA256_CTX *); +void SHA256_Update(SHA256_CTX *, const void *, size_t); +void SHA256_Final(unsigned char [32], SHA256_CTX *); +void HMAC_SHA256_Init(HMAC_SHA256_CTX *, const void *, size_t); +void HMAC_SHA256_Update(HMAC_SHA256_CTX *, const void *, size_t); +void HMAC_SHA256_Final(unsigned char [32], HMAC_SHA256_CTX *); + +/** + * PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, c, buf, dkLen): + * Compute PBKDF2(passwd, salt, c, dkLen) using HMAC-SHA256 as the PRF, and + * write the output to buf. The value dkLen must be at most 32 * (2^32 - 1). + */ +void PBKDF2_SHA256(const uint8_t *, size_t, const uint8_t *, size_t, + uint64_t, uint8_t *, size_t); + +#endif /* !_SHA256_H_ */ diff --git a/outside/scrypt/sysendian.h b/outside/scrypt/sysendian.h new file mode 100644 index 0000000000..207fb06931 --- /dev/null +++ b/outside/scrypt/sysendian.h @@ -0,0 +1,129 @@ +/*- + * Copyright 2007-2009 Colin Percival + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file was originally written by Colin Percival as part of the Tarsnap + * online backup system. + */ +#ifndef _SYSENDIAN_H_ +#define _SYSENDIAN_H_ + +#if defined(U3_OS_bsd) +#include +#else +#include + +static inline uint32_t +be32dec(const void *pp) +{ + const uint8_t *p = (uint8_t const *)pp; + + return ((uint32_t)(p[3]) + ((uint32_t)(p[2]) << 8) + + ((uint32_t)(p[1]) << 16) + ((uint32_t)(p[0]) << 24)); +} + +static inline void +be32enc(void *pp, uint32_t x) +{ + uint8_t * p = (uint8_t *)pp; + + p[3] = x & 0xff; + p[2] = (x >> 8) & 0xff; + p[1] = (x >> 16) & 0xff; + p[0] = (x >> 24) & 0xff; +} + +static inline uint64_t +be64dec(const void *pp) +{ + const uint8_t *p = (uint8_t const *)pp; + + return ((uint64_t)(p[7]) + ((uint64_t)(p[6]) << 8) + + ((uint64_t)(p[5]) << 16) + ((uint64_t)(p[4]) << 24) + + ((uint64_t)(p[3]) << 32) + ((uint64_t)(p[2]) << 40) + + ((uint64_t)(p[1]) << 48) + ((uint64_t)(p[0]) << 56)); +} + +static inline void +be64enc(void *pp, uint64_t x) +{ + uint8_t * p = (uint8_t *)pp; + + p[7] = x & 0xff; + p[6] = (x >> 8) & 0xff; + p[5] = (x >> 16) & 0xff; + p[4] = (x >> 24) & 0xff; + p[3] = (x >> 32) & 0xff; + p[2] = (x >> 40) & 0xff; + p[1] = (x >> 48) & 0xff; + p[0] = (x >> 56) & 0xff; +} + +static inline uint32_t +le32dec(const void *pp) +{ + const uint8_t *p = (uint8_t const *)pp; + + return ((uint32_t)(p[0]) + ((uint32_t)(p[1]) << 8) + + ((uint32_t)(p[2]) << 16) + ((uint32_t)(p[3]) << 24)); +} + +static inline void +le32enc(void *pp, uint32_t x) +{ + uint8_t * p = (uint8_t *)pp; + + p[0] = x & 0xff; + p[1] = (x >> 8) & 0xff; + p[2] = (x >> 16) & 0xff; + p[3] = (x >> 24) & 0xff; +} + +static inline uint64_t +le64dec(const void *pp) +{ + const uint8_t *p = (uint8_t const *)pp; + + return ((uint64_t)(p[0]) + ((uint64_t)(p[1]) << 8) + + ((uint64_t)(p[2]) << 16) + ((uint64_t)(p[3]) << 24) + + ((uint64_t)(p[4]) << 32) + ((uint64_t)(p[5]) << 40) + + ((uint64_t)(p[6]) << 48) + ((uint64_t)(p[7]) << 56)); +} + +static inline void +le64enc(void *pp, uint64_t x) +{ + uint8_t * p = (uint8_t *)pp; + + p[0] = x & 0xff; + p[1] = (x >> 8) & 0xff; + p[2] = (x >> 16) & 0xff; + p[3] = (x >> 24) & 0xff; + p[4] = (x >> 32) & 0xff; + p[5] = (x >> 40) & 0xff; + p[6] = (x >> 48) & 0xff; + p[7] = (x >> 56) & 0xff; +} +#endif +#endif /* !_SYSENDIAN_H_ */