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ed: sign

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This commit is contained in:
Matthew LeVan 2023-12-18 14:08:59 -05:00
parent 561701aaf1
commit 228ab7f5b7
3 changed files with 40 additions and 14 deletions
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2
rust/ares_crypto/Cargo.lock generated
View File

@ -302,6 +302,7 @@ dependencies = [
"ed25519",
"rand_core",
"sha2",
"signature",
"subtle",
]
@ -676,6 +677,7 @@ version = "2.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "77549399552de45a898a580c1b41d445bf730df867cc44e6c0233bbc4b8329de"
dependencies = [
"digest",
"rand_core",
]

14
rust/ares_crypto/Cargo.toml
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@ -10,14 +10,14 @@ assert_no_alloc = "1.1.2"
# use this when debugging requires allocation (e.g. eprintln)
# assert_no_alloc = {version="1.1.2", features=["warn_debug"]}
aes-siv = { version = "0.7.0", features = ["heapless"], default-features = false }
ed25519-dalek = { version = "2.1.0", features = ["pkcs8", "rand_core"], default-features = false }
ed25519 = { version = "2.2.3" }
rand = { version = "0.8.5", features = ["std_rng"], default-features = false }
urcrypt-sys = { version = "0.1.1", optional = true }
sha2 = "0.10.8"
ibig = "0.3.6"
x25519-dalek = { version = "2.0.0", features = ["static_secrets"], default-features = false }
curve25519-dalek = "4.1.1"
ed25519-dalek = { version = "2.1.0", features = ["digest", "pkcs8", "rand_core"], default-features = false }
ed25519 = { version = "2.2.3" }
ibig = "0.3.6"
rand = { version = "0.8.5", features = ["std_rng"], default-features = false }
sha2 = "0.10.8"
urcrypt-sys = { version = "0.1.1", optional = true }
x25519-dalek = { version = "2.0.0", features = ["static_secrets"], default-features = false }
[features]
# XX turn off test_vs_urcrypt after development

38
rust/ares_crypto/src/ed25519.rs
View File

@ -1,5 +1,7 @@
use curve25519_dalek::{edwards::CompressedEdwardsY, EdwardsPoint, MontgomeryPoint};
use ed25519_dalek::{SigningKey, VerifyingKey};
use sha2::{Digest, Sha512};
use curve25519_dalek::edwards::CompressedEdwardsY;
use ed25519_dalek::{SigningKey, VerifyingKey, Signer};
use x25519_dalek::{PublicKey, StaticSecret};
/// Generate a public key from the given seed and write it to the given output slice.
@ -25,6 +27,12 @@ pub fn ac_ed_shar(public: &[u8; 32], seed: &[u8; 32], out: &mut [u8; 32]) {
}
}
pub fn ac_ed_sign(msg: &[u8], seed: &[u8; 32], out: &mut [u8; 64]) {
let signing_key = SigningKey::from_bytes(seed);
let signature = signing_key.sign(msg);
*out = signature.to_bytes();
}
#[cfg(test)]
mod tests {
use super::ac_ed_puck;
@ -47,9 +55,9 @@ mod tests {
#[cfg(test)]
#[cfg(feature = "test_vs_urcrypt")]
mod ucrypt_tests {
use super::{ac_ed_puck, ac_ed_shar};
use super::{ac_ed_puck, ac_ed_shar, ac_ed_sign};
use ibig::ubig;
use urcrypt_sys::{urcrypt_ed_puck, urcrypt_ed_shar};
use urcrypt_sys::{urcrypt_ed_puck, urcrypt_ed_shar, urcrypt_ed_sign};
#[test]
fn test_ed_puck() {
@ -72,9 +80,8 @@ mod ucrypt_tests {
let mut public_key: [u8; 32] = [0; 32];
public_key.copy_from_slice(public_key_src);
let seed_src =
&ubig!(_0x4ccd089b28ff96da9db6c346ec114e0f5b8a319f35aba624da8cf6ed4fb8a6fb)
.to_le_bytes();
let seed_src = &ubig!(_0x4ccd089b28ff96da9db6c346ec114e0f5b8a319f35aba624da8cf6ed4fb8a6fb)
.to_le_bytes();
let mut seed: [u8; 32] = [0; 32];
seed.copy_from_slice(seed_src);
@ -86,4 +93,21 @@ mod ucrypt_tests {
assert_eq!(ac_out, uc_out);
}
#[test]
fn test_ed_sign() {
let msg = b"test";
let seed_src = &ubig!(_0x4ccd089b28ff96da9db6c346ec114e0f5b8a319f35aba624da8cf6ed4fb8a6fb)
.to_le_bytes();
let mut seed: [u8; 32] = [0; 32];
seed.copy_from_slice(seed_src);
let mut uc_out: [u8; 64] = [0; 64];
unsafe { urcrypt_ed_sign(msg.as_ptr(), msg.len(), seed.as_ptr(), uc_out.as_mut_ptr()) };
let mut ac_out: [u8; 64] = [0; 64];
ac_ed_sign(msg, &seed, &mut ac_out);
assert_eq!(ac_out, uc_out);
}
}