luckyimnotanigger/mkp224o
1
0
Fork 0
mirror of https://github.com/cathugger/mkp224o.git synced 2025-05-25 11:22:22 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

amd64-{51-30k,64-24k} impls should work now

Browse source
This commit is contained in:
cathugger 2017-09-27 15:41:59 +03:00
parent 59f318aa64
commit 966cf38205
16 changed files with 135 additions and 66 deletions
Download patch file Download diff file Expand all files Collapse all files

14
ed25519/amd64-51-30k/sign.c
View file

@ -10,24 +10,18 @@ int crypto_sign(
)
{
unsigned char pk[32];
unsigned char az[64];
unsigned char nonce[64];
unsigned char hram[64];
sc25519 sck, scs, scsk;
ge25519 ger;
memmove(pk,sk + 32,32);
/* sk: 32-byte scalar a, 32-byte randomizer z */
crypto_sign_pubkey(pk,sk);
/* pk: 32-byte public key A */
crypto_hash_sha512(az,sk,32);
az[0] &= 248;
az[31] &= 127;
az[31] |= 64;
/* az: 32-byte scalar a, 32-byte randomizer z */
*smlen = mlen + 64;
memmove(sm + 64,m,mlen);
memmove(sm + 32,az + 32,32);
memmove(sm + 32,sk + 32,32);
/* sm: 32-byte uninit, 32-byte z, mlen-byte m */
crypto_hash_sha512(nonce, sm+32, mlen+32);
@ -45,7 +39,7 @@ int crypto_sign(
/* hram: 64-byte H(R,A,m) */
sc25519_from64bytes(&scs, hram);
sc25519_from32bytes(&scsk, az);
sc25519_from32bytes(&scsk, sk);
sc25519_mul(&scs, &scs, &scsk);
sc25519_add(&scs, &scs, &sck);
/* scs: S = nonce + H(R,A,m)a */