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add amd64-{51-30k,64-24k} from SUPERCOP, now use autoconf

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cathugger
2017-09-27 02:35:56 +03:00
parent ad9c6592ed
commit 81cebae449
162 changed files with 79451 additions and 277 deletions
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57
ed25519/amd64-51-30k/sign.c Normal file
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@@ -0,0 +1,57 @@
#include <string.h>
#include "crypto_sign.h"
#include "crypto_hash_sha512.h"
#include "ge25519.h"
int crypto_sign(
unsigned char *sm,unsigned long long *smlen,
const unsigned char *m,unsigned long long mlen,
const unsigned char *sk
)
{
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);
/* 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);
/* sm: 32-byte uninit, 32-byte z, mlen-byte m */
crypto_hash_sha512(nonce, sm+32, mlen+32);
/* nonce: 64-byte H(z,m) */
sc25519_from64bytes(&sck, nonce);
ge25519_scalarmult_base(&ger, &sck);
ge25519_pack(sm, &ger);
/* sm: 32-byte R, 32-byte z, mlen-byte m */
memmove(sm + 32,pk,32);
/* sm: 32-byte R, 32-byte A, mlen-byte m */
crypto_hash_sha512(hram,sm,mlen + 64);
/* hram: 64-byte H(R,A,m) */
sc25519_from64bytes(&scs, hram);
sc25519_from32bytes(&scsk, az);
sc25519_mul(&scs, &scs, &scsk);
sc25519_add(&scs, &scs, &sck);
/* scs: S = nonce + H(R,A,m)a */
sc25519_to32bytes(sm + 32,&scs);
/* sm: 32-byte R, 32-byte S, mlen-byte m */
return 0;
}