QPQ-AG/libsodium
12
0
Fork 0
mirror of https://github.com/jedisct1/libsodium.git synced 2026-08-25 08:37:13 +09:00
Code Issues Packages Projects Releases Wiki Activity

Combine crypto_hash_sha512_update() calls

Browse Source
This commit is contained in:
Frank Denis
2014-07-10 15:57:14 -07:00
parent 0b065e0748
commit f7c79dbea7
1 changed files with 4 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/libsodium/crypto_sign/ed25519/ref10/sign.c
+4 -7
View File
@@ -16,8 +16,6 @@ crypto_sign_detached(unsigned char *sig, unsigned long long *siglen,
unsigned char az[64];
unsigned char nonce[64];
unsigned char hram[64];
unsigned char *sig_R = sig;
unsigned char *sig_S = sig + 32;
ge_p3 R;
memmove(pk, sk + 32, 32);
@@ -32,20 +30,19 @@ crypto_sign_detached(unsigned char *sig, unsigned long long *siglen,
crypto_hash_sha512_update(&hs, m, mlen);
crypto_hash_sha512_final(&hs, nonce);
memmove(sig_S, pk, 32);
memmove(sig + 32, pk, 32);
sc_reduce(nonce);
ge_scalarmult_base(&R, nonce);
ge_p3_tobytes(sig_R, &R);
ge_p3_tobytes(sig, &R);
crypto_hash_sha512_init(&hs);
crypto_hash_sha512_update(&hs, sig_R, 32);
crypto_hash_sha512_update(&hs, sig_S, 32);
crypto_hash_sha512_update(&hs, sig, 64);
crypto_hash_sha512_update(&hs, m, mlen);
crypto_hash_sha512_final(&hs, hram);
sc_reduce(hram);
sc_muladd(sig_S, hram, az, nonce);
sc_muladd(sig + 32, hram, az, nonce);
if (siglen != NULL) {
*siglen = 64U;