angd-dev/data-lite-c
1
0
Fork 0
Code Pull Requests Releases Activity

Upgrade libtomcrypt

Browse Source
This commit is contained in:
Oleksii Zghurskyi
2025-10-24 19:33:21 +03:00
parent d770dd8df3
commit acc69bb8ad
157 changed files with 922 additions and 761 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
Sources/DataLiteC/libtomcrypt/pk/ecc/ecc_sign_hash_internal.c
View File

@@ -57,8 +57,12 @@ int ecc_sign_hash_internal(const unsigned char *in, unsigned long inlen,
/* make up a key and export the public copy */
do {
if ((err = ecc_copy_curve(key, &pubkey)) != CRYPT_OK) { goto errnokey; }
if ((err = ecc_generate_key(prng, wprng, &pubkey)) != CRYPT_OK) { goto errnokey; }
if ((err = ecc_copy_curve(key, &pubkey)) != CRYPT_OK) { goto errnokey; }
if (key->rfc6979_hash_alg != NULL) {
if ((err = ecc_rfc6979_key(key, in, inlen, &pubkey)) != CRYPT_OK) { goto errnokey; }
} else {
if ((err = ecc_generate_key(prng, wprng, &pubkey)) != CRYPT_OK) { goto errnokey; }
}
/* find r = x1 mod n */
if ((err = ltc_mp_mod(pubkey.pubkey.x, p, r)) != CRYPT_OK) { goto error; }
@@ -78,7 +82,7 @@ int ecc_sign_hash_internal(const unsigned char *in, unsigned long inlen,
if (ltc_mp_iszero(r) == LTC_MP_YES) {
ecc_free(&pubkey);
} else {
if ((err = rand_bn_upto(b, p, prng, wprng)) != CRYPT_OK) { goto error; } /* b = blinding value */
if ((err = rand_bn_upto(b, p, prng, wprng)) != CRYPT_OK) { goto error; } /* b = blinding value */
/* find s = (e + xr)/k */
if ((err = ltc_mp_mulmod(pubkey.k, b, p, pubkey.k)) != CRYPT_OK) { goto error; } /* k = kb */
if ((err = ltc_mp_invmod(pubkey.k, p, pubkey.k)) != CRYPT_OK) { goto error; } /* k = 1/kb */