frost/secp256k1-zkp
3
0 Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

modules, tests: Port bitcoin-core/secp256k1#1777 and bitcoin-core/secp256k1#1824 to zkp-specific code

Browse Source
This commit is contained in:
DarkWindman committed 2026-04-20 15:39:54 +03:00
1 parent f7e7e6bb15
commit baac08d207
28 files changed
+259 -224
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

src/eccommit_impl.h
+10 -10
View File
@@ -25,42 +25,42 @@ static int secp256k1_ec_commit_pubkey_serialize_const(secp256k1_ge *pubp, unsign
}
/* Compute an ec commitment tweak as hash(pubp, data). */
static int secp256k1_ec_commit_tweak(unsigned char *tweak32, secp256k1_ge* pubp, secp256k1_sha256* sha, const unsigned char *data, size_t data_size)
static int secp256k1_ec_commit_tweak(const secp256k1_hash_ctx *hash_ctx, unsigned char *tweak32, secp256k1_ge* pubp, secp256k1_sha256* sha, const unsigned char *data, size_t data_size)
{
unsigned char rbuf[33];
if (!secp256k1_ec_commit_pubkey_serialize_const(pubp, rbuf)) {
return 0;
}
secp256k1_sha256_write(sha, rbuf, sizeof(rbuf));
secp256k1_sha256_write(sha, data, data_size);
secp256k1_sha256_finalize(sha, tweak32);
secp256k1_sha256_write(hash_ctx, sha, rbuf, sizeof(rbuf));
secp256k1_sha256_write(hash_ctx, sha, data, data_size);
secp256k1_sha256_finalize(hash_ctx, sha, tweak32);
return 1;
}
/* Compute an ec commitment as pubp + hash(pubp, data)*G. */
static int secp256k1_ec_commit(secp256k1_ge* commitp, const secp256k1_ge* pubp, secp256k1_sha256* sha, const unsigned char *data, size_t data_size) {
static int secp256k1_ec_commit(const secp256k1_hash_ctx *hash_ctx, secp256k1_ge* commitp, const secp256k1_ge* pubp, secp256k1_sha256* sha, const unsigned char *data, size_t data_size) {
unsigned char tweak[32];
*commitp = *pubp;
return secp256k1_ec_commit_tweak(tweak, commitp, sha, data, data_size)
return secp256k1_ec_commit_tweak(hash_ctx, tweak, commitp, sha, data, data_size)
&& secp256k1_ec_pubkey_tweak_add_helper(commitp, tweak);
}
/* Compute the seckey of an ec commitment from the original secret key of the pubkey as seckey +
* hash(pubp, data). */
static int secp256k1_ec_commit_seckey(secp256k1_scalar* seckey, secp256k1_ge* pubp, secp256k1_sha256* sha, const unsigned char *data, size_t data_size) {
static int secp256k1_ec_commit_seckey(const secp256k1_hash_ctx *hash_ctx, secp256k1_scalar* seckey, secp256k1_ge* pubp, secp256k1_sha256* sha, const unsigned char *data, size_t data_size) {
unsigned char tweak[32];
return secp256k1_ec_commit_tweak(tweak, pubp, sha, data, data_size)
return secp256k1_ec_commit_tweak(hash_ctx, tweak, pubp, sha, data, data_size)
&& secp256k1_ec_seckey_tweak_add_helper(seckey, tweak);
}
/* Verify an ec commitment as pubp + hash(pubp, data)*G ?= commitment. */
static int secp256k1_ec_commit_verify(const secp256k1_ge* commitp, const secp256k1_ge* pubp, secp256k1_sha256* sha, const unsigned char *data, size_t data_size) {
static int secp256k1_ec_commit_verify(const secp256k1_hash_ctx *hash_ctx, const secp256k1_ge* commitp, const secp256k1_ge* pubp, secp256k1_sha256* sha, const unsigned char *data, size_t data_size) {
secp256k1_gej pj;
secp256k1_ge p;
if (!secp256k1_ec_commit(&p, pubp, sha, data, data_size)) {
if (!secp256k1_ec_commit(hash_ctx, &p, pubp, sha, data, data_size)) {
return 0;
}