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

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DarkWindman
2026-04-02 18:03:37 +03:00
parent f7e7e6bb15
commit baac08d207
28 changed files with 259 additions and 224 deletions
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22
src/tests.c
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@@ -4387,6 +4387,7 @@ static void run_ec_combine(void) {
}
static void test_ec_commit(void) {
const secp256k1_hash_ctx *hash_ctx = secp256k1_get_hash_context(CTX);
secp256k1_scalar seckey_s;
secp256k1_ge pubkey;
secp256k1_gej pubkeyj;
@@ -4402,29 +4403,30 @@ static void test_ec_commit(void) {
/* Commit to data and verify */
secp256k1_sha256_initialize(&sha);
CHECK(secp256k1_ec_commit(&commitment, &pubkey, &sha, data, 32) == 1);
CHECK(secp256k1_ec_commit(hash_ctx, &commitment, &pubkey, &sha, data, 32) == 1);
secp256k1_sha256_initialize(&sha);
CHECK(secp256k1_ec_commit_verify(&commitment, &pubkey, &sha, data, 32) == 1);
CHECK(secp256k1_ec_commit_verify(hash_ctx, &commitment, &pubkey, &sha, data, 32) == 1);
secp256k1_sha256_initialize(&sha);
CHECK(secp256k1_ec_commit_seckey(&seckey_s, &pubkey, &sha, data, 32) == 1);
CHECK(secp256k1_ec_commit_seckey(hash_ctx, &seckey_s, &pubkey, &sha, data, 32) == 1);
secp256k1_ecmult_gen(&CTX->ecmult_gen_ctx, &pubkeyj, &seckey_s);
secp256k1_gej_eq_ge_var(&pubkeyj, &commitment);
/* Check that verification fails with different data */
secp256k1_sha256_initialize(&sha);
CHECK(secp256k1_ec_commit_verify(&commitment, &pubkey, &sha, data, 31) == 0);
CHECK(secp256k1_ec_commit_verify(hash_ctx, &commitment, &pubkey, &sha, data, 31) == 0);
/* Check that commmitting fails when the inner pubkey is the point at
* infinity */
secp256k1_sha256_initialize(&sha);
secp256k1_ge_set_infinity(&pubkey);
CHECK(secp256k1_ec_commit(&commitment, &pubkey, &sha, data, 32) == 0);
CHECK(secp256k1_ec_commit(hash_ctx, &commitment, &pubkey, &sha, data, 32) == 0);
secp256k1_scalar_set_int(&seckey_s, 0);
CHECK(secp256k1_ec_commit_seckey(&seckey_s, &pubkey, &sha, data, 32) == 0);
CHECK(secp256k1_ec_commit_verify(&commitment, &pubkey, &sha, data, 32) == 0);
CHECK(secp256k1_ec_commit_seckey(hash_ctx, &seckey_s, &pubkey, &sha, data, 32) == 0);
CHECK(secp256k1_ec_commit_verify(hash_ctx, &commitment, &pubkey, &sha, data, 32) == 0);
}
static void test_ec_commit_api(void) {
const secp256k1_hash_ctx *hash_ctx = secp256k1_get_hash_context(CTX);
unsigned char seckey[32];
secp256k1_scalar seckey_s;
secp256k1_ge pubkey;
@@ -4442,17 +4444,17 @@ static void test_ec_commit_api(void) {
secp256k1_ge_set_gej(&pubkey, &pubkeyj);
secp256k1_sha256_initialize(&sha);
CHECK(secp256k1_ec_commit(&commitment, &pubkey, &sha, data, 1) == 1);
CHECK(secp256k1_ec_commit(hash_ctx, &commitment, &pubkey, &sha, data, 1) == 1);
/* The same pubkey can be both input and output of the function */
{
secp256k1_ge pubkey_tmp = pubkey;
secp256k1_sha256_initialize(&sha);
CHECK(secp256k1_ec_commit(&pubkey_tmp, &pubkey_tmp, &sha, data, 1) == 1);
CHECK(secp256k1_ec_commit(hash_ctx, &pubkey_tmp, &pubkey_tmp, &sha, data, 1) == 1);
secp256k1_ge_eq_var(&commitment, &pubkey_tmp);
}
secp256k1_sha256_initialize(&sha);
CHECK(secp256k1_ec_commit_verify(&commitment, &pubkey, &sha, data, 1) == 1);
CHECK(secp256k1_ec_commit_verify(hash_ctx, &commitment, &pubkey, &sha, data, 1) == 1);
}
static void run_ec_commit(void) {