From 7e68ec80d99ca25ce8da0b8cb5866be537fa3b9f Mon Sep 17 00:00:00 2001 From: Jonas Nick Date: Tue, 31 Jan 2023 16:32:32 +0000 Subject: [PATCH] transcript: add tests --- src/modules/bulletproofs/tests_impl.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/src/modules/bulletproofs/tests_impl.h b/src/modules/bulletproofs/tests_impl.h index 8745090d3..4f11479dc 100644 --- a/src/modules/bulletproofs/tests_impl.h +++ b/src/modules/bulletproofs/tests_impl.h @@ -128,12 +128,36 @@ static void test_bulletproofs_pp_tagged_hash(void) { secp256k1_sha256 sha_cached; unsigned char output[32]; unsigned char output_cached[32]; + secp256k1_scalar s; secp256k1_sha256_initialize_tagged(&sha, tag_data, sizeof(tag_data)); secp256k1_bulletproofs_pp_sha256_tagged_commitment_init(&sha_cached); secp256k1_sha256_finalize(&sha, output); secp256k1_sha256_finalize(&sha_cached, output_cached); CHECK(secp256k1_memcmp_var(output, output_cached, 32) == 0); + + { + unsigned char expected[32] = { 0x21, 0x2F, 0xB6, 0x4F, 0x9D, 0x8C, 0x3B, 0xC5, + 0xF6, 0x91, 0x15, 0xEE, 0x74, 0xF5, 0x12, 0x67, + 0x8A, 0x41, 0xC6, 0x85, 0x1A, 0x79, 0x14, 0xFC, + 0x48, 0x15, 0xC7, 0x2D, 0xF8, 0x63, 0x8F, 0x1B }; + secp256k1_bulletproofs_pp_sha256_tagged_commitment_init(&sha); + secp256k1_bulletproofs_challenge_scalar(&s, &sha, 0); + secp256k1_scalar_get_b32(output, &s); + CHECK(memcmp(output, expected, sizeof(output)) == 0); + } + + { + unsigned char tmp[3] = {0, 1, 2}; + unsigned char expected[32] = { 0x8D, 0xAA, 0xB7, 0x7E, 0x3C, 0x6A, 0x9E, 0xEC, + 0x72, 0x7E, 0x3E, 0xB7, 0x10, 0x03, 0xF0, 0xE9, + 0x69, 0x4D, 0xAA, 0x96, 0xCE, 0x98, 0xBB, 0x39, + 0x1C, 0x2F, 0x7C, 0x2E, 0x1C, 0x17, 0x78, 0x6D }; + secp256k1_sha256_write(&sha, tmp, sizeof(tmp)); + secp256k1_bulletproofs_challenge_scalar(&s, &sha, 0); + secp256k1_scalar_get_b32(output, &s); + CHECK(memcmp(output, expected, sizeof(output)) == 0); + } } void test_log_exp(void) {