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Differential D8037 Diff 24961 src/secp256k1/src/modules/ecdh/tests_impl.h

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src/secp256k1/src/modules/ecdh/tests_impl.h

Show First 20 Lines • Show All 74 Lines • ▼ Show 20 Lines for (i = 0; i < 100; ++i) {
CHECK(secp256k1_ec_pubkey_create(ctx, &point[0], s_one) == 1); CHECK(secp256k1_ec_pubkey_create(ctx, &point[0], s_one) == 1);
CHECK(secp256k1_ec_pubkey_create(ctx, &point[1], s_b32) == 1); CHECK(secp256k1_ec_pubkey_create(ctx, &point[1], s_b32) == 1);
/* compute using ECDH function with custom hash function */ /* compute using ECDH function with custom hash function */
CHECK(secp256k1_ecdh(ctx, output_ecdh, &point[0], s_b32, ecdh_hash_function_custom, NULL) == 1); CHECK(secp256k1_ecdh(ctx, output_ecdh, &point[0], s_b32, ecdh_hash_function_custom, NULL) == 1);
/* compute "explicitly" */ /* compute "explicitly" */
CHECK(secp256k1_ec_pubkey_serialize(ctx, point_ser, &point_ser_len, &point[1], SECP256K1_EC_UNCOMPRESSED) == 1); CHECK(secp256k1_ec_pubkey_serialize(ctx, point_ser, &point_ser_len, &point[1], SECP256K1_EC_UNCOMPRESSED) == 1);
/* compare */ /* compare */
CHECK(memcmp(output_ecdh, point_ser, 65) == 0); CHECK(secp256k1_memcmp_var(output_ecdh, point_ser, 65) == 0);
/* compute using ECDH function with default hash function */ /* compute using ECDH function with default hash function */
CHECK(secp256k1_ecdh(ctx, output_ecdh, &point[0], s_b32, NULL, NULL) == 1); CHECK(secp256k1_ecdh(ctx, output_ecdh, &point[0], s_b32, NULL, NULL) == 1);
/* compute "explicitly" */ /* compute "explicitly" */
CHECK(secp256k1_ec_pubkey_serialize(ctx, point_ser, &point_ser_len, &point[1], SECP256K1_EC_COMPRESSED) == 1); CHECK(secp256k1_ec_pubkey_serialize(ctx, point_ser, &point_ser_len, &point[1], SECP256K1_EC_COMPRESSED) == 1);
secp256k1_sha256_initialize(&sha); secp256k1_sha256_initialize(&sha);
secp256k1_sha256_write(&sha, point_ser, point_ser_len); secp256k1_sha256_write(&sha, point_ser, point_ser_len);
secp256k1_sha256_finalize(&sha, output_ser); secp256k1_sha256_finalize(&sha, output_ser);
/* compare */ /* compare */
CHECK(memcmp(output_ecdh, output_ser, 32) == 0); CHECK(secp256k1_memcmp_var(output_ecdh, output_ser, 32) == 0);
} }
} }
void test_bad_scalar(void) { void test_bad_scalar(void) {
unsigned char s_zero[32] = { 0 }; unsigned char s_zero[32] = { 0 };
unsigned char s_overflow[32] = { unsigned char s_overflow[32] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe,
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