Function main

common/test/run-derive_basepoints.c:143–266

}

int main(int argc, char *argv[])
{
	const tal_t *ctx = tal(NULL, char);
	struct info *baseline, *info;

	common_setup(argv[0]);
	baseline = new_info(ctx);
	assert(derive_basepoints(&baseline->seed, &baseline->funding_pubkey,
				 &baseline->basepoints,
				 &baseline->secrets,
				 &baseline->shaseed));

	/* Same seed, same result. */
	info = new_info(ctx);
	assert(derive_basepoints(&info->seed, &info->funding_pubkey,
				 &info->basepoints,
				 &info->secrets,
				 &info->shaseed));
	assert(pubkey_eq(&baseline->funding_pubkey, &info->funding_pubkey));
	assert(basepoints_eq(&baseline->basepoints, &info->basepoints));
	assert(secrets_eq(&baseline->secrets, &info->secrets));
	assert(sha256_eq(&baseline->shaseed, &info->shaseed));

	/* Different seed, different result. */
	for (size_t i = 0; i < sizeof(info->seed); i++) {
		for (size_t b = 0; b < CHAR_BIT; b++) {
			info = new_info(ctx);
			info->seed.data[i] ^= (1 << b);

			assert(derive_basepoints(&info->seed,
						 &info->funding_pubkey,
						 &info->basepoints,
						 &info->secrets,
						 &info->shaseed));
			assert(!pubkey_eq(&baseline->funding_pubkey,
					  &info->funding_pubkey));
			assert(!basepoints_eq(&baseline->basepoints,
					      &info->basepoints));
			assert(!secrets_eq(&baseline->secrets, &info->secrets));
			assert(!sha256_eq(&baseline->shaseed, &info->shaseed));
		}
	}

	/* Any field can be NULL (except seed). */
	info = new_info(ctx);
	assert(derive_basepoints(&info->seed, NULL,
				 &info->basepoints,
				 &info->secrets,
				 &info->shaseed));
	assert(basepoints_eq(&baseline->basepoints, &info->basepoints));
	assert(secrets_eq(&baseline->secrets, &info->secrets));
	assert(sha256_eq(&baseline->shaseed, &info->shaseed));

	info = new_info(ctx);
	assert(derive_basepoints(&info->seed, &info->funding_pubkey,
				 NULL,
				 &info->secrets,
				 &info->shaseed));