fx/test/core/hash.c

#include <fx/core/hash.h>
#include <stdio.h>
#include <string.h>

static void print_digest(
	const char *func_name, fx_hash_function func, const char *msg,
	size_t msg_len, size_t digest_len)
{
	unsigned char digest[128];

	fx_hash_ctx ctx;
	if (!FX_OK(fx_hash_ctx_init(&ctx, func))) {
		printf("fx_hash_ctx_init failed\n");
		return;
	}

	if (!FX_OK(fx_hash_ctx_update(&ctx, msg, msg_len))) {
		printf("fx_hash_ctx_update failed\n");
		return;
	}

	if (!FX_OK(fx_hash_ctx_finish(&ctx, digest, sizeof digest))) {
		printf("fx_hash_ctx_finish failed\n");
		return;
	}

	char digest_str[256];
	for (size_t i = 0; i < digest_len; i++) {
		snprintf(
			digest_str + (i * 2), sizeof digest_str - (i * 2),
			"%02x", digest[i]);
	}

	printf("%s(%s) = %s\n", func_name, msg, digest_str);
}

int main(void)
{

	const char *msg = "Hello, world!";
	size_t msg_len = strlen(msg);

	print_digest("MD4", FX_HASH_MD4, msg, msg_len, FX_DIGEST_LENGTH_MD4);
	print_digest("MD5", FX_HASH_MD5, msg, msg_len, FX_DIGEST_LENGTH_MD5);
	print_digest("SHA1", FX_HASH_SHA1, msg, msg_len, FX_DIGEST_LENGTH_SHA1);
	print_digest(
		"SHA224", FX_HASH_SHA2_224, msg, msg_len, FX_DIGEST_LENGTH_SHA2_224);
	print_digest(
		"SHA256", FX_HASH_SHA2_256, msg, msg_len, FX_DIGEST_LENGTH_SHA2_256);
	print_digest(
		"SHA384", FX_HASH_SHA2_384, msg, msg_len, FX_DIGEST_LENGTH_SHA2_384);
	print_digest(
		"SHA512", FX_HASH_SHA2_512, msg, msg_len, FX_DIGEST_LENGTH_SHA2_512);
	print_digest(
		"SHA3-224", FX_HASH_SHA3_224, msg, msg_len,
		FX_DIGEST_LENGTH_SHA3_224);
	print_digest(
		"SHA3-256", FX_HASH_SHA3_256, msg, msg_len,
		FX_DIGEST_LENGTH_SHA3_256);
	print_digest(
		"SHA3-384", FX_HASH_SHA3_384, msg, msg_len,
		FX_DIGEST_LENGTH_SHA3_384);
	print_digest(
		"SHA3-512", FX_HASH_SHA3_512, msg, msg_len,
		FX_DIGEST_LENGTH_SHA3_512);
	print_digest(
		"SHAKE128", FX_HASH_SHAKE128, msg, msg_len,
		FX_DIGEST_LENGTH_SHAKE128);
	print_digest(
		"SHAKE256", FX_HASH_SHAKE256, msg, msg_len,
		FX_DIGEST_LENGTH_SHAKE256);

	return 0;
}