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/* Test of the sha3_224_buffer() function.
Copyright (C) 2025-2026 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Collin Funk <collin.funk1@gmail.com>, 2025. */
#include <config.h>
/* Specification. */
#include "sha3.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
struct test_case {
char const *message;
char const *digest;
};
static const struct test_case test_cases[] = {
{ "", "\x6b\x4e\x03\x42\x36\x67\xdb\xb7\x3b\x6e\x15\x45\x4f\x0e\xb1\xab\xd4"
"\x59\x7f\x9a\x1b\x07\x8e\x3f\x5b\x5a\x6b\xc7" },
{ "abc", "\xe6\x42\x82\x4c\x3f\x8c\xf2\x4a\xd0\x92\x34\xee\x7d\x3c\x76\x6f"
"\xc9\xa3\xa5\x16\x8d\x0c\x94\xad\x73\xb4\x6f\xdf" },
{ "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
"\x8a\x24\x10\x8b\x15\x4a\xda\x21\xc9\xfd\x55\x74\x49\x44\x79\xba\x5c\x7e"
"\x7a\xb7\x6e\xf2\x64\xea\xd0\xfc\xce\x33" },
{ "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopj"
"klmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
"\x54\x3e\x68\x68\xe1\x66\x6c\x1a\x64\x36\x30\xdf\x77\x36\x7a\xe5\xa6\x2a"
"\x85\x07\x0a\x51\xc1\x4c\xbf\x66\x5c\xbc" },
};
static int
check (char const *message, size_t len, char const *expect)
{
char buf[SHA3_224_DIGEST_SIZE];
if (memcmp (sha3_224_buffer (message, len, buf),
expect, SHA3_224_DIGEST_SIZE) != 0)
{
printf ("expected:\n");
for (size_t i = 0; i < SHA3_224_DIGEST_SIZE; i++)
printf ("%02x ", expect[i] & 0xFFu);
printf ("\ncomputed:\n");
for (size_t i = 0; i < SHA3_224_DIGEST_SIZE; i++)
printf ("%02x ", buf[i] & 0xFFu);
printf ("\n");
return 1;
}
return 0;
}
int
main (void)
{
/* Check the test vectors. */
for (size_t i = 0; i < sizeof test_cases / sizeof *test_cases; ++i)
{
char const *message = test_cases[i].message;
char const *digest = test_cases[i].digest;
if (check (message, strlen (message), digest) != 0)
return 1;
}
/* Check that a large buffer works. */
char *large = malloc (1000000);
if (large != NULL)
{
memset (large, 'a', 1000000);
char const *expect = ("\xd6\x93\x35\xb9\x33\x25\x19\x2e\x51\x6a\x91\x2e"
"\x6d\x19\xa1\x5c\xb5\x1c\x6e\xd5\xc1\x52\x43\xe7"
"\xa7\xfd\x65\x3c");
if (check (large, 1000000, expect) != 0)
return 1;
free (large);
}
/* Check that sha3_free_ctx can be called multiple times without
crashing. */
{
struct sha3_ctx ctx;
if (sha3_224_init_ctx (&ctx))
{
sha3_free_ctx (&ctx);
sha3_free_ctx (&ctx);
}
}
return 0;
}
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