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/*
* Copyright (C) 2022 Red Hat, Inc.
*
* Author: Zoltan Fridrich
*
* This file is part of GnuTLS.
*
* GnuTLS 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.
*
* GnuTLS 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 GnuTLS. If not, see <https://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <gnutls/crypto.h>
#include "utils.h"
static void test_xts_check(gnutls_cipher_algorithm_t alg)
{
int ret;
gnutls_cipher_hd_t ctx;
gnutls_datum_t key, iv;
iv.size = gnutls_cipher_get_iv_size(alg);
iv.data = gnutls_malloc(iv.size);
if (iv.data == NULL)
fail("Error: %s\n", gnutls_strerror(GNUTLS_E_MEMORY_ERROR));
gnutls_memset(iv.data, 0xf0, iv.size);
key.size = gnutls_cipher_get_key_size(alg);
key.data = gnutls_malloc(key.size);
if (key.data == NULL) {
gnutls_free(iv.data);
fail("Error: %s\n", gnutls_strerror(GNUTLS_E_MEMORY_ERROR));
}
gnutls_memset(key.data, 0xf0, key.size);
ret = gnutls_cipher_init(&ctx, alg, &key, &iv);
if (ret == GNUTLS_E_SUCCESS) {
gnutls_cipher_deinit(ctx);
gnutls_free(iv.data);
gnutls_free(key.data);
fail("cipher initialization should fail for key1 == key2\n");
}
key.data[0] = 0xff;
ret = gnutls_cipher_init(&ctx, alg, &key, &iv);
gnutls_free(iv.data);
gnutls_free(key.data);
if (ret == GNUTLS_E_SUCCESS)
gnutls_cipher_deinit(ctx);
else
fail("cipher initialization should succeed with key1 != key2"
"\n%s\n",
gnutls_strerror(ret));
}
void doit(void)
{
if (!gnutls_fips140_mode_enabled())
exit(77);
test_xts_check(GNUTLS_CIPHER_AES_128_XTS);
test_xts_check(GNUTLS_CIPHER_AES_256_XTS);
}
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