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/*
* Copyright (C) 2019 Red Hat, Inc.
*
* Author: Daiki Ueno
*
* 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 Lesser General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <gnutls/crypto.h>
#include <assert.h>
#include <stdint.h>
#include <string.h>
#include "utils.h"
static void tls_log_func(int level, const char *str)
{
fprintf(stderr, "<%d>| %s", level, str);
}
/* Test whether gnutls_aead_cipher_{en,de}crypt_vec works */
static void start(const char *name, int algo)
{
int ret;
gnutls_aead_cipher_hd_t ch;
uint8_t key16[64];
uint8_t iv16[32];
uint8_t auth[128];
uint8_t data[64+56+36];
gnutls_datum_t key, iv;
giovec_t iov[3];
giovec_t auth_iov[2];
uint8_t tag[64];
size_t tag_size = 0;
size_t i;
key.data = key16;
key.size = gnutls_cipher_get_key_size(algo);
assert(key.size <= sizeof(key16));
iv.data = iv16;
iv.size = gnutls_cipher_get_iv_size(algo);
assert(iv.size <= sizeof(iv16));
memset(iv.data, 0xff, iv.size);
memset(key.data, 0xfe, key.size);
memset(data, 0xfa, sizeof(data));
memset(auth, 0xaa, sizeof(auth));
iov[0].iov_base = data;
iov[0].iov_len = 64;
iov[1].iov_base = data + 64;
iov[1].iov_len = 56;
iov[2].iov_base = data + 64 + 56;
iov[2].iov_len = 36;
auth_iov[0].iov_base = auth;
auth_iov[0].iov_len = 64;
auth_iov[1].iov_base = auth + 64;
auth_iov[1].iov_len = 64;
success("trying %s\n", name);
ret =
gnutls_aead_cipher_init(&ch, algo, &key);
if (ret < 0)
fail("gnutls_cipher_init: %s\n", gnutls_strerror(ret));
for (i = 0; i < 2; i++) {
ret = gnutls_aead_cipher_encryptv2(ch,
iv.data, iv.size,
auth_iov, 2,
iov, i + 1,
tag, &tag_size);
if (ret < 0)
fail("could not encrypt data: %s\n", gnutls_strerror(ret));
ret = gnutls_aead_cipher_decryptv2(ch,
iv.data, iv.size,
auth_iov, 2,
iov, i + 1,
tag, tag_size);
if (ret < 0)
fail("could not decrypt data: %s\n", gnutls_strerror(ret));
}
gnutls_aead_cipher_deinit(ch);
}
void
doit(void)
{
int ret;
gnutls_global_set_log_function(tls_log_func);
if (debug)
gnutls_global_set_log_level(4711);
ret = global_init();
if (ret < 0) {
fail("Cannot initialize library\n"); /*errcode 1 */
}
start("aes-128-gcm", GNUTLS_CIPHER_AES_128_GCM);
start("aes-192-gcm", GNUTLS_CIPHER_AES_192_GCM);
start("aes-256-gcm", GNUTLS_CIPHER_AES_256_GCM);
start("aes-128-ccm", GNUTLS_CIPHER_AES_128_CCM);
if (!gnutls_fips140_mode_enabled())
start("chacha20-poly1305", GNUTLS_CIPHER_CHACHA20_POLY1305);
gnutls_global_deinit();
}
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