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/*
* Copyright (C) 2010 Martin Willi
* Copyright (C) 2010 revosec AG
*
* 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 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* 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.
*/
#include <stdio.h>
#include <library.h>
int main(int argc, char *argv[])
{
const proposal_token_t *token;
aead_t *aead;
crypter_t *crypter;
char buffer[1024], assoc[8], iv[32];
size_t bs;
int i = 0, limit = 0;
library_init(NULL);
lib->plugins->load(lib->plugins, NULL, PLUGINS);
atexit(library_deinit);
printf("loaded: %s\n", PLUGINS);
memset(buffer, 0x12, sizeof(buffer));
memset(assoc, 0x34, sizeof(assoc));
memset(iv, 0x56, sizeof(iv));
if (argc < 2)
{
fprintf(stderr, "usage: %s <algorithm>!\n", argv[0]);
return 1;
}
if (argc > 2)
{
limit = atoi(argv[2]);
}
token = lib->proposal->get_token(lib->proposal, argv[1]);
if (!token)
{
fprintf(stderr, "algorithm '%s' unknown!\n", argv[1]);
return 1;
}
if (token->type != ENCRYPTION_ALGORITHM)
{
fprintf(stderr, "'%s' is not an encryption/aead algorithm!\n", argv[1]);
return 1;
}
if (encryption_algorithm_is_aead(token->algorithm))
{
aead = lib->crypto->create_aead(lib->crypto,
token->algorithm, token->keysize / 8);
if (!aead)
{
fprintf(stderr, "aead '%s' not supported!\n", argv[1]);
return 1;
}
while (TRUE)
{
if (!aead->encrypt(aead,
chunk_create(buffer, sizeof(buffer) - aead->get_icv_size(aead)),
chunk_from_thing(assoc),
chunk_create(iv, aead->get_iv_size(aead)), NULL))
{
fprintf(stderr, "aead encryption failed!\n");
return 1;
}
if (!aead->decrypt(aead, chunk_create(buffer, sizeof(buffer)),
chunk_from_thing(assoc),
chunk_create(iv, aead->get_iv_size(aead)), NULL))
{
fprintf(stderr, "aead integrity check failed!\n");
return 1;
}
if (limit && ++i == limit)
{
break;
}
}
}
else
{
crypter = lib->crypto->create_crypter(lib->crypto,
token->algorithm, token->keysize / 8);
if (!crypter)
{
fprintf(stderr, "crypter '%s' not supported!\n", argv[1]);
return 1;
}
bs = crypter->get_block_size(crypter);
while (i--)
{
if (!crypter->encrypt(crypter,
chunk_create(buffer, sizeof(buffer) / bs * bs),
chunk_create(iv, crypter->get_iv_size(crypter)), NULL))
{
continue;
}
if (!crypter->decrypt(crypter,
chunk_create(buffer, sizeof(buffer) / bs * bs),
chunk_create(iv, crypter->get_iv_size(crypter)), NULL))
{
continue;
}
if (limit && ++i == limit)
{
break;
}
}
}
return 0;
}
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