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/**
* \file
* \author Egor Tensin <Egor.Tensin@gmail.com>
* \date 2015
* \copyright This file is licensed under the terms of the MIT License.
* See LICENSE.txt for details.
*/
#include <aesni/all.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static void exit_with_usage()
{
puts("Usage: aes256cfb_encrypt_block.exe KEY0 IV0 [PLAIN0...] [-- KEY1 IV1 [PLAIN1...]...]");
exit(EXIT_FAILURE);
}
int main(int argc, char** argv)
{
for (--argc, ++argv; argc > -1; --argc, ++argv)
{
AesBlock128 plain, cipher, iv;
AesBlock256 key;
Aes256KeySchedule key_schedule;
if (argc < 2)
exit_with_usage();
if (parse_aes_block256(&key, *argv) != 0)
{
fprintf(stderr, "Invalid 256-bit AES block '%s'\n", *argv);
exit_with_usage();
}
if (parse_aes_block128(&iv, argv[1]) != 0)
{
fprintf(stderr, "Invalid 128-bit AES block '%s'\n", argv[1]);
exit_with_usage();
}
aes256_expand_key_schedule(&key, &key_schedule);
for (argc -= 2, argv += 2; argc > 0; --argc, ++argv)
{
if (strcmp("--", *argv) == 0)
break;
if (parse_aes_block128(&plain, *argv) != 0)
{
fprintf(stderr, "Invalid 128-bit AES block '%s'\n", *argv);
continue;
}
cipher = aes256cfb_encrypt_block(plain, &key_schedule, iv, &iv);
print_aes_block128(&cipher);
}
}
return 0;
}
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