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/*
* Copyright (c) 2009, 2010 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <config.h>
#include <ctype.h>
#include "aes128.h"
#include "util.h"
static void
hex_to_uint8(const char *input, uint8_t *output, size_t n)
{
size_t i;
if (strlen(input) != n * 2) {
goto error;
}
for (i = 0; i < n; i++) {
bool ok;
output[i] = hexits_value(&input[i * 2], 2, &ok);
if (!ok) {
goto error;
}
}
return;
error:
ovs_fatal(0, "\"%s\" is not exactly %zu hex digits", input, n * 2);
}
int
main(int argc, char *argv[])
{
struct aes128 aes;
uint8_t plaintext[16];
uint8_t ciphertext[16];
uint8_t key[16];
size_t i;
if (argc != 3) {
ovs_fatal(0, "usage: %s KEY PLAINTEXT, where KEY and PLAINTEXT each "
"consist of 32 hex digits", argv[0]);
}
hex_to_uint8(argv[1], key, 16);
hex_to_uint8(argv[2], plaintext, 16);
aes128_schedule(&aes, key);
aes128_encrypt(&aes, plaintext, ciphertext);
for (i = 0; i < 16; i++) {
printf("%02x", ciphertext[i]);
}
putchar('\n');
return 0;
}
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