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#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>
#include "test_util.h"
#include "secu_defs.h"
#include <nettle/nettle-meta.h>
#include <nettle/aes.h>
#include <nettle/ctr.h>
static
void test_uncipher_ctr(const struct nettle_cipher *cipher, const uint8_t *key,
unsigned key_length, const uint8_t *cipheredtext,
unsigned length, const uint8_t *cleartext, const uint8_t *ictr)
{
void *ctx = malloc(cipher->context_size);
uint8_t *data = malloc(length);
uint8_t *ctr = malloc(cipher->block_size);
cipher->set_encrypt_key(ctx, key_length, key);
memcpy(ctr, ictr, cipher->block_size);
ctr_crypt(ctx, cipher->encrypt,
cipher->block_size, ctr,
length, data, cipheredtext);
if (compare_buffer(data, length, cleartext, length) != 0)
{
fail("Fail: test_uncipher_ctr\n");
}
free(ctx);
free(data);
free(ctr);
}
void doit (void)
{
/* From NIST spec 800-38a on AES modes,
*
* http://csrc.nist.gov/CryptoToolkit/modes/800-38_Series_Publications/SP800-38A.pdf
*
* F.5 CTR Example Vectors
*/
/* F.5.1 CTR-AES128.Encrypt */
test_uncipher_ctr(&nettle_aes128,
HL("2b7e151628aed2a6abf7158809cf4f3c"),
HL("6bc1bee22e409f96e93d7e117393172a"
"ae2d8a571e03ac9c9eb76fac45af8e51"
"30c81c46a35ce411e5fbc1191a0a52ef"
"f69f2445df4f9b17ad2b417be66c3710"),
H("874d6191b620e3261bef6864990db6ce"
"9806f66b7970fdff8617187bb9fffdff"
"5ae4df3edbd5d35e5b4f09020db03eab"
"1e031dda2fbe03d1792170a0f3009cee"),
H("f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff"));
}