/* Return values: 0 = success, ERR_CIPHER_INIT_FAILURE (fatal), ERR_CIPHER_INIT_WEAK_KEY (non-fatal) */
int CipherInit (int cipher, unsigned char *key, unsigned __int8 *ks)
{
int retVal = ERR_SUCCESS;
switch (cipher)
{
case GOST:
gost_set_key(key, (gost_kds *)ks);
break;
default:
// Unknown/wrong cipher ID
return ERR_CIPHER_INIT_FAILURE;
}
return retVal;
}
int main(int argc, char **argv) {
uint8_t gamma[8];
uint8_t *in, *out;
struct timeval t1, t2;
gost_ctx ctx;
gost_init(&ctx, &gost_sbox);
gost_set_key(&ctx, &gost_key[0]);
RAND_bytes(gamma, sizeof(gamma));
in = (uint8_t*) malloc(TEST_SIZE);
assert(in != NULL);
out = (uint8_t*) malloc(TEST_SIZE);
assert(in != NULL);
printf("TEST_SIZE: %d bytes\n", TEST_SIZE);
gettimeofday(&t1, NULL);
RAND_bytes(in, TEST_SIZE);
gettimeofday(&t2, NULL);
printf("RAND_bytes: %.6lf seconds, %.6lf bytes/s\n", delta(&t1, &t2), TEST_SIZE/delta(&t1, &t2));
gettimeofday(&t1, NULL);
gost_ecb_encrypt(&ctx, &in[0], &out[0], TEST_SIZE/8);
gettimeofday(&t2, NULL);
printf("ECB mode: %.6lf seconds, %.6lf bytes/s\n", delta(&t1, &t2), TEST_SIZE/delta(&t1, &t2));
gettimeofday(&t1, NULL);
gost_cfb_encrypt(&ctx, &gamma[0], &in[0], &out[0], TEST_SIZE/8);
gettimeofday(&t2, NULL);
printf("CFB mode: %.6lf seconds, %.6lf bytes/s\n", delta(&t1, &t2), TEST_SIZE/delta(&t1, &t2));
gettimeofday(&t1, NULL);
gost_mac(&ctx, &in[0], TEST_SIZE, &out[0], 20);
gettimeofday(&t2, NULL);
printf("MAC mode: %.6lf seconds, %.6lf bytes/s\n", delta(&t1, &t2), TEST_SIZE/delta(&t1, &t2));
return 0;
}
void CipherGost89StaticSBOX::SetCipherKey (const byte *key)
{
gost_set_key (key, (gost_kds *) ScheduledKey.Ptr(), 0);
}
void CipherGost89::SetCipherKey (const byte *key)
{
gost_set_key (key, (gost_kds *) ScheduledKey.Ptr(), 1);
}