void
crypto_rc4(CryptoRc4 rc4, uint32 len, uint8 * in_data, uint8 * out_data)
{
if (out_data != in_data)
memcpy(out_data, in_data, len);
int x = gnutls_cipher_encrypt (rc4->handle, out_data, len);
ASSERT(!x);
}
static void
cipher_bench (int algo, int size)
{
int ret;
gnutls_cipher_hd_t ctx;
void *_key, *_iv;
gnutls_datum_t key, iv;
struct timespec start, stop;
double secs;
double data_size = 0;
double dspeed, ddata;
int blocksize = gnutls_cipher_get_block_size (algo);
int keysize = gnutls_cipher_get_key_size (algo);
char metric[16];
_key = malloc (keysize);
if (_key == NULL)
return;
memset (_key, 0xf0, keysize);
_iv = malloc (blocksize);
if (_iv == NULL)
return;
memset (_iv, 0xf0, blocksize);
iv.data = _iv;
iv.size = blocksize;
key.data = _key;
key.size = keysize;
printf ("Checking %s (%dkb payload)... ", gnutls_cipher_get_name (algo),
size);
fflush (stdout);
must_finish = 0;
alarm (5);
gettime (&start);
ret = gnutls_cipher_init (&ctx, algo, &key, &iv);
if (ret < 0)
{
fprintf (stderr, "error: %s\n", gnutls_strerror (ret));
goto leave;
}
do
{
gnutls_cipher_encrypt (ctx, data, size * 1024);
data_size += size * 1024;
}
while (must_finish == 0);
gnutls_cipher_deinit (ctx);
gettime (&stop);
secs = (stop.tv_sec * 1000 + stop.tv_nsec / (1000 * 1000) -
(start.tv_sec * 1000 + start.tv_nsec / (1000 * 1000)));
secs /= 1000;
value2human (data_size, secs, &ddata, &dspeed, metric);
printf ("Encrypted %.2f %s in %.2f secs: ", ddata, metric, secs);
printf ("%.2f %s/sec\n", dspeed, metric);
leave:
free (_key);
free (_iv);
}
