static int bench_mac_init (struct bench_obj *obj) { struct bench_mac_mode *mode = obj->priv; gcry_mac_hd_t hd; int err; unsigned int keylen; void *key; obj->min_bufsize = BUF_START_SIZE; obj->max_bufsize = BUF_END_SIZE; obj->step_size = BUF_STEP_SIZE; obj->num_measure_repetitions = num_measurement_repetitions; keylen = gcry_mac_get_algo_keylen (mode->algo); if (keylen == 0) keylen = 32; key = malloc (keylen); if (!key) { fprintf (stderr, PGM ": couldn't allocate %d bytes\n", keylen); exit (1); } memset(key, 42, keylen); err = gcry_mac_open (&hd, mode->algo, 0, NULL); if (err) { fprintf (stderr, PGM ": error opening mac `%s'\n", gcry_mac_algo_name (mode->algo)); free (key); exit (1); } err = gcry_mac_setkey (hd, key, keylen); free (key); if (err) { fprintf (stderr, PGM ": error setting key for mac `%s'\n", gcry_mac_algo_name (mode->algo)); exit (1); } obj->priv = hd; return 0; }
static void mac_bench_one (int algo, struct bench_mac_mode *pmode) { struct bench_mac_mode mode = *pmode; struct bench_obj obj = { 0 }; double result; mode.algo = algo; if (mode.name[0] == '\0') bench_print_algo (-18, gcry_mac_algo_name (algo)); else bench_print_algo (18, mode.name); obj.ops = mode.ops; obj.priv = &mode; result = do_slope_benchmark (&obj); bench_print_result (result); }