diff options
| -rw-r--r-- | src/util/bench_age_restriction.c | 208 | ||||
| -rwxr-xr-x | src/util/do_bench_age_restriction | 8 |
2 files changed, 216 insertions, 0 deletions
diff --git a/src/util/bench_age_restriction.c b/src/util/bench_age_restriction.c new file mode 100644 index 000000000..abda9416a --- /dev/null +++ b/src/util/bench_age_restriction.c @@ -0,0 +1,208 @@ +/** + * @file util/bench_age_restriction.c + * @brief Measure Commit, Attest, Verify, Derive and Compare + * @author Özgür Kesim + * + * compile in exchange/src/util with + * + * gcc benc_age_restriction.c \ + * -lgnunetutil -lgnunetjson -lsodium -ljansson \ + * -L/usr/lib/x86_64-linux-gnu -lmicrohttpd -ltalerutil \ + * -I../include \ + * -o bench_age_restriction + * + */ +#include "platform.h" +#include <math.h> +#include <gnunet/gnunet_util_lib.h> +#include <taler/taler_util.h> +#include <taler/taler_crypto_lib.h> + +static struct TALER_AgeMask + age_mask = { .bits = 1 + | 1 << 8 | 1 << 10 | 1 << 12 + | 1 << 14 | 1 << 16 | 1 << 18 | 1 << 21 }; + +extern uint8_t +get_age_group ( + const struct TALER_AgeMask *mask, + uint8_t age); + +/** + * Encodes the age mask into a string, like "8:10:12:14:16:18:21" + */ +char * +age_mask_to_string ( + const struct TALER_AgeMask *m) +{ + uint32_t bits = m->bits; + unsigned int n = 0; + char *buf = GNUNET_malloc (32 * 3); // max characters possible + char *pos = buf; + + if (NULL == buf) + { + return buf; + } + + while (bits != 0) + { + bits >>= 1; + n++; + if (0 == (bits & 1)) + { + continue; + } + + if (n > 9) + { + *(pos++) = '0' + n / 10; + } + *(pos++) = '0' + n % 10; + + if (0 != (bits >> 1)) + { + *(pos++) = ':'; + } + } + return buf; +} + + +#define ITER 2000 + +double +average (long *times, size_t size) +{ + double mean = 0.0; + for (int i = 0; i < size; i++) + { + mean += times[i]; + } + return mean / size; +} + + +double +stdev (long *times, size_t size) +{ + double mean = average (times, size); + double V = 0.0; + for (int i = 0; i < size; i++) + { + double d = times[i] - mean; + d *= d; + V += d; + } + return sqrt (V / size); +} + + +#define pr(n,t, i) printf ("%10s (%dx):\t%.2f ± %.2fµs\n", (n), i, average ( \ + &t[0], ITER) / 1000, stdev (&t[0], ITER) / 1000); \ + i = 0; + +#define starttime clock_gettime (CLOCK_MONOTONIC, &tstart) +#define stoptime clock_gettime (CLOCK_MONOTONIC, &tend); \ + times[i] = ((long) tend.tv_sec * 1000 * 1000 * 1000 + tend.tv_nsec) \ + - ((long) tstart.tv_sec * 1000 * 1000 * 1000 + tstart.tv_nsec); + + +int +main (int argc, + const char *const argv[]) +{ + struct timespec tstart = {0,0}, tend = {0,0}; + enum GNUNET_GenericReturnValue ret; + struct TALER_AgeCommitmentProof acp = {0}; + uint8_t age = 21; + uint8_t age_group = get_age_group (&age_mask, age); + struct GNUNET_HashCode seed; + long times[ITER] = {0}; + int i = 0; + + // commit + for (; i < ITER; i++) + { + starttime; + GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK, + &seed, + sizeof(seed)); + + ret = TALER_age_restriction_commit (&age_mask, + age, + &seed, + &acp); + stoptime; + + } + pr ("commit", times, i); + + // attest + for (; i < ITER; i++) + { + GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK, + &seed, + sizeof(seed)); + + ret = TALER_age_restriction_commit (&age_mask, + age, + &seed, + &acp); + + starttime; + uint8_t min_group = get_age_group (&age_mask, 13); + struct TALER_AgeAttestation at = {0}; + ret = TALER_age_commitment_attest (&acp, + 13, + &at); + stoptime; + } + pr ("attest", times, i); + + // verify + for (; i < ITER; i++) + { + GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK, + &seed, + sizeof(seed)); + + ret = TALER_age_restriction_commit (&age_mask, + age, + &seed, + &acp); + + uint8_t min_group = get_age_group (&age_mask, 13); + struct TALER_AgeAttestation at = {0}; + + ret = TALER_age_commitment_attest (&acp, + 13, + &at); + starttime; + ret = TALER_age_commitment_verify (&acp.commitment, + 13, + &at); + stoptime; + } + pr ("verify", times, i); + + // derive + for (; i < ITER; i++) + { + struct TALER_AgeCommitmentProof acp2 = {0}; + GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK, + &seed, + sizeof(seed)); + starttime; + TALER_age_commitment_derive (&acp, + &seed, + &acp2); + stoptime; + } + pr ("derive", times, i); + + return 0; +} + + +/* end of tv_age_restriction.c */ diff --git a/src/util/do_bench_age_restriction b/src/util/do_bench_age_restriction new file mode 100755 index 000000000..a65713439 --- /dev/null +++ b/src/util/do_bench_age_restriction @@ -0,0 +1,8 @@ +#!/bin/sh + +gcc bench_age_restriction.c \ + -lgnunetutil -lgnunetjson -lsodium -ljansson \ + -L/usr/lib/x86_64-linux-gnu -lmicrohttpd -ltalerutil -lm \ + -I../include \ + -o bench_age_restriction && ./bench_age_restriction + |