src/bench_ecdh.c

   1 /**********************************************************************
   2  * Copyright (c) 2015 Pieter Wuille, Andrew Poelstra                  *
   3  * Distributed under the MIT software license, see the accompanying   *
   4  * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
   5  **********************************************************************/
   6
   7 #include <string.h>
   8
   9 #include "include/secp256k1.h"
  10 #include "include/secp256k1_ecdh.h"
  11 #include "util.h"
  12 #include "bench.h"
  13
  14 typedef struct {
  15     secp256k1_context *ctx;
  16     secp256k1_pubkey point;
  17     unsigned char scalar[32];
  18 } bench_ecdh_t;
  19
  20 static void bench_ecdh_setup(void* arg) {
  21     int i;
  22     bench_ecdh_t *data = (bench_ecdh_t*)arg;
  23     const unsigned char point[] = {
  24         0x03,
  25         0x54, 0x94, 0xc1, 0x5d, 0x32, 0x09, 0x97, 0x06,
  26         0xc2, 0x39, 0x5f, 0x94, 0x34, 0x87, 0x45, 0xfd,
  27         0x75, 0x7c, 0xe3, 0x0e, 0x4e, 0x8c, 0x90, 0xfb,
  28         0xa2, 0xba, 0xd1, 0x84, 0xf8, 0x83, 0xc6, 0x9f
  29     };
  30
  31     /* create a context with no capabilities */
  32     data->ctx = secp256k1_context_create(SECP256K1_FLAGS_TYPE_CONTEXT);
  33     for (i = 0; i < 32; i++) {
  34         data->scalar[i] = i + 1;
  35     }
  36     CHECK(secp256k1_ec_pubkey_parse(data->ctx, &data->point, point, sizeof(point)) == 1);
  37 }
  38
  39 static void bench_ecdh(void* arg) {
  40     int i;
  41     unsigned char res[32];
  42     bench_ecdh_t *data = (bench_ecdh_t*)arg;
  43
  44     for (i = 0; i < 20000; i++) {
  45         CHECK(secp256k1_ecdh(data->ctx, res, &data->point, data->scalar) == 1);
  46     }
  47 }
  48
  49 int main(void) {
  50     bench_ecdh_t data;
  51
  52     run_benchmark("ecdh", bench_ecdh, bench_ecdh_setup, NULL, &data, 10, 20000);
  53     return 0;
  54 }