]> Git Repo - secp256k1.git/blob - src/bench_ecdh.c
Implement endomorphism optimization for secp256k1_ecmult_const
[secp256k1.git] / 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_t *ctx;
16     secp256k1_pubkey_t 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     data->ctx = secp256k1_context_create(0);
32     for (i = 0; i < 32; i++) data->scalar[i] = i + 1;
33     CHECK(secp256k1_ec_pubkey_parse(data->ctx, &data->point, point, sizeof(point)) == 1);
34 }
35
36 static void bench_ecdh(void* arg) {
37     int i;
38     unsigned char res[32];
39     bench_ecdh_t *data = (bench_ecdh_t*)arg;
40
41     for (i = 0; i < 20000; i++) {
42         CHECK(secp256k1_ecdh(data->ctx, res, &data->point, data->scalar) == 1);
43     }
44 }
45
46 int main(void) {
47     bench_ecdh_t data;
48
49     run_benchmark("ecdh", bench_ecdh, bench_ecdh_setup, NULL, &data, 10, 20000);
50     return 0;
51 }
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