github.com/SmartMeshFoundation/Spectrum@v0.0.0-20220621030607-452a266fee1e/crypto/secp256k1/libsecp256k1/src/bench_ecdh.c (about)

     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  }