You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

55 lines
1.9 KiB

/**********************************************************************
* Copyright (c) 2014 Pieter Wuille *
* Distributed under the MIT software license, see the accompanying *
* file COPYING or http://www.opensource.org/licenses/mit-license.php.*
**********************************************************************/
#include "include/secp256k1.h"
#include "util.h"
#include "bench.h"
typedef struct {
secp256k1_context_t *ctx;
unsigned char msg[32];
unsigned char sig[64];
} bench_recover_t;
void bench_recover(void* arg) {
int i;
bench_recover_t *data = (bench_recover_t*)arg;
secp256k1_pubkey_t pubkey;
unsigned char pubkeyc[33];
for (i = 0; i < 20000; i++) {
int j;
int pubkeylen = 33;
secp256k1_ecdsa_signature_t sig;
CHECK(secp256k1_ecdsa_signature_parse_compact(data->ctx, &sig, data->sig, i % 2));
CHECK(secp256k1_ecdsa_recover(data->ctx, data->msg, &sig, &pubkey));
CHECK(secp256k1_ec_pubkey_serialize(data->ctx, pubkeyc, &pubkeylen, &pubkey, 1));
for (j = 0; j < 32; j++) {
data->sig[j + 32] = data->msg[j]; /* Move former message to S. */
data->msg[j] = data->sig[j]; /* Move former R to message. */
data->sig[j] = pubkeyc[j + 1]; /* Move recovered pubkey X coordinate to R (which must be a valid X coordinate). */
}
}
}
void bench_recover_setup(void* arg) {
int i;
bench_recover_t *data = (bench_recover_t*)arg;
for (i = 0; i < 32; i++) data->msg[i] = 1 + i;
for (i = 0; i < 64; i++) data->sig[i] = 65 + i;
}
int main(void) {
bench_recover_t data;
data.ctx = secp256k1_context_create(SECP256K1_CONTEXT_VERIFY);
run_benchmark("ecdsa_recover", bench_recover, bench_recover_setup, NULL, &data, 10, 20000);
secp256k1_context_destroy(data.ctx);
return 0;
}