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.
56 lines
1.9 KiB
56 lines
1.9 KiB
9 years ago
|
/**********************************************************************
|
||
|
|
* 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;
|
||
|
|
}
|