diff options
Diffstat (limited to 'src/bench_recover.c')
-rw-r--r-- | src/bench_recover.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/bench_recover.c b/src/bench_recover.c new file mode 100644 index 0000000000..b1e0f33efa --- /dev/null +++ b/src/bench_recover.c @@ -0,0 +1,46 @@ +/********************************************************************** + * 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 { + unsigned char msg[32]; + unsigned char sig[64]; +} bench_recover_t; + +void bench_recover(void* arg) { + bench_recover_t *data = (bench_recover_t*)arg; + + unsigned char pubkey[33]; + for (int i=0; i<20000; i++) { + int pubkeylen = 33; + CHECK(secp256k1_ecdsa_recover_compact(data->msg, data->sig, pubkey, &pubkeylen, 1, i % 2)); + for (int 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] = pubkey[j + 1]; /* Move recovered pubkey X coordinate to R (which must be a valid X coordinate). */ + } + } +} + +void bench_recover_setup(void* arg) { + bench_recover_t *data = (bench_recover_t*)arg; + + for (int i = 0; i < 32; i++) data->msg[i] = 1 + i; + for (int i = 0; i < 64; i++) data->sig[i] = 65 + i; +} + +int main(void) { + secp256k1_start(SECP256K1_START_VERIFY); + + bench_recover_t data; + run_benchmark(bench_recover, bench_recover_setup, NULL, &data, 10, 20000); + + secp256k1_stop(); + return 0; +} |