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Merge pull request #79 

ae2679b Add bench_inv tool (Pieter Wuille)
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Pieter Wuille 2014-10-31 02:18:58 -07:00
parent 66002cfa87 ae2679b6e4
commit 81dc171604
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2 changed files with 46 additions and 1 deletions
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5
Makefile.am
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@ -48,10 +48,13 @@ libsecp256k1_la_LIBADD = libsecp256k1_common.la $(SECP_LIBS)
noinst_PROGRAMS =
if USE_BENCHMARK
noinst_PROGRAMS += bench
noinst_PROGRAMS += bench bench_inv
bench_SOURCES = src/bench.c
bench_LDADD = libsecp256k1.la $(SECP_LIBS)
bench_LDFLAGS = -static
bench_inv_SOURCES = src/bench_inv.c
bench_inv_LDADD = libsecp256k1_common.la $(SECP_LIBS)
bench_inv_LDFLAGS = -static
endif
if USE_TESTS

42
src/bench_inv.c Normal file
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@ -0,0 +1,42 @@
// 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 <stdio.h>
#include "util.h"
#include "num_impl.h"
#include "field_impl.h"
#include "group_impl.h"
#include "scalar_impl.h"
int main() {
static const unsigned char init[32] = {
0x02, 0x03, 0x05, 0x07, 0x0b, 0x0d, 0x11, 0x13,
0x17, 0x1d, 0x1f, 0x25, 0x29, 0x2b, 0x2f, 0x35,
0x3b, 0x3d, 0x43, 0x47, 0x49, 0x4f, 0x53, 0x59,
0x61, 0x65, 0x67, 0x6b, 0x6d, 0x71, 0x7f, 0x83
};
static const unsigned char fini[32] = {
0xba, 0x28, 0x58, 0xd8, 0xaa, 0x11, 0xd6, 0xf2,
0xfa, 0xce, 0x50, 0xb1, 0x67, 0x19, 0xb1, 0xa6,
0xe0, 0xaa, 0x84, 0x53, 0xf6, 0x80, 0xfc, 0x23,
0x88, 0x3c, 0xd6, 0x74, 0x9f, 0x27, 0x09, 0x03
};
secp256k1_ge_start();
secp256k1_scalar_t base, x;
secp256k1_scalar_init(&base);
secp256k1_scalar_init(&x);
secp256k1_scalar_set_b32(&base, init, NULL);
secp256k1_scalar_set_b32(&x, init, NULL);
for (int i=0; i<1000000; i++) {
secp256k1_scalar_inverse(&x, &x);
secp256k1_scalar_add(&x, &x, &base);
}
unsigned char res[32];
secp256k1_scalar_get_b32(res, &x);
CHECK(memcmp(res, fini, 32) == 0);
secp256k1_scalar_free(&base);
secp256k1_scalar_free(&x);
return 0;
}