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Merge commits '4494a369 3aef6ab8 0fa84f86 249c81ea 7966aee3 fb758fe8 3fc1de5c 0aacf643 9e6d1b0e 332af315 afd7eb4a c9ebca95 cc557575 0f7657d5 907a6721 b40e2d30 c545fdc3 2bd5f3e6 0e00fc7d c734c642 26392da2 ' into temp-merge-1386

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This commit is contained in:
Jonas Nick
2023-07-27 18:57:30 +00:00
parent 50e20fa7d4 26392da2fb
commit 80187089ff
36 changed files with 333 additions and 337 deletions
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1
src/modules/ellswift/Makefile.am.include
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@@ -2,3 +2,4 @@ include_HEADERS += include/secp256k1_ellswift.h
noinst_HEADERS += src/modules/ellswift/bench_impl.h
noinst_HEADERS += src/modules/ellswift/main_impl.h
noinst_HEADERS += src/modules/ellswift/tests_impl.h
noinst_HEADERS += src/modules/ellswift/tests_exhaustive_impl.h

39
src/modules/ellswift/tests_exhaustive_impl.h Normal file
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@@ -0,0 +1,39 @@
/***********************************************************************
* Distributed under the MIT software license, see the accompanying *
* file COPYING or https://www.opensource.org/licenses/mit-license.php.*
***********************************************************************/
#ifndef SECP256K1_MODULE_ELLSWIFT_TESTS_EXHAUSTIVE_H
#define SECP256K1_MODULE_ELLSWIFT_TESTS_EXHAUSTIVE_H
#include "../../../include/secp256k1_ellswift.h"
#include "main_impl.h"
static void test_exhaustive_ellswift(const secp256k1_context *ctx, const secp256k1_ge *group) {
int i;
/* Note that SwiftEC/ElligatorSwift are inherently curve operations, not
* group operations, and this test only checks the curve points which are in
* a tiny subgroup. In that sense it can't be really seen as exhaustive as
* it doesn't (and for computational reasons obviously cannot) test the
* entire domain ellswift operates under. */
for (i = 1; i < EXHAUSTIVE_TEST_ORDER; i++) {
secp256k1_scalar scalar_i;
unsigned char sec32[32];
unsigned char ell64[64];
secp256k1_pubkey pub_decoded;
secp256k1_ge ge_decoded;
/* Construct ellswift pubkey from exhaustive loop scalar i. */
secp256k1_scalar_set_int(&scalar_i, i);
secp256k1_scalar_get_b32(sec32, &scalar_i);
CHECK(secp256k1_ellswift_create(ctx, ell64, sec32, NULL));
/* Decode ellswift pubkey and check that it matches the precomputed group element. */
secp256k1_ellswift_decode(ctx, &pub_decoded, ell64);
secp256k1_pubkey_load(ctx, &ge_decoded, &pub_decoded);
ge_equals_ge(&ge_decoded, &group[i]);
}
}
#endif

4
src/modules/ellswift/tests_impl.h
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@@ -322,7 +322,9 @@ void run_ellswift_tests(void) {
secp256k1_testrand256_test(auxrnd32a);
secp256k1_testrand256_test(auxrnd32b);
random_scalar_order_test(&seca);
random_scalar_order_test(&secb);
/* Draw secb uniformly at random to make sure that the secret keys
* differ */
random_scalar_order(&secb);
secp256k1_scalar_get_b32(sec32a, &seca);
secp256k1_scalar_get_b32(sec32b, &secb);