a6e86bc3dc
These test vectors include the k value, so we can get a deterministic test. Change-Id: Ie3cb61a99203cd55b01f4835be7c32043309748d Reviewed-on: https://boringssl-review.googlesource.com/10701 Reviewed-by: Adam Langley <agl@google.com> Commit-Queue: Adam Langley <agl@google.com> CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
120 lines
3.6 KiB
C++
120 lines
3.6 KiB
C++
/* Copyright (c) 2016, Google Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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#include <stdio.h>
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#include <vector>
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#include <openssl/bn.h>
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#include <openssl/crypto.h>
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#include <openssl/ec.h>
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#include <openssl/ec_key.h>
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#include <openssl/ecdsa.h>
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#include "../test/file_test.h"
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#include "../test/scoped_types.h"
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static ScopedEC_GROUP GetCurve(FileTest *t, const char *key) {
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std::string curve_name;
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if (!t->GetAttribute(&curve_name, key)) {
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return nullptr;
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}
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if (curve_name == "P-224") {
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return ScopedEC_GROUP(EC_GROUP_new_by_curve_name(NID_secp224r1));
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}
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if (curve_name == "P-256") {
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return ScopedEC_GROUP(EC_GROUP_new_by_curve_name(NID_X9_62_prime256v1));
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}
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if (curve_name == "P-384") {
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return ScopedEC_GROUP(EC_GROUP_new_by_curve_name(NID_secp384r1));
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}
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if (curve_name == "P-521") {
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return ScopedEC_GROUP(EC_GROUP_new_by_curve_name(NID_secp521r1));
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}
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t->PrintLine("Unknown curve '%s'", curve_name.c_str());
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return nullptr;
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}
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static ScopedBIGNUM GetBIGNUM(FileTest *t, const char *key) {
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std::vector<uint8_t> bytes;
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if (!t->GetBytes(&bytes, key)) {
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return nullptr;
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}
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return ScopedBIGNUM(BN_bin2bn(bytes.data(), bytes.size(), nullptr));
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}
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static bool TestECDSASign(FileTest *t, void *arg) {
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ScopedEC_GROUP group = GetCurve(t, "Curve");
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ScopedBIGNUM priv_key = GetBIGNUM(t, "Private");
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ScopedBIGNUM x = GetBIGNUM(t, "X");
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ScopedBIGNUM y = GetBIGNUM(t, "Y");
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ScopedBIGNUM k = GetBIGNUM(t, "K");
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ScopedBIGNUM r = GetBIGNUM(t, "R");
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ScopedBIGNUM s = GetBIGNUM(t, "S");
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std::vector<uint8_t> digest;
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if (!group || !priv_key || !x || !y || !k || !r || !s ||
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!t->GetBytes(&digest, "Digest")) {
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return false;
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}
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ScopedEC_KEY key(EC_KEY_new());
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ScopedEC_POINT pub_key(EC_POINT_new(group.get()));
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if (!key || !pub_key ||
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!EC_KEY_set_group(key.get(), group.get()) ||
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!EC_KEY_set_private_key(key.get(), priv_key.get()) ||
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!EC_POINT_set_affine_coordinates_GFp(group.get(), pub_key.get(), x.get(),
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y.get(), nullptr) ||
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!EC_KEY_set_public_key(key.get(), pub_key.get()) ||
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!EC_KEY_check_key(key.get())) {
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return false;
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}
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// |ECDSA_do_sign_ex| expects |k| to already be inverted.
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ScopedBN_CTX ctx(BN_CTX_new());
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if (!ctx ||
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!BN_mod_inverse(k.get(), k.get(), EC_GROUP_get0_order(group.get()),
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ctx.get())) {
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return false;
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}
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ScopedECDSA_SIG sig(ECDSA_do_sign_ex(digest.data(), digest.size(), k.get(),
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r.get(), key.get()));
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if (!sig) {
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return false;
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}
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if (BN_cmp(r.get(), sig->r) != 0 ||
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BN_cmp(s.get(), sig->s) != 0) {
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t->PrintLine("Signature mismatch.");
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return false;
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}
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return true;
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}
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int main(int argc, char *argv[]) {
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CRYPTO_library_init();
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if (argc != 2) {
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fprintf(stderr, "%s <test file.txt>\n", argv[0]);
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return 1;
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}
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return FileTestMain(TestECDSASign, nullptr, argv[1]);
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}
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