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https://git.wownero.com/wownero/wownero.git
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ea87b30f89
Implements view tags as proposed by @UkoeHB in MRL issue https://github.com/monero-project/research-lab/issues/73 At tx construction, the sender adds a 1-byte view tag to each output. The view tag is derived from the sender-receiver shared secret. When scanning for outputs, the receiver can check the view tag for a match, in order to reduce scanning time. When the view tag does not match, the wallet avoids the more expensive EC operations when deriving the output public key using the shared secret.
291 lines
9.3 KiB
C++
291 lines
9.3 KiB
C++
// Copyright (c) 2014-2022, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#include <cstddef>
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#include <cstring>
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#include <fstream>
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#include <string>
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#include <vector>
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#include "warnings.h"
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#include "misc_log_ex.h"
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#include "crypto/crypto.h"
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#include "crypto/hash.h"
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#include "crypto-tests.h"
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#include "../io.h"
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using namespace std;
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using namespace crypto;
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typedef crypto::hash chash;
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bool operator !=(const ec_scalar &a, const ec_scalar &b) {
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return 0 != memcmp(&a, &b, sizeof(ec_scalar));
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}
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bool operator !=(const ec_point &a, const ec_point &b) {
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return 0 != memcmp(&a, &b, sizeof(ec_point));
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}
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bool operator !=(const key_derivation &a, const key_derivation &b) {
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return 0 != memcmp(&a, &b, sizeof(key_derivation));
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}
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DISABLE_GCC_WARNING(maybe-uninitialized)
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int main(int argc, char *argv[]) {
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TRY_ENTRY();
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fstream input;
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string cmd;
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size_t test = 0;
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bool error = false;
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setup_random();
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if (argc != 2) {
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cerr << "invalid arguments" << endl;
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return 1;
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}
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input.open(argv[1], ios_base::in);
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for (;;) {
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++test;
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input.exceptions(ios_base::badbit);
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if (!(input >> cmd)) {
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break;
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}
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input.exceptions(ios_base::badbit | ios_base::failbit | ios_base::eofbit);
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if (cmd == "check_scalar") {
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ec_scalar scalar;
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bool expected, actual;
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get(input, scalar, expected);
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actual = check_scalar(scalar);
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if (expected != actual) {
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goto error;
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}
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} else if (cmd == "random_scalar") {
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ec_scalar expected, actual;
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get(input, expected);
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random_scalar(actual);
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if (expected != actual) {
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goto error;
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}
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} else if (cmd == "hash_to_scalar") {
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vector<char> data;
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ec_scalar expected, actual;
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get(input, data, expected);
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crypto::hash_to_scalar(data.data(), data.size(), actual);
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if (expected != actual) {
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goto error;
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}
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} else if (cmd == "generate_keys") {
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public_key expected1, actual1;
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secret_key expected2, actual2;
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get(input, expected1, expected2);
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generate_keys(actual1, actual2);
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if (expected1 != actual1 || expected2 != actual2) {
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goto error;
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}
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} else if (cmd == "check_key") {
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public_key key;
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bool expected, actual;
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get(input, key, expected);
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actual = check_key(key);
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if (expected != actual) {
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goto error;
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}
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} else if (cmd == "secret_key_to_public_key") {
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secret_key sec;
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bool expected1, actual1;
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public_key expected2, actual2;
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get(input, sec, expected1);
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if (expected1) {
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get(input, expected2);
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}
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actual1 = secret_key_to_public_key(sec, actual2);
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if (expected1 != actual1 || (expected1 && expected2 != actual2)) {
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goto error;
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}
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} else if (cmd == "generate_key_derivation") {
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public_key key1;
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secret_key key2;
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bool expected1, actual1;
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key_derivation expected2, actual2;
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get(input, key1, key2, expected1);
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if (expected1) {
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get(input, expected2);
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}
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actual1 = generate_key_derivation(key1, key2, actual2);
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if (expected1 != actual1 || (expected1 && expected2 != actual2)) {
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goto error;
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}
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} else if (cmd == "derive_public_key") {
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key_derivation derivation;
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size_t output_index;
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public_key base;
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bool expected1, actual1;
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public_key expected2, actual2;
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get(input, derivation, output_index, base, expected1);
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if (expected1) {
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get(input, expected2);
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}
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actual1 = derive_public_key(derivation, output_index, base, actual2);
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if (expected1 != actual1 || (expected1 && expected2 != actual2)) {
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goto error;
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}
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} else if (cmd == "derive_secret_key") {
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key_derivation derivation;
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size_t output_index;
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secret_key base;
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secret_key expected, actual;
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get(input, derivation, output_index, base, expected);
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derive_secret_key(derivation, output_index, base, actual);
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if (expected != actual) {
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goto error;
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}
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} else if (cmd == "generate_signature") {
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chash prefix_hash;
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public_key pub;
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secret_key sec;
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signature expected, actual;
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get(input, prefix_hash, pub, sec, expected);
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generate_signature(prefix_hash, pub, sec, actual);
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if (expected != actual) {
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goto error;
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}
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} else if (cmd == "check_signature") {
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chash prefix_hash;
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public_key pub;
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signature sig;
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bool expected, actual;
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get(input, prefix_hash, pub, sig, expected);
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actual = check_signature(prefix_hash, pub, sig);
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if (expected != actual) {
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goto error;
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}
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} else if (cmd == "hash_to_point") {
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chash h;
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ec_point expected, actual;
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get(input, h, expected);
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hash_to_point(h, actual);
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if (expected != actual) {
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goto error;
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}
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} else if (cmd == "hash_to_ec") {
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public_key key;
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ec_point expected, actual;
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get(input, key, expected);
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hash_to_ec(key, actual);
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if (expected != actual) {
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goto error;
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}
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} else if (cmd == "generate_key_image") {
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public_key pub;
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secret_key sec;
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key_image expected, actual;
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get(input, pub, sec, expected);
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generate_key_image(pub, sec, actual);
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if (expected != actual) {
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goto error;
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}
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} else if (cmd == "generate_ring_signature") {
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chash prefix_hash;
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key_image image;
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vector<public_key> vpubs;
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vector<const public_key *> pubs;
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size_t pubs_count;
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secret_key sec;
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size_t sec_index;
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vector<signature> expected, actual;
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size_t i;
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get(input, prefix_hash, image, pubs_count);
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vpubs.resize(pubs_count);
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pubs.resize(pubs_count);
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for (i = 0; i < pubs_count; i++) {
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get(input, vpubs[i]);
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pubs[i] = &vpubs[i];
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}
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get(input, sec, sec_index);
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expected.resize(pubs_count);
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getvar(input, pubs_count * sizeof(signature), expected.data());
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actual.resize(pubs_count);
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generate_ring_signature(prefix_hash, image, pubs.data(), pubs_count, sec, sec_index, actual.data());
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if (expected != actual) {
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goto error;
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}
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} else if (cmd == "check_ring_signature") {
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chash prefix_hash;
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key_image image;
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vector<public_key> vpubs;
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vector<const public_key *> pubs;
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size_t pubs_count;
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vector<signature> sigs;
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bool expected, actual;
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size_t i;
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get(input, prefix_hash, image, pubs_count);
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vpubs.resize(pubs_count);
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pubs.resize(pubs_count);
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for (i = 0; i < pubs_count; i++) {
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get(input, vpubs[i]);
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pubs[i] = &vpubs[i];
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}
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sigs.resize(pubs_count);
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getvar(input, pubs_count * sizeof(signature), sigs.data());
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get(input, expected);
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actual = check_ring_signature(prefix_hash, image, pubs.data(), pubs_count, sigs.data());
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if (expected != actual) {
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goto error;
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}
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} else if (cmd == "check_ge_p3_identity") {
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public_key point;
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bool expected_bad, expected_good, result_badfunc, result_goodfunc;
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get(input, point, expected_bad, expected_good);
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result_badfunc = check_ge_p3_identity_failure(point);
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result_goodfunc = check_ge_p3_identity_success(point);
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if (expected_bad != result_badfunc || expected_good != result_goodfunc) {
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goto error;
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}
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} else if (cmd == "derive_view_tag") {
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key_derivation derivation;
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size_t output_index;
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view_tag expected, actual;
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get(input, derivation, output_index, expected);
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derive_view_tag(derivation, output_index, actual);
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if (expected != actual) {
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goto error;
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}
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} else {
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throw ios_base::failure("Unknown function: " + cmd);
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}
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continue;
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error:
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cerr << "Wrong result on test " << test << endl;
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error = true;
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}
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return error ? 1 : 0;
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CATCH_ENTRY_L0("main", 1);
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}
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