119 lines
3.2 KiB
C++
119 lines
3.2 KiB
C++
//
|
|
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
#include "td/utils/tests.h"
|
|
|
|
#include "td/utils/BigNum.h"
|
|
#include "td/utils/common.h"
|
|
#include "td/utils/crypto.h"
|
|
#include "td/utils/format.h"
|
|
#include "td/utils/logging.h"
|
|
#include "td/utils/misc.h"
|
|
|
|
#include <algorithm>
|
|
#include <limits>
|
|
#include <utility>
|
|
|
|
REGISTER_TESTS(pq)
|
|
|
|
using namespace td;
|
|
|
|
#if TD_HAVE_OPENSSL
|
|
static bool is_prime(uint64 x) {
|
|
for (uint64 d = 2; d < x && d * d <= x; d++) {
|
|
if (x % d == 0) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static std::vector<uint64> gen_primes(uint64 L, uint64 R, int limit = 0) {
|
|
std::vector<uint64> res;
|
|
for (auto x = L; x <= R && (limit <= 0 || res.size() < static_cast<std::size_t>(limit)); x++) {
|
|
if (is_prime(x)) {
|
|
res.push_back(x);
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static std::vector<uint64> gen_primes() {
|
|
std::vector<uint64> result;
|
|
append(result, gen_primes(1, 100));
|
|
append(result, gen_primes((1ull << 31) - 500000, std::numeric_limits<uint64>::max(), 5));
|
|
append(result, gen_primes((1ull << 32) - 500000, std::numeric_limits<uint64>::max(), 5));
|
|
append(result, gen_primes((1ull << 39) - 500000, std::numeric_limits<uint64>::max(), 1));
|
|
return result;
|
|
}
|
|
|
|
using PqQuery = std::pair<uint64, uint64>;
|
|
static bool cmp(const PqQuery &a, const PqQuery &b) {
|
|
return a.first * a.second < b.first * b.second;
|
|
}
|
|
static std::vector<PqQuery> gen_pq_queries() {
|
|
std::vector<PqQuery> res;
|
|
auto primes = gen_primes();
|
|
for (auto q : primes) {
|
|
for (auto p : primes) {
|
|
if (p > q) {
|
|
break;
|
|
}
|
|
res.emplace_back(p, q);
|
|
}
|
|
}
|
|
std::sort(res.begin(), res.end(), cmp);
|
|
return res;
|
|
}
|
|
|
|
static void test_pq(uint64 first, uint64 second) {
|
|
BigNum p = BigNum::from_decimal(PSLICE() << first).move_as_ok();
|
|
BigNum q = BigNum::from_decimal(PSLICE() << second).move_as_ok();
|
|
|
|
BigNum pq;
|
|
BigNumContext context;
|
|
BigNum::mul(pq, p, q, context);
|
|
std::string pq_str = pq.to_binary();
|
|
|
|
std::string p_str, q_str;
|
|
int err = td::pq_factorize(pq_str, &p_str, &q_str);
|
|
CHECK(err == 0) << first << " * " << second;
|
|
|
|
BigNum p_res = BigNum::from_binary(p_str);
|
|
BigNum q_res = BigNum::from_binary(q_str);
|
|
|
|
CHECK(p_str == p.to_binary()) << td::tag("got", p_res.to_decimal()) << td::tag("expected", first);
|
|
CHECK(q_str == q.to_binary()) << td::tag("got", q_res.to_decimal()) << td::tag("expected", second);
|
|
}
|
|
#endif
|
|
|
|
TEST(CryptoPQ, hands) {
|
|
ASSERT_EQ(1ull, td::pq_factorize(0));
|
|
ASSERT_EQ(1ull, td::pq_factorize(1));
|
|
ASSERT_EQ(1ull, td::pq_factorize(2));
|
|
ASSERT_EQ(1ull, td::pq_factorize(3));
|
|
ASSERT_EQ(2ull, td::pq_factorize(4));
|
|
ASSERT_EQ(1ull, td::pq_factorize(5));
|
|
ASSERT_EQ(3ull, td::pq_factorize(7 * 3));
|
|
ASSERT_EQ(179424611ull, td::pq_factorize(179424611ull * 179424673ull));
|
|
|
|
#if TD_HAVE_OPENSSL
|
|
test_pq(4294467311, 4294467449);
|
|
#endif
|
|
}
|
|
|
|
#if TD_HAVE_OPENSSL
|
|
TEST(CryptoPQ, generated_slow) {
|
|
for (int i = 0; i < 100000; i++) {
|
|
test_pq(2, 2);
|
|
}
|
|
auto queries = gen_pq_queries();
|
|
for (auto query : queries) {
|
|
test_pq(query.first, query.second);
|
|
}
|
|
}
|
|
#endif
|