mirror of
https://github.com/transmission/transmission
synced 2024-12-30 19:46:56 +00:00
280 lines
9.3 KiB
C++
280 lines
9.3 KiB
C++
// This file Copyright (C) 2013-2022 Mnemosyne LLC.
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// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
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// or any future license endorsed by Mnemosyne LLC.
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// License text can be found in the licenses/ folder.
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#include <algorithm>
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#include <array>
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#include <cstring>
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#include <iostream>
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#include <numeric>
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#include <sstream>
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#include <string>
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#include <string_view>
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#include <unordered_set>
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#include "transmission.h"
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#include "peer-mse.h"
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#include "crypto-utils.h"
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#include "utils.h"
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#include "crypto-test-ref.h"
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#include "gtest/gtest.h"
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using namespace std::literals;
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namespace
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{
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auto constexpr SomeHash = tr_sha1_digest_t{
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std::byte{ 0 }, std::byte{ 1 }, std::byte{ 2 }, std::byte{ 3 }, std::byte{ 4 }, std::byte{ 5 }, std::byte{ 6 },
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std::byte{ 7 }, std::byte{ 8 }, std::byte{ 9 }, std::byte{ 10 }, std::byte{ 11 }, std::byte{ 12 }, std::byte{ 13 },
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std::byte{ 14 }, std::byte{ 15 }, std::byte{ 16 }, std::byte{ 17 }, std::byte{ 18 }, std::byte{ 19 },
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};
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template<size_t N>
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std::string toString(std::array<std::byte, N> const& array)
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{
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auto ostr = std::ostringstream{};
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ostr << '[';
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for (auto const b : array)
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{
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ostr << static_cast<unsigned>(b) << ' ';
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}
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ostr << ']';
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return ostr.str();
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}
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} // namespace
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TEST(Crypto, DH)
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{
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auto a = tr_message_stream_encryption::DH{};
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auto b = tr_message_stream_encryption::DH{};
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a.setPeerPublicKey(b.publicKey());
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b.setPeerPublicKey(a.publicKey());
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EXPECT_EQ(toString(a.secret()), toString(b.secret()));
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EXPECT_EQ(a.secret(), b.secret());
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EXPECT_EQ(96U, std::size(a.secret()));
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auto c = tr_message_stream_encryption::DH{};
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c.setPeerPublicKey(b.publicKey());
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EXPECT_NE(a.secret(), c.secret());
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EXPECT_NE(toString(a.secret()), toString(c.secret()));
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}
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TEST(Crypto, encryptDecrypt)
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{
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auto a_dh = tr_message_stream_encryption::DH{};
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auto b_dh = tr_message_stream_encryption::DH{};
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a_dh.setPeerPublicKey(b_dh.publicKey());
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b_dh.setPeerPublicKey(a_dh.publicKey());
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auto constexpr Input1 = "test1"sv;
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auto encrypted1 = std::array<char, 128>{};
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auto decrypted1 = std::array<char, 128>{};
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auto a = tr_message_stream_encryption::Filter{};
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a.encryptInit(false, a_dh, SomeHash);
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std::copy_n(std::begin(Input1), std::size(Input1), std::begin(encrypted1));
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a.encrypt(std::size(Input1), std::data(encrypted1));
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auto b = tr_message_stream_encryption::Filter{};
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b.decryptInit(true, b_dh, SomeHash);
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std::copy_n(std::begin(encrypted1), std::size(Input1), std::begin(decrypted1));
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b.decrypt(std::size(Input1), std::data(decrypted1));
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EXPECT_EQ(Input1, std::data(decrypted1)) << "Input1 " << Input1 << " decrypted1 " << std::data(decrypted1);
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auto constexpr Input2 = "@#)C$@)#(*%bvkdjfhwbc039bc4603756VB3)"sv;
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auto encrypted2 = std::array<char, 128>{};
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auto decrypted2 = std::array<char, 128>{};
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b.encryptInit(true, b_dh, SomeHash);
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std::copy_n(std::begin(Input2), std::size(Input2), std::begin(encrypted2));
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b.encrypt(std::size(Input2), std::data(encrypted2));
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a.decryptInit(false, a_dh, SomeHash);
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std::copy_n(std::begin(encrypted2), std::size(Input2), std::begin(decrypted2));
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a.decrypt(std::size(Input2), std::data(decrypted2));
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EXPECT_EQ(Input2, std::data(decrypted2)) << "Input2 " << Input2 << " decrypted2 " << std::data(decrypted2);
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}
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TEST(Crypto, sha1)
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{
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auto hash1 = tr_sha1::digest("test"sv);
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EXPECT_EQ(
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0,
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memcmp(
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std::data(hash1),
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"\xa9\x4a\x8f\xe5\xcc\xb1\x9b\xa6\x1c\x4c\x08\x73\xd3\x91\xe9\x87\x98\x2f\xbb\xd3",
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std::size(hash1)));
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auto hash2 = tr_sha1::digest("test"sv);
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EXPECT_EQ(hash1, hash2);
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hash1 = tr_sha1::digest("1"sv, "22"sv, "333"sv);
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hash2 = tr_sha1::digest("1"sv, "22"sv, "333"sv);
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EXPECT_EQ(hash1, hash2);
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EXPECT_EQ(
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0,
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memcmp(
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std::data(hash1),
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"\x1f\x74\x64\x8e\x50\xa6\xa6\x70\x8e\xc5\x4a\xb3\x27\xa1\x63\xd5\x53\x6b\x7c\xed",
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std::size(hash1)));
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auto const hash3 = tr_sha1::digest("test"sv);
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EXPECT_EQ("a94a8fe5ccb19ba61c4c0873d391e987982fbbd3"sv, tr_sha1_to_string(hash3));
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auto const hash4 = tr_sha1::digest("te"sv, "st"sv);
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EXPECT_EQ("a94a8fe5ccb19ba61c4c0873d391e987982fbbd3"sv, tr_sha1_to_string(hash4));
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auto const hash5 = tr_sha1::digest("t"sv, "e"sv, std::string{ "s" }, std::array<char, 1>{ { 't' } });
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EXPECT_EQ("a94a8fe5ccb19ba61c4c0873d391e987982fbbd3"sv, tr_sha1_to_string(hash5));
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}
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TEST(Crypto, ssha1)
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{
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struct LocalTest
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{
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std::string_view plain_text;
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std::string_view ssha1;
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};
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auto constexpr Tests = std::array<LocalTest, 2>{ {
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{ "test"sv, "{15ad0621b259a84d24dcd4e75b09004e98a3627bAMbyRHJy"sv },
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{ "QNY)(*#$B)!_X$B !_B#($^!)*&$%CV!#)&$C!@$(P*)"sv, "{10e2d7acbb104d970514a147cd16d51dfa40fb3c0OSwJtOL"sv },
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} };
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auto constexpr HashCount = size_t{ 4 * 1024 };
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for (auto const& [plain_text, ssha1] : Tests)
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{
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auto hashes = std::unordered_set<std::string>{};
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hashes.reserve(HashCount);
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EXPECT_TRUE(tr_ssha1_matches(ssha1, plain_text));
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EXPECT_TRUE(tr_ssha1_matches_(ssha1, plain_text));
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using ssha1_func = std::string (*)(std::string_view plain_text);
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static auto constexpr Ssha1Funcs = std::array<ssha1_func, 2>{ tr_ssha1, tr_ssha1_ };
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for (size_t j = 0; j < HashCount; ++j)
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{
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auto const hash = Ssha1Funcs[j % 2](plain_text);
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// phrase matches each of generated hashes
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EXPECT_TRUE(tr_ssha1_matches(hash, plain_text));
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EXPECT_TRUE(tr_ssha1_matches_(hash, plain_text));
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hashes.insert(hash);
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}
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// confirm all hashes are different
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EXPECT_EQ(HashCount, hashes.size());
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/* exchange two first chars */
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auto phrase = std::string{ plain_text };
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phrase[0] ^= phrase[1];
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phrase[1] ^= phrase[0];
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phrase[0] ^= phrase[1];
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for (auto const& hash : hashes)
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{
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/* changed phrase doesn't match the hashes */
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EXPECT_FALSE(tr_ssha1_matches(hash, phrase));
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EXPECT_FALSE(tr_ssha1_matches_(hash, phrase));
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}
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}
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/* should work with different salt lengths as well */
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EXPECT_TRUE(tr_ssha1_matches("{a94a8fe5ccb19ba61c4c0873d391e987982fbbd3", "test"));
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EXPECT_TRUE(tr_ssha1_matches("{d209a21d3bc4f8fc4f8faf347e69f3def597eb170pySy4ai1ZPMjeU1", "test"));
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}
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TEST(Crypto, sha1FromString)
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{
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// bad lengths
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EXPECT_FALSE(tr_sha1_from_string(""));
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EXPECT_FALSE(tr_sha1_from_string("a94a8fe5ccb19ba61c4c0873d391e987982fbbd"sv));
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EXPECT_FALSE(tr_sha1_from_string("a94a8fe5ccb19ba61c4c0873d391e987982fbbd33"sv));
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// nonhex
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EXPECT_FALSE(tr_sha1_from_string("a94a8fe5ccb19ba61c4cz873d391e987982fbbd3"sv));
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EXPECT_FALSE(tr_sha1_from_string("a94a8fe5ccb19 61c4c0873d391e987982fbbd3"sv));
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// lowercase hex
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auto const baseline = "a94a8fe5ccb19ba61c4c0873d391e987982fbbd3"sv;
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auto const lc = tr_sha1_from_string(baseline);
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EXPECT_TRUE(lc);
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EXPECT_EQ(baseline, tr_sha1_to_string(*lc));
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// uppercase hex should yield the same result
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auto const uc = tr_sha1_from_string(tr_strupper(baseline));
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EXPECT_TRUE(uc);
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EXPECT_EQ(*lc, *uc);
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}
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TEST(Crypto, sha256FromString)
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{
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// bad lengths
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EXPECT_FALSE(tr_sha256_from_string(""));
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EXPECT_FALSE(tr_sha256_from_string("a94a8fe5ccb19ba61c4c0873d391e987982fbbd"sv));
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EXPECT_FALSE(tr_sha256_from_string("a94a8fe5ccb19ba61c4c0873d391e987982fbbd33"sv));
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EXPECT_FALSE(tr_sha256_from_string("05d58dfd14ed21d33add137eb7a2c5d4ef5aaa4a945e654363d32b7c4bf5c92"sv));
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EXPECT_FALSE(tr_sha256_from_string("05d58dfd14ed21d33add137eb7a2c5d4ef5aaa4a945e654363d32b7c4bf5c9299"sv));
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// nonhex
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EXPECT_FALSE(tr_sha256_from_string("a94a8fe5ccb19ba61c4cz873d391e987982fbbd3aaaaaaaaaaaaaaaaaaaaaaa"sv));
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EXPECT_FALSE(tr_sha256_from_string("05 8dfd14ed21d33add137eb7a2c5d4ef5aaa4a945e654363d32b7c4bf5c92"sv));
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// lowercase hex
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auto const baseline = "05d58dfd14ed21d33add137eb7a2c5d4ef5aaa4a945e654363d32b7c4bf5c929"sv;
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auto const lc = tr_sha256_from_string(baseline);
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EXPECT_TRUE(lc);
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EXPECT_EQ(baseline, tr_sha256_to_string(*lc));
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// uppercase hex should yield the same result
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auto const uc = tr_sha256_from_string(tr_strupper(baseline));
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EXPECT_TRUE(uc);
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EXPECT_EQ(*lc, *uc);
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}
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TEST(Crypto, random)
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{
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/* test that tr_rand_int() stays in-bounds */
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for (int i = 0; i < 100000; ++i)
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{
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int const val = tr_rand_int(100);
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EXPECT_LE(0, val);
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EXPECT_LT(val, 100);
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}
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}
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TEST(Crypto, base64)
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{
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auto raw = std::string_view{ "YOYO!"sv };
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auto encoded = tr_base64_encode(raw);
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EXPECT_EQ("WU9ZTyE="sv, encoded);
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EXPECT_EQ(raw, tr_base64_decode(encoded));
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EXPECT_EQ(""sv, tr_base64_encode(""sv));
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EXPECT_EQ(""sv, tr_base64_decode(""sv));
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static auto constexpr MaxBufSize = size_t{ 1024 };
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for (size_t i = 1; i <= MaxBufSize; ++i)
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{
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auto buf = std::string{};
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for (size_t j = 0; j < i; ++j)
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{
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buf += char(tr_rand_int_weak(256));
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}
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EXPECT_EQ(buf, tr_base64_decode(tr_base64_encode(buf)));
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buf = std::string{};
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for (size_t j = 0; j < i; ++j)
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{
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buf += char(1 + tr_rand_int_weak(255));
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}
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EXPECT_EQ(buf, tr_base64_decode(tr_base64_encode(buf)));
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}
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}
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