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Codechange: add set of classes providing authentication and encryption

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Rubidium
2024-03-14 20:07:31 +01:00
committed by rubidium42
parent 88cf99017a
commit fb9d4afa5c
6 changed files with 1305 additions and 0 deletions
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1
src/tests/CMakeLists.txt
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@@ -9,6 +9,7 @@ add_test_files(
string_func.cpp
strings_func.cpp
test_main.cpp
test_network_crypto.cpp
test_script_admin.cpp
test_window_desc.cpp
)

199
src/tests/test_network_crypto.cpp Normal file
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@@ -0,0 +1,199 @@
/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file test_network_crypto.cpp Tests for network related crypto functions. */
#include "../stdafx.h"
#include "../3rdparty/catch2/catch.hpp"
#include "../core/format.hpp"
#include "../network/network_crypto_internal.h"
#include "../network/core/packet.h"
#include "../string_func.h"
class MockNetworkSocketHandler : public NetworkSocketHandler {
};
static MockNetworkSocketHandler mock_socket_handler;
static Packet CreatePacketForReading(Packet &source)
{
source.PrepareToSend();
Packet dest(&mock_socket_handler, COMPAT_MTU, source.Size());
auto transfer_in = [](Packet &source, char *dest_data, size_t length) {
auto transfer_out = [](char *dest_data, const char *source_data, size_t length) {
std::copy(source_data, source_data + length, dest_data);
return length;
};
return source.TransferOutWithLimit(transfer_out, length, dest_data);
};
dest.TransferIn(transfer_in, source);
dest.PrepareToRead();
dest.Recv_uint8(); // Ignore the type
return dest;
}
class TestPasswordRequestHandler : public NetworkAuthenticationPasswordRequestHandler {
private:
std::string password;
public:
TestPasswordRequestHandler(std::string &password) : password(password) {}
void SendResponse() override {}
void AskUserForPassword(std::shared_ptr<NetworkAuthenticationPasswordRequest> request) override { request->Reply(this->password); }
};
static void TestAuthentication(NetworkAuthenticationServerHandler &server, NetworkAuthenticationClientHandler &client,
NetworkAuthenticationServerHandler::ResponseResult expected_response_result,
NetworkAuthenticationClientHandler::RequestResult expected_request_result)
{
Packet request(&mock_socket_handler, PacketType{});
server.SendRequest(request);
request = CreatePacketForReading(request);
CHECK(client.ReceiveRequest(request) == expected_request_result);
Packet response(&mock_socket_handler, PacketType{});
client.SendResponse(response);
response = CreatePacketForReading(response);
CHECK(server.ReceiveResponse(response) == expected_response_result);
}
TEST_CASE("Authentication_KeyExchangeOnly")
{
X25519KeyExchangeOnlyServerHandler server(X25519SecretKey::CreateRandom());
X25519KeyExchangeOnlyClientHandler client(X25519SecretKey::CreateRandom());
TestAuthentication(server, client, NetworkAuthenticationServerHandler::AUTHENTICATED, NetworkAuthenticationClientHandler::READY_FOR_RESPONSE);
}
static void TestAuthenticationPAKE(std::string server_password, std::string client_password,
NetworkAuthenticationServerHandler::ResponseResult expected_response_result)
{
NetworkAuthenticationDefaultPasswordProvider server_password_provider(server_password);
X25519PAKEServerHandler server(X25519SecretKey::CreateRandom(), &server_password_provider);
X25519PAKEClientHandler client(X25519SecretKey::CreateRandom(), std::make_shared<TestPasswordRequestHandler>(client_password));
TestAuthentication(server, client, expected_response_result, NetworkAuthenticationClientHandler::AWAIT_USER_INPUT);
}
TEST_CASE("Authentication_PAKE")
{
SECTION("Correct password") {
TestAuthenticationPAKE("sikrit", "sikrit", NetworkAuthenticationServerHandler::AUTHENTICATED);
}
SECTION("Empty password") {
TestAuthenticationPAKE("", "", NetworkAuthenticationServerHandler::AUTHENTICATED);
}
SECTION("Wrong password") {
TestAuthenticationPAKE("sikrit", "secret", NetworkAuthenticationServerHandler::NOT_AUTHENTICATED);
}
}
static void TestAuthenticationAuthorizedKey(const X25519SecretKey &client_secret_key, const X25519PublicKey &server_expected_public_key,
NetworkAuthenticationServerHandler::ResponseResult expected_response_result)
{
std::vector<std::string> authorized_keys;
authorized_keys.emplace_back(FormatArrayAsHex(server_expected_public_key));
NetworkAuthenticationDefaultAuthorizedKeyHandler authorized_key_handler(authorized_keys);
X25519AuthorizedKeyServerHandler server(X25519SecretKey::CreateRandom(), &authorized_key_handler);
X25519AuthorizedKeyClientHandler client(client_secret_key);
TestAuthentication(server, client, expected_response_result, NetworkAuthenticationClientHandler::READY_FOR_RESPONSE);
}
TEST_CASE("Authentication_AuthorizedKey")
{
auto client_secret_key = X25519SecretKey::CreateRandom();
auto valid_client_public_key = client_secret_key.CreatePublicKey();
auto invalid_client_public_key = X25519SecretKey::CreateRandom().CreatePublicKey();
SECTION("Correct public key") {
TestAuthenticationAuthorizedKey(client_secret_key, valid_client_public_key, NetworkAuthenticationServerHandler::AUTHENTICATED);
}
SECTION("Incorrect public key") {
TestAuthenticationAuthorizedKey(client_secret_key, invalid_client_public_key, NetworkAuthenticationServerHandler::NOT_AUTHENTICATED);
}
}
TEST_CASE("Authentication_Combined")
{
auto client_secret_key = X25519SecretKey::CreateRandom();
std::string client_secret_key_str = FormatArrayAsHex(client_secret_key);
auto client_public_key = client_secret_key.CreatePublicKey();
std::string client_public_key_str = FormatArrayAsHex(client_public_key);
std::vector<std::string> valid_authorized_keys;
valid_authorized_keys.emplace_back(client_public_key_str);
NetworkAuthenticationDefaultAuthorizedKeyHandler valid_authorized_key_handler(valid_authorized_keys);
std::vector<std::string> invalid_authorized_keys;
invalid_authorized_keys.emplace_back("not-a-valid-authorized-key");
NetworkAuthenticationDefaultAuthorizedKeyHandler invalid_authorized_key_handler(invalid_authorized_keys);
std::vector<std::string> no_authorized_keys;
NetworkAuthenticationDefaultAuthorizedKeyHandler no_authorized_key_handler(no_authorized_keys);
std::string no_password = "";
NetworkAuthenticationDefaultPasswordProvider no_password_provider(no_password);
std::string valid_password = "sikrit";
NetworkAuthenticationDefaultPasswordProvider valid_password_provider(valid_password);
std::string invalid_password = "secret";
NetworkAuthenticationDefaultPasswordProvider invalid_password_provider(invalid_password);
auto client = NetworkAuthenticationClientHandler::Create(std::make_shared<TestPasswordRequestHandler>(valid_password), client_secret_key_str, client_public_key_str);
SECTION("Invalid authorized keys, invalid password") {
auto server = NetworkAuthenticationServerHandler::Create(&invalid_password_provider, &invalid_authorized_key_handler);
TestAuthentication(*server, *client, NetworkAuthenticationServerHandler::RETRY_NEXT_METHOD, NetworkAuthenticationClientHandler::READY_FOR_RESPONSE);
TestAuthentication(*server, *client, NetworkAuthenticationServerHandler::NOT_AUTHENTICATED, NetworkAuthenticationClientHandler::AWAIT_USER_INPUT);
}
SECTION("Invalid authorized keys, valid password") {
auto server = NetworkAuthenticationServerHandler::Create(&valid_password_provider, &invalid_authorized_key_handler);
TestAuthentication(*server, *client, NetworkAuthenticationServerHandler::RETRY_NEXT_METHOD, NetworkAuthenticationClientHandler::READY_FOR_RESPONSE);
TestAuthentication(*server, *client, NetworkAuthenticationServerHandler::AUTHENTICATED, NetworkAuthenticationClientHandler::AWAIT_USER_INPUT);
}
SECTION("Valid authorized keys, valid password") {
auto server = NetworkAuthenticationServerHandler::Create(&valid_password_provider, &valid_authorized_key_handler);
TestAuthentication(*server, *client, NetworkAuthenticationServerHandler::AUTHENTICATED, NetworkAuthenticationClientHandler::READY_FOR_RESPONSE);
}
SECTION("No authorized keys, invalid password") {
auto server = NetworkAuthenticationServerHandler::Create(&invalid_password_provider, &no_authorized_key_handler);
TestAuthentication(*server, *client, NetworkAuthenticationServerHandler::NOT_AUTHENTICATED, NetworkAuthenticationClientHandler::AWAIT_USER_INPUT);
}
SECTION("No authorized keys, valid password") {
auto server = NetworkAuthenticationServerHandler::Create(&valid_password_provider, &no_authorized_key_handler);
TestAuthentication(*server, *client, NetworkAuthenticationServerHandler::AUTHENTICATED, NetworkAuthenticationClientHandler::AWAIT_USER_INPUT);
}
SECTION("No authorized keys, no password") {
auto server = NetworkAuthenticationServerHandler::Create(&no_password_provider, &no_authorized_key_handler);
TestAuthentication(*server, *client, NetworkAuthenticationServerHandler::AUTHENTICATED, NetworkAuthenticationClientHandler::READY_FOR_RESPONSE);
}
}