Switched to C++23 as the project standard.

Added a basic parser for client_config and server_config, and added some basic authorization.
Need to work on verification of the server.

src/client/main.cpp

@@ -49,6 +49,9 @@ int main(int argc, char** argv) {
     auto result = options.parse(argc, argv);
     if (result.count("help")) {
         std::cout << options.help() << std::endl;
+        std::cout << "This software is licensed under the GPLv2-only license OR the GPLv3 license.\n";
+        std::cout << "Copyright (C) 2025, The ColumnLynx Contributors.\n";
+        std::cout << "This software is provided under ABSOLUTELY NO WARRANTY, to the extent permitted by law.\n";
         return 0;
     }
 
@@ -67,6 +70,8 @@ int main(int argc, char** argv) {
         log("Using virtual interface: " + tun->getName());
 
         LibSodiumWrapper sodiumWrapper = LibSodiumWrapper();
+        debug("Public Key: " + Utils::bytesToHexString(sodiumWrapper.getPublicKey(), 32));
+        debug("Private Key: " + Utils::bytesToHexString(sodiumWrapper.getPrivateKey(), 64));
 
         std::array<uint8_t, 32> aesKey = {0}; // Defualt zeroed state until modified by handshake
         uint64_t sessionID = 0;

src/client/net/tcp/tcp_client.cpp

@@ -33,9 +33,13 @@ namespace ColumnLynx::Net::TCP {
                                 std::vector<uint8_t> payload;
                                 payload.reserve(1 + crypto_box_PUBLICKEYBYTES);
                                 payload.push_back(Utils::protocolVersion());
-                                payload.insert(payload.end(),
+                                /*payload.insert(payload.end(),
                                     mLibSodiumWrapper->getXPublicKey(),
                                     mLibSodiumWrapper->getXPublicKey() + crypto_box_PUBLICKEYBYTES
+                                );*/
+                                payload.insert(payload.end(),
+                                    mLibSodiumWrapper->getPublicKey(),
+                                    mLibSodiumWrapper->getPublicKey() + crypto_sign_PUBLICKEYBYTES
                                 );
 
                                 mHandler->sendMessage(ClientMessageType::HANDSHAKE_INIT, Utils::uint8ArrayToString(payload.data(), payload.size()));