Folder, for lab6 PKI

Lab6/client.cpp

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+/*
+  Andreas Gagas
+  3319 - Wireless Networks and Security
+  Lab06 -Implement PKI-Based Authentication
+  client.cpp - this is client
+*/
+
+#pragma comment(lib, "Ws2_32.lib")
+#pragma comment(lib, "cryptlib.lib") 
+
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#include <chrono>
+#include <cstdint>
+
+#include "cryptopp820/cryptlib.h"
+#include "cryptopp820/des.h"
+#include "cryptopp820/osrng.h"
+#include "cryptopp820/hex.h"
+#include "cryptopp820/secblock.h"
+#include "cryptopp820/modes.h"
+#include "cryptopp820/rsa.h"
+
+#define DEFAULT_PORT_NUM 8000 
+#define BUFFER_LENGTH 512 
+
+#define ID_CA "ID-CA"
+#define ID_C "ID-Client"
+
+
+int main(int argc, char** argv) {
+
+
+  return 0; 
+}

Lab6/server.cpp

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+/*
+  Andreas Gagas
+  3319 - Wireless Networks and Security
+  Lab06 -Implement PKI-Based Authentication
+  server.cpp - this is our application server
+*/
+
+#pragma comment(lib, "Ws2_32.lib")
+#pragma comment(lib, "cryptlib.lib") 
+
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#include <chrono>
+#include <cstdint>
+
+#include "cryptopp820/cryptlib.h"
+#include "cryptopp820/des.h"
+#include "cryptopp820/osrng.h"
+#include "cryptopp820/hex.h"
+#include "cryptopp820/secblock.h"
+#include "cryptopp820/modes.h"
+#include "cryptopp820/rsa.h"
+
+#define DEFAULT_PORT_NUM 8000 
+#define BUFFER_LENGTH 512 
+
+#define ID_CA "ID-CA"
+#define ID_S "ID-Server"
+
+long long int get_epoch_time_seconds(); 
+std::string encrypt_rsa(CryptoPP::RSA::PublicKey key, std::string plain);
+std::string decrypt_rsa(CryptoPP::RSA::PrivateKey key, std::string cipher);
+
+
+int main(int argc, char** argv) {
+
+  // Get port_num
+  int port_num;
+
+  if (argc == 1) port_num = DEFAULT_PORT_NUM;
+  else port_num = atoi(argv[1]);
+
+  if (argc > 2) {
+    std::cout << "Too many args, include the port num or nothing";
+    exit(1);
+  }
+
+  std::string AD_C = "127.0.01:" + std::to_string(port_num);
+
+  // ====================== STEP 1 ("registers" with CA to get own public/private keys and cert) =======
+
+
+
+
+  //  ===================== Network Setup (Winsock)  ===================================================
+
+  // Init Winsock
+  WSADATA wsa_data;
+
+  int retval = WSAStartup(MAKEWORD(2, 2), &wsa_data);
+  if (retval != 0) {
+    std::cout << "Error, WSAStartup failed" << std::endl;
+    return 1;
+  }
+
+  // Prepare sockaddr_in structure
+  struct sockaddr_in server, client;
+
+  server.sin_family = AF_INET;
+  server.sin_addr.s_addr = INADDR_ANY; // default 127.0.0.1 
+  server.sin_port = htons(port_num);  // default is 8000
+
+  // Create Socket (server) 
+  SOCKET server_socket;
+
+  server_socket = socket(AF_INET, SOCK_STREAM, 0);
+  if (server_socket == INVALID_SOCKET) {
+    std::cout << "Error, socket creation failed" << std::endl;
+    WSACleanup();
+    return 1;
+  }
+
+  // Bind (server socket address to socket desc.) 
+  retval = bind(server_socket, (struct sockaddr*)&server, sizeof(server));
+  if (retval == SOCKET_ERROR) {
+    std::cout << "Error, failed to bind" << std::endl;
+    closesocket(server_socket);
+    WSACleanup();
+    return 1;
+  }
+
+  // Listen
+  retval = listen(server_socket, SOMAXCONN);
+  std::cout << std::endl << "Waiting for incoming connection from 127.0.0.1 on PORT: " << port_num << std::endl;
+  if (retval == SOCKET_ERROR) {
+    std::cout << "Error, failed to listen" << std::endl;
+    closesocket(server_socket);
+    WSACleanup();
+    return 1;
+  }
+
+  // Accept connection (client) 
+  SOCKET client_socket;
+
+  client_socket = accept(server_socket, NULL, NULL);
+  if (client_socket == INVALID_SOCKET) {
+    std::cout << "Error, failed to accept connection" << std::endl;
+    closesocket(server_socket);
+    WSACleanup();
+    return 1;
+  }
+
+  std::cout << "(S) Connected" << std::endl << std::endl;
+  closesocket(server_socket);
+
+  char message_receive[BUFFER_LENGTH] = { 0 };
+  int retval_send = 0, retval_receive = 0;
+
+  std::string plaintext, ciphertext; 
+
+
+
+
+
+
+
+
+  return 0; 
+}
+
+long long int get_epoch_time_seconds() {
+  // get time stamp (epoch equivalent) 
+
+  long long int time = std::chrono::duration_cast<std::chrono::seconds>(std::chrono::system_clock::now().time_since_epoch()).count();
+
+  return time;
+}
+
+std::string encrypt_rsa(CryptoPP::RSA::PublicKey key, std::string plain) {
+  // RSA encryption (RSAES encryption scheme (OAEP using SHA-256). use CryptoPP filters to do so ...)
+
+
+
+
+  return ""; 
+}
+
+std::string decrypt_rsa(CryptoPP::RSA::PrivateKey key, std::string cipher) {
+
+
+  return "";
+}