.NET中加密和解密的实现方法2
.NET中加密和解密的实现方法2,.NET中加密和解密的实现方法2
namespace com.billdawson.crypto{public class CryptoServer{private const int RSA_KEY_SIZE_BITS = 1024;private const int RSA_KEY_SIZE_BYTES = 252;private const int TDES_KEY_SIZE_BITS = 192;public static void Main(string[] args){int port;string msg;TcpListener listener;TcpClient client;SymmetricAlgorithm symm;RSACryptoServiceProvider rsa;//获取端口try{port = Int32.Parse(args[0]);msg = args[1];}catch{Console.WriteLine(USAGE);return;}//建立监听try{listener = new TcpListener(port);listener.Start();Console.WriteLine("Listening on port {0}...",port);client = listener.AcceptTcpClient();Console.WriteLine("connection....");}catch (Exception e){Console.WriteLine(e.Message);Console.WriteLine(e.StackTrace);return;}try{ rsa = new RSACryptoServiceProvider();rsa.KeySize = RSA_KEY_SIZE_BITS;// 获取客户端公共密钥rsa.ImportParameters(getClientPublicKey(client));symm = new TripleDESCryptoServiceProvider();symm.KeySize = TDES_KEY_SIZE_BITS;