我对网络编程相当陌生,我需要通过 TLS 连接 TCP 客户端的帮助。我得到了一个已经编码的项目,它附带了证书和提供的公钥。我已经在我的本地机器上安装了 pfx 证书,并编写了一个指向本地主机的新 TCP 侦听器/服务器和 TCP 客户端,如下所示:
客户端
static void Main(string[] args)
{
string server = "localhost";
TcpClient client = new TcpClient(server, 5997);
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;
//client.Connect(server, 5997);//connection without TLS - authenticating properly
using (SslStream sslStream = new SslStream(client.GetStream(), false,
new RemoteCertificateValidationCallback(ValidateServerCertificate), null))
{
try
{
var servername = "myAuthenticatingServerName";//the server name must be the same as the one on the server certificate
sslStream.AuthenticateAsClient(servername);
try
{
Console.WriteLine("Client Connected...");
// Encode a test message into a byte array.
// Signal the end of the message using the "<EOF>".
byte[] messsage = Encoding.UTF8.GetBytes("Hello from the client.<EOF>");
// Send hello message to the server.
sslStream.Write(messsage);
sslStream.Flush();
// Read message from the server.
string serverMessage = ReadMessage(sslStream);
Console.WriteLine("Server says: {0}", serverMessage);
// Close the client connection.
client.Close();
Console.WriteLine("Client closed.");
}
catch (Exception e)
{
Console.WriteLine("Error..... " + e.StackTrace);
}
}
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