void Connected()
{
ipe = new IPEndPoint(IPAddress.Any, 9050);
server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
server.Bind(ipe);
Thread Listen = new Thread(() =>
{
try
{
while (true)
{
server.Listen(100);
client = server.Accept();
Connection++;
//Gữi public key cho client
byte[] laydodai = BitConverter.GetBytes(khoapublic.Length);
client.Send(laydodai);
byte[] Keypublic = khoapublic;
client.Send(Keypublic);
//Nhận public key của client
byte[] nhandodai = new byte[1024];
client.Receive(nhandodai);
nhankey = new byte[BitConverter.ToInt32(nhandodai, 0)];
client.Receive(nhankey);
keyclient = Convert.ToBase64String(nhankey);
txtkeyclient.Text = keyclient;
//Tạo khóa bí mật
diff.LayKhoaBiMat(nhankey);
khoabimat = diff.aes.Key;
keysecret = Convert.ToBase64String(khoabimat);
txtSecretkey.Text = keysecret;
ns = new NetworkStream(client);
LstMS.Items.Add("Co:" + Connection + " client ket noi toi.");
string welcome = "Welcome to my test server";
byte[] data = new byte[1024];
data = Encoding.ASCII.GetBytes(welcome);
ns.Write(data, 0, data.Length);
Thread receive = new Thread(Receive);
receive.IsBackground = true;
receive.Start(client);
}
}
catch
{
ipe = new IPEndPoint(IPAddress.Any, 9050);
server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
}
}
);
CreatePublicKey();
Listen.IsBackground = true;
Listen.Start();
}
void Connect()
{
clientList = new List <Socket>();
//IP của server (127.0.0.1)
IP = new IPEndPoint(IPAddress.Any, 9999);
server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
//đợi ip
server.Bind(IP);
Thread listen = new Thread(() => {
try
{
while (true)
{
server.Listen(100);
client = server.Accept();
clientList.Add(client);
// lấy độ dài khóa public của server
byte[] laydodai = BitConverter.GetBytes(khoapublic.Length);
// gửi độ dài khóa public cho client
client.Send(laydodai);
// lấy khóa public
byte[] Keypublic = khoapublic;
// gửi khóa public cho client
client.Send(Keypublic);
// Nhận độ dài của khóa public từ client
byte[] nhandodai = new byte[1024];
client.Receive(nhandodai);
// Nhận khóa public của client
nhankey = new byte[BitConverter.ToInt32(nhandodai, 0)];
client.Receive(nhankey);
// add vào textbox
keyclient = Convert.ToBase64String(nhankey);
txtkeyclient.Text = keyclient;
//Lấy khóa public từ client để tạo khóa chung
diff.LayKhoaBiMat(nhankey);
khoabimat = diff.aes.Key;
keysecret = Convert.ToBase64String(khoabimat);
txbSecretkey.Text = keysecret;
Thread receive = new Thread(Receive);
receive.IsBackground = true;
receive.Start(client);
}
}
catch
{
MessageBox.Show("Có lỗi trao đổi Key");
}
});
TaoKey();
listen.IsBackground = true;
listen.Start();
}
void Connect()
{
clientList = new List <Socket>();
IP = new IPEndPoint(IPAddress.Any, 9999);
server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
server.Bind(IP);
Thread listen = new Thread(() => {
try
{
while (true)
{
server.Listen(100);
client = server.Accept();
clientList.Add(client);
byte[] laydodai = BitConverter.GetBytes(khoapublic.Length);
client.Send(laydodai);
byte[] Keypublic = khoapublic;
client.Send(Keypublic);
byte[] nhandodai = new byte[1024];
client.Receive(nhandodai);
nhankey = new byte[BitConverter.ToInt32(nhandodai, 0)];
client.Receive(nhankey);
keyclient = Convert.ToBase64String(nhankey);
textBox2.Text = keyclient;
diff.LayKhoaBiMat(nhankey);
khoabimat = diff.aes.Key;
keysecret = Convert.ToBase64String(khoabimat);
textBox4.Text = keysecret;
Thread receive = new Thread(Receive);
receive.IsBackground = true;
receive.Start(client);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
});
TaoKey();
listen.IsBackground = true;
listen.Start();
}
