private void button_genResponse_Click(object sender, RoutedEventArgs e)
{
if (string.IsNullOrWhiteSpace(textBox_challengeValue.Text))
{
this.Dispatcher.Invoke(new Action(() =>
{
snackbar.MessageQueue.Enqueue("未收到挑战值，无法计算");
}));
return;
}
//如果已经认证通过就不需要再验证了
if (IsAuthenticated)
{
this.Dispatcher.Invoke(new Action(() =>
{
snackbar.MessageQueue.Enqueue("已认证通过，无需再次操作");
}));
return;
}
StringBuilder sBuilder = new StringBuilder();
byte[] hash;
using (MD5 md5Hash = MD5.Create())
{
//计算响应值
hash = md5Hash.ComputeHash(Encoding.UTF8.GetBytes(textBox_challengeValue.Text));
hash = md5Hash.ComputeHash(hash);
}
//计算响应密文(期望响应)
AES = DataCrypto.GenAesCryptoServiceProvider(Key);
string Response = Convert.ToBase64String(DataCrypto.Encrypt(hash, AES));
textBox_genResponse.Text = Response;
Authen_Message am = new Authen_Message(Status_Flag.Response_Challenge, DateTime.Now, Response);
socketConn.Send(Message2Byte(am));
}
private void Authentication()
{
while (true)
{
int length = -1;
byte[] buffer = new byte[Command_Buffer_Size];
try
{
length = socketConn.Receive(buffer);
}
catch (Exception ex)
{
this.Dispatcher.Invoke(new Action(() =>
{
WriteLog(ex.ToString());
WriteLog("连接已断开");
snackbar.MessageQueue.Enqueue("连接已断开，请重新连接至服务");
button_connect.IsEnabled = true;
button_connect.Content = "尝试连接";
ResetAuthenInfo();
}));
break;
}
byte[] message = new byte[length];
Array.Copy(buffer, message, length);
Authen_Message am = (Authen_Message)Byte2Message(message, "Authen_Message");
this.Dispatcher.Invoke(new Action(() =>
{
listBox_packetInfo.Items.Insert(0, am.MessageInfo());
}));
if (IsTimeOut(DateTime.Now))
{
Authen_Message au = new Authen_Message(Status_Flag.Time_Out, DateTime.Now, null);
WriteLog("接收到超时的命令");
}
if (am.Flag == Status_Flag.Start_Challenge)
{
this.Dispatcher.Invoke(new Action(() =>
{
textBox_challengeValue.Text = am.Extend;
WriteLog("收到挑战值" + am.Extend);
snackbar.MessageQueue.Enqueue("收到挑战值,请及时处理");
}));
}
if (am.Flag == Status_Flag.Authen_Success)
{
IsAuthenticated = true;
this.Dispatcher.Invoke(new Action(() =>
{
WriteLog("认证成功，密钥协商完毕，发送就绪");
snackbar.MessageQueue.Enqueue("认证成功");
}));
Thread trd = new Thread(TransControl);
trd.IsBackground = true;
trd.Start();
break;
}
if (am.Flag == Status_Flag.Authen_Failed)
{
this.Dispatcher.Invoke(new Action(() =>
{
WriteLog("认证失败，请重试");
snackbar.MessageQueue.Enqueue("认证失败");
}));
}
}
}
//将TcP包的内容转换为byte
public static byte[] Message2Byte(Authen_Message am)
{
return(ByteConvertHelper.Object2Bytes(am));
}