public async Task PerformClientHandshake(CancellationToken token)
{
if (_isHandshaking)
{
throw new InvalidOperationException("Handshake already in progress");
}
if (_isAuthenticated)
{
throw new InvalidOperationException("Renegotiation not supported");
}
// Create record protocol handler
_recordHandler = new RecordHandler(_securityParameters.MinimumVersion, isClient: true);
// Create handshake protocol sub handler
_handshakeSession = new ClientHandshakeSession(_securityParameters);
_isHandshaking = true;
await SendClientHello(token);
await ReceiveServerHello(token);
await SendClientKeyExchange(token);
await Task.Delay(100);
//await this.ReceiveAlert(token);
await SendClientChangeCipherSpec(token);
await SendClientFinished(token);
await ReceiveChangeCipherSpecAndFinished(token);
_isHandshaking = false;
_isAuthenticated = true;
}
public IAsyncResult BeginServerHandshake(X509Certificate serverCertificate,
AsyncCallback asyncCallback,
Object asyncState)
{
lock (_handshakeLock) {
if (_isHandshaking)
{
throw new InvalidOperationException("Handshake already in progress");
}
if (_isAuthenticated)
{
throw new InvalidOperationException("Renegotiation not supported");
}
_recordHandler = new RecordHandler(_securityParameters.MinimumVersion, false);
_handshakeSession = new ServerHandshakeSession(_securityParameters);
_isHandshaking = true;
}
AsyncHandshakeResult asyncHandshakeResult = new AsyncHandshakeResult(asyncCallback, asyncState);
_recordStream.BeginReceive(new AsyncCallback(ReceiveHandshakeCallback), asyncHandshakeResult);
return(asyncHandshakeResult);
}
public async Task PerformServerHandshake(X509Certificate serverCertificate, CancellationToken token)
{
if (_isHandshaking)
{
throw new InvalidOperationException("Handshake already in progress");
}
if (_isAuthenticated)
{
throw new InvalidOperationException("Renegotiation not supported");
}
_recordHandler = new RecordHandler(_securityParameters.MinimumVersion, isClient: false);
_handshakeSession = new ServerHandshakeSession(_securityParameters);
_isHandshaking = true;
var timoutCts = new CancellationTokenSource(TimeSpan.FromSeconds(30));
var cts = CancellationTokenSource.CreateLinkedTokenSource(token, timoutCts.Token);
await ReceiveClientHello(cts.Token);
await SendServerHello(cts.Token);
await ReceiveClientKeyExchangeChangeCipherSpecAndFinished(cts.Token);
await SendServerChangeCipherSpec(cts.Token);
await SendServerFinished(cts.Token);
_isHandshaking = false;
_isAuthenticated = true;
}
public IAsyncResult BeginClientHandshake(string targetHost,
AsyncCallback asyncCallback,
Object asyncState)
{
lock (_handshakeLock) {
if (_isHandshaking)
{
throw new InvalidOperationException("Handshake already in progress");
}
if (_isAuthenticated)
{
throw new InvalidOperationException("Renegotiation not supported");
}
_recordHandler = new RecordHandler(_securityParameters.MinimumVersion, true);
_handshakeSession = new ClientHandshakeSession(_securityParameters);
_isHandshaking = true;
}
AsyncHandshakeResult asyncHandshakeResult = new AsyncHandshakeResult(asyncCallback, asyncState);
ProcessSendHandshakePacket(asyncHandshakeResult);
return(asyncHandshakeResult);
}
