/**
* This method is called, when a change cipher spec message is received.
*
* @throws IOException If the message has an invalid content or the
* handshake is not in the correct state.
*/
private void ProcessChangeCipherSpec()
{
while (changeCipherSpecQueue.Available > 0)
{
/*
* A change cipher spec message is only one byte with the value 1.
*/
byte[] b = new byte[1];
changeCipherSpecQueue.Read(b, 0, 1, 0);
changeCipherSpecQueue.RemoveData(1);
if (b[0] != 1)
{
/*
* This should never happen.
*/
this.FailWithError(AL_fatal, AP_unexpected_message);
}
/*
* Check if we are in the correct connection state.
*/
if (this.connection_state != CS_CLIENT_FINISHED_SEND)
{
this.FailWithError(AL_fatal, AP_handshake_failure);
}
rs.ServerClientSpecReceived();
this.connection_state = CS_SERVER_CHANGE_CIPHER_SPEC_RECEIVED;
}
}
/**
* This method is called, when a change cipher spec message is received.
*
* @throws IOException If the message has an invalid content or the
* handshake is not in the correct state.
*/
private void ProcessChangeCipherSpec(byte[] buf, int off, int len)
{
for (int i = 0; i < len; ++i)
{
if (buf[off + i] != 1)
{
this.FailWithError(AlertLevel.fatal, AlertDescription.decode_error);
}
/*
* Check if we are in the correct connection state.
*/
if (this.connection_state != CS_CLIENT_FINISHED_SEND)
{
this.FailWithError(AlertLevel.fatal, AlertDescription.unexpected_message);
}
rs.ServerClientSpecReceived();
this.connection_state = CS_SERVER_CHANGE_CIPHER_SPEC_RECEIVED;
}
}