I'm working on a client handshake finished message for a TLS client, and I'm reading through the RFC 2246 spec. The spec states (in section 7.4.9):
The hash contained in finished messages sent by the server incorporate Sender.server; those sent by the client incorporate Sender.client. The value handshake_messages includes all handshake messages starting at client hello up to, but not including, this finished message. This may be different from handshake_messages in Section 7.4.8 because it would include the certificate verify message (if sent). Also, the handshake_messages for the finished message sent by the client will be different from that for the finished message sent by the server, because the one which is sent second will include the prior one.
Is anyone able to clear up what it means in the first sentence with regards to the Sender.server and Sender.client?