An improved secure communications protocol

This paper proposes an improved security communication protocol SCP, which works at the application layer. In this protocol, third party authentication server is used to complete the server and client customer authentication. The hybrid encryption algorithm, which combines block encryption with stream encryption, is adopted to encrypt communication data. SCP provides pseudo- random number encryption, mutual identification authentication, and message integrity check service, and achieves a good network security transmission mechanism. © 2012 Springer-Verlag Berlin Heidelberg.