Secure data communication in local area networks

A secure data exchange (SDE) protocol to provide data confidentiality for secure data communication between two authorized end user systems in an IEEE 802 Local Area Network (LAN) environment is presented. In the development of this protocol, the various primitives used and parameters included in them are given. Also, the secure transmission and reception of these primitives between peer layer entities of source and destination end user systems are presented to achieve data confidentiality security service.<>