There is a shift away from the traditional client-server model to systems based on the peer-to peer network, which allows users share resources effectively. Also, due to increase in number of Internet applications & users, the security issues and pivotal challenges include integrity verification, authentication, and access control etc., are also increasing. As a consequence, the subject of security protection in Network & Communication area has attracted intensive research activities in academia and industry. With the recent advances in Communication & network technology, the applications in commercial security scenario become increasing essential