With the fast progression of digital data exchange in electronic way, Information Security is becomingmuch more important in data storage and transmission. Information Confidentiality has a prominent significance in thestudy of ethics, law and most recently in Information Systems. With the evolution of human intelligence, the art ofcryptography has become more complex in order to make information more secure. In recent years, a lot of applicationsbased on internet are emerged such as on-line shopping, stock trading, internet banking and electronic bill payment etc.Such transactions, over wire or wireless public networks demand end-to-end secure connections, should beconfidential, to ensure data authentication, accountability and confidentiality, integrity and availability.