In recent decade Internet has been emerged as an eye-catching, meteoric and cost-effective medium for distribution of electronic information than the classical one. This initiation and increasing escalation of Internet has caused the information to be paperless and the makeover into electronic compared to the conventional paper distribution. As the information may be available worldwide on the Internet, it is liable to many kinds of threats as illegal copying, distribution, tampering, authentication etc. Till now, the electronic information can be secured by using different techniques like...