Secure Communication with Flipping Substitute Permutation Algorithm for Electronic Copy right Management System

The main objective of this paper is to detect the existence of secret information hidden within an image. Cryptography is one of the most interested and important area in the computer industry that deals with secures transmission of information. Encryption, the process which helps for such secure transmission prevents hackers to access the information. And decryption helps to retrieve the original information. Cryptography provides many methods and techniques for secure communication. Currently there are many industry standard encryption/decryption algorithms including RSA, Rijndael, Blowfish and so forth. However, they are fairly complex and require that one spend a lot of time to comprehend and implement them. This paper introduces simple Encryption/decryption algorithm that is fast and fairly secure. The algorithm manipulates a 128-bit input using flipping, Substitution, and Permutation to achieve its encryption/decryption.