• A STREAM CIPHER CRYPTOSYSTEM BASED ON LINEAR FEEDBACK SHIFT REGISTER

Abstract

Cryptography is considered to be a disciple of science of achieving security by converting sensitive information to an un-interpretable form such that it cannot be interpreted by anyone except the transmitter and intended recipient. An innumerable set of cryptographic schemes persist in which each of it has its own affirmative and feeble characteristics. In this paper we present a Stream Cipher Cryptosystem based on Linear Feedback Shift Register where our aim is to encipher Plain texts depending on some parameters, which are continuously varied with every run-time so that the cipher text becomes different for similar entered texts every runtime.