International Arab Conference on Information Technology (ACIT)
Communication has extirpated distances transforming world into global village. But this also wreaked in security threats for transmission of information across the global village. Encryption is an effective solution for secure transmission of data. An efficient encryption methodology not only secures information but also conceal the attacking clues. This paper has proposed an effective cipher based on Kerckhoffs' principle. LFSR based stream cipher produce key, eliminating period longer than plaintext. Plain text is encrypted using classical Vigenere cipher. A novel approach is presented by combing the LFSR key with Vigenere cipher key.