Volume 8 Issue 1 - January 2017

  • 1. An enhanced approach on vigenere cipher by polyalphabetics

    Authors : V. Subhashini, Dr.n.geethanjali

    Pages : 372-379

    DOI : http://dx.doi.org/10.21172/1.81.048

    Keywords : Caesar Cipher,Polyalphabetics, Encryption, Decryption, keys

    Abstract :

    Abstract: Cryptography is a study of encryption principles and methods.It is an mechanism designed to detect,prevent,and recover the Security attacks.The main objective of this paper is implementation of Caesar Cipher techniques. In this paper we focused only on Polyalphabetic Cipher Techniques.Using Polyalphabetic Cipher technique,Vigenere Cipher is studied. The Vigenère cipher uses a 26×26 table with A to Z as the row heading and column heading. This paper studies the effect of varying the key length on the performance of Vigenère cipher and its frequency analysis attack. In this paper, Vigenere cipher used A to Z alphabets with special characters. Vigenere cipher uses a 32 X 32 table with A to Z alphabets and special characters with key and without key are explained.Keywords: Caesar Cipher, Polyalphabetics, Encryption, Decryption, keys

    Citing this Journal Article :

    V. Subhashini, Dr.n.geethanjali, "An enhanced approach on vigenere cipher by polyalphabetics", https://www.ijltet.org/journal_details.php?id=910&j_id=3603, Volume 8 Issue 1 - January 2017, 372-379, #ijltetorg