Novel Cipher Technique Using Substitution Method

Shobha Vatsa, Tanmeya Mohan, A. K. Vatsa

Abstract


Cryptography plays a very vital role in the field of Network Security. It is a complex and mathematically challenging field of study. Always there exists a need for confidentiality and integrity of all information being transmitted on the network that is very important for certain communicating parties. The data being transmitted needs to be kept secure and out of reach for unauthorized access. In this paper, we propose a new symmetric substitution cipher technique using a mechanism on vowel, consonants of English language and numeric digits, which exploits the disadvantages of the symmetric substitution techniques previously known to us. Also certain new aspects of encryption and decryption have been explored.


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