IMPROVED CAESAR CIPHER WITH RANDOM NUMBER GENERATION TECHNIQUE AND MULTISTAGE ENCRYPTION S


IMPROVED CAESAR CIPHER WITH RANDOM NUMBER GENERATION TECHNIQUE AND MULTISTAGE ENCRYPTION 

S G Srikantaswamy1 and Dr. H D Phaneendra2

1Research scholar, National Institute of Engineering, Mysore
2 Professor and Research Guide, National Institute of Engineering, Mysore

ABSTRACT :

Hence in this paper we have proposed a method to improve Caesar cipher with random number generation technique for key generation operations. The Caesar cipher has been expanded so as to include alphabets, numbers and symbols. The original Caesar cipher was restricted only for alphabets. The key used for Caesar Substitution has been derived using a key Matrix Trace value restricted to Modulo 94. The Matrix elements are generated using recursive random number generation equation, the output of which solely depends on the value of seed selected . In this paper, we made an effort to incorporate modern cipher properties to classical cipher. The second stage of encryption has been performed using columnar transposition with arbitrary random order column selection. Thus the proposed Scheme is a hybrid version of classical and modern cipher properties. The proposed method provides appreciable Security with high throughput and occupies minimum memory space. The Method is resistant against brute-force attack with 93! Combinations of keys, for Caesar encryption.

KEYWORDS:

Encryption, Decryption, Substitution, Cipher, Random Number, Recursive, Primitive root, Plaintext, Ciphertext

SOURCE URL 

https://wireilla.com/papers/ijcis/V2N4/2412ijcis05.pdf

VOLUME LINK 

https://wireilla.com/ijcis/vol2.html



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