High Speed Aes S-Box/Inv S-Box Design With S.R And M.C Technique

Abstract

ABSTRACT: In this paper we discuss about the cryptographic performance of Rijndael Algorithm. This algorithm is evaluated from the terms of diffusion, confusion, and space-time complexity of them. The diffusion and confusion of them are quantitatively measured by using the avalanche effect and runs test. The time performance metrics are encryption and decryption speeds while space performance metric is memory utilization. The experimental results show that Rijndael Algorithm have good avalanche properties for the plaintext and key. The cipher texts of Rijndael algorithm have good randomness and unpredictability from the results. The encryption and decryption speed of Rijndael are asymmetric although Rijndael algorithm is a symmetric block cipher. Rijndael algorithm requires less number of CPU and memory resources.  Rijndael algorithm is beneficial where memory resource is key concern. At last it gives efficient results compared to existed system.