Efficient Realization of Rijndael and Its Performance Analysis

Abstract

The efficient realization of Rijndael algorithm is always a hotpot in research. This paper at first analyzes encryption process of Rijndael, and then it puts forward speedy encryption means based on check-table. The chief method is constructing s-table and mixcolumn-list. By checking table or list twice and 12 times simple circle shift and sum modulo 2, the encrypting of the plaintext can be realized. Thereby the realization efficiency of Rijndael algorithm is improved. At the same time this paper analyzes the excellent performances of Rijndael algorithm in contrast to DES.