Research On Algebraic Property Of AES

With the development of the computer and communication technology, the users' requirements for the information's safety storage, safety process and safety transmission are getting more and more exigent. With the improvement of attack method and computing, DES is not secure for its too short key in length. The Advanced Encryption Standard is a good cryptosystem for its simplicity, high rate and security.This paper has a detail investigation on Rijndael,including its algebraic proper and efficient attacking method.The central contribution is as follows:1. A detail introduction of Rijndael is presented, including the design principle and the current research result2. The only nonlinear part S-box is analyzed and an important algebraic property is introduced. The equivalence of eight Boolean functions is found, and it is a help to analyze AES in detail.3. An efficient attack method against AES is presented with a detail example, which is called Differential Fault Analysis.