Then the standard Rijndael as Advanced Encryption Standard (AES), potentially the world? S The most important block cipher. There are analytical techniques for block ciphers depend on a statistical approach, while new techniques are algebraic in nature. Algebraic aspects of the Advanced Encryption Standard, appearing five years after the publication of the AES, presents the state of the art for the use of algebraic techniques in analyzing the AES. The main target of this work includes academic and industry researchers in cryptology, this book is also suitable for advanced students.