Zahra Heydaran Daroogheh Amnyieh - Department of Electrical Engineering, Dolatabad Branch, Islamic Azad University, Isfahan, Iran.

In this paper we present a new approach for distinguishing the iterative structure of hash function from a prefect hash function and we cryptanalysis the AES hashalgorithm and show that it has not suitable security against different attacks For this reason.

Cipher Block Chaining, Collision, Joux Attack, Markel-Damgard, Preimage, Random Oracle,Wang Attack