A New Method for Meet-in-the-Middle Attacks on Reduced AES

作     者：董晓丽 胡予濮 韦永壮 陈杰 Dong Xiaoli;Hu Yupu;Wei Yongzhuang;Chen Jie

作者机构：Key Lab. of Computer Networks & Information SecurityMinistry of EducationXidian University School of Information and CommunicationGuilin University of Electronic Technology State Key Lab. of Information SecurityInstitute of SoftwareChinese Academy of Sciences 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2011年第8卷第2期

页      面：21-25页

核心收录：

学科分类：11[军事学] 0810[工学-信息与通信工程] 1105[军事学-军队指挥学] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 0839[工学-网络空间安全] 08[工学] 110505[军事学-密码学] 110503[军事学-军事通信学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the Nature Science Foundation of China under grant 60970119, 60833008 the National Basic Research Program of China(973) under grant 2007CB311201 the Fundamental Research Funds for the Central Universities under grant K50510010018 

主　　题：AES Rijndael cryptanalysis meet-in-the-middle attack 

摘      要：A new 5-round distinguisher of AES with key whitening is presented by using the properties of its round transformation. Based on this distinguisher,we present new meet-in-the-middle attacks on reduced AES considering the key schedule and the time-memory tradeoff approach. New attacks improve the best known meet-in-the-middle attacks on reduced AES presented at *** reduce the time complexity of attacks on 7-round AES-192 and 8-round AES-256 by a factor of at least 28. Moreover,the distinguisher can be exploited to develop the attack on 8-round AES-192.