ON DECORRELATED FAST CIPHER  

作　　者：Wu Wenling Li Bao Feng Denguo Qing Sihan(Engineering Research Center for Information Security Technology,Chinese Academy of Sciences, Beijing 100080) 

出　　处：《Journal of Electronics(China)》2000年第1期94-96,共3页电子科学学刊（英文版）

摘　　要：Decorrelated Fast Cipher(DFC) is a candidate for the Advanced Encryption Standard (AES). It is shown that the cryptographic properties of the confusion permutation of DFC are weak in this paper. With the same F-function of DFC, a Feistel cipher VDFC which has no resistance against differential cryptanalysis is constructed. This demonstrates the importance of the key addition into DFC sufficiently. As a result, DFC may not be qualified candidate for the AES.Decorrelated Fast Cipher(DFC) is a candidate for the Advanced Encryption Standard (AES). It is shown that the cryptographic properties of the confusion permutation of DFC are weak in this paper. With the same F-function of DFC, a Feistel cipher VDFC which has no resistance against differential cryptanalysis is constructed. This demonstrates the importance of the key addition into DFC sufficiently. As a result, DFC may not be qualified candidate for the AES.

关 键 词：ROUND function PERMUTATION DIFFERENTIAL CRYPTANALYSIS NONLINEARITY 

分 类 号：TN918[电子电信—通信与信息系统]