Impossible Differential Analysis of Reduced Round CLEFIA

Authors:
Wenying Zhang;Jing Han
Affiliations:
School of Information Science and Engineering, Shandong Normal University, Jinan, China 250014 and State Key Laboratory of Information Security, Graduate University, Chinese Academy of Sciences, B ...;School of Information Science and Engineering, Shandong Normal University, Jinan, China 250014
Venue:
Information Security and Cryptology
Year:
2009

Citing 6
Cited 3

Impossible Differential Cryptanalysis of CLEFIA

Fast Software Encryption
Cryptanalysis of Skipjack reduced to 31 rounds using impossible differentials

EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
Differential fault analysis on CLEFIA

ICICS'07 Proceedings of the 9th international conference on Information and communications security
Improving the efficiency of impossible differential cryptanalysis of reduced Camellia and MISTY1

CT-RSA'08 Proceedings of the 2008 The Cryptopgraphers' Track at the RSA conference on Topics in cryptology
New observation on camellia

SAC'05 Proceedings of the 12th international conference on Selected Areas in Cryptography
The 128-bit blockcipher CLEFIA

FSE'07 Proceedings of the 14th international conference on Fast Software Encryption

Impossible differential cryptanalysis of 13-round CLEFIA-128

Journal of Systems and Software
Improved integral attacks on reduced-round CLEFIA block cipher

WISA'11 Proceedings of the 12th international conference on Information Security Applications
Impossible differential cryptanalysis on tweaked E2

NSS'12 Proceedings of the 6th international conference on Network and System Security

Quantified Score

Hi-index	0.00

Visualization

Abstract

CLEFIA is a new block cipher proposed by SONY corporation recently. The fundamental structure of CLEFIA is a generalized Feistel structure consisting of 4 data lines. Convenient for cryptanalysis, we rewrite the cipher in traditional Feistel structure consisting of 2 data lines. We proposed a new 9-round impossible differential. By using the 9 round impossible differential, we presented an idea on the analysis of 14-round CLEFIA-128 without whitening layers.