improved results on impossible differential cryptanalysis of reduced-round camellia-192/256

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	improved results on impossible differential cryptanalysis of reduced-round camellia-192/256
	Liu Ya ; Gu Dawu ; Liu Zhiqiang ; Li Wei
刊名	Journal of Systems and Software
	2012
卷号	85 期号:11 页码:2451-2458
ISSN号	1641212
英文摘要	As an international standard adopted by ISO/IEC, the block cipher Camellia has been used in various cryptographic applications. In this paper, we reevaluate the security of Camellia against impossible differential cryptanalysis. Specifically, we propose several 7-round impossible differentials with the FL/FL^-1 layer. Based on one of them, we mount impossible differential attacks on 11-round Camellia-192 and 12-round Camellia-256. The data complexities of our attacks on 11-round Camellia-192 and 12-round Camellia-256 are about 2¹²⁰ chosen plaintexts and 2^119.8 chosen plaintexts, respectively. The corresponding time complexities are approximately 2^167.1 11-round encryptions and 2^220.87 12-round encryptions. As far as we know, our attacks are 2^16.9 times and 2^19.13 times faster than the previously best known ones but have slightly more data. © 2012 Elsevier Inc. All rights reserved.
收录类别	EI
语种	英语
WOS记录号	WOS:000309315500003
公开日期	2012-11-12
内容类型	期刊论文
源URL	[http://ir.iscas.ac.cn/handle/311060/14735]
专题	软件研究所_软件所图书馆_期刊论文
推荐引用方式 GB/T 7714	Liu Ya,Gu Dawu,Liu Zhiqiang,et al. improved results on impossible differential cryptanalysis of reduced-round camellia-192/256[J]. Journal of Systems and Software,2012,85(11):2451-2458.
APA	Liu Ya,Gu Dawu,Liu Zhiqiang,&Li Wei.(2012).improved results on impossible differential cryptanalysis of reduced-round camellia-192/256.Journal of Systems and Software,85(11),2451-2458.
MLA	Liu Ya,et al."improved results on impossible differential cryptanalysis of reduced-round camellia-192/256".Journal of Systems and Software 85.11(2012):2451-2458.