full-round differential attack on twis block cipher

ISCAS OpenIR

	full-round differential attack on twis block cipher
	Su Bozhan; Wu Wenling; Zhang Lei; Li Yanjun
	2011
会议名称	11th International Workshop on Information Security Applications (WISA 2010)
页码	234-242
会议日期	AUG 24-26,
会议地点	Jeju Island, SOUTH KOREA
收录类别	ISTP
ISSN	0302-9743
ISBN	978-3-642-17954-9
部门归属	Su Bozhan Chinese Acad Sci Inst Software State Key Lab Informat Secur Beijing 100190 Peoples R China.
摘要	The 128-bit block cipher TWIS was proposed by Ojha et al in 2009. It is a lightweight block cipher and its design is inspired from CLEFIA. In this paper, we first study the properties of TWIS structure, and as an extension we also consider the generalized TWIS-type structure named G-TWIS cipher whose block size and round number are 4m and n repectively, where n and m are any positive integers. Then we present a series of 10-round differential distinguishers for TWIS and an n-round differential distinguisher for G-TWIS whose probabilities are all equal to 1. It shows that 10-round TWIS cipher and n-round G-TWIS cipher can be distinguished efficiently from random permutation.; The 128-bit block cipher TWIS was proposed by Ojha et al in 2009. It is a lightweight block cipher and its design is inspired from CLEFIA. In this paper, we first study the properties of TWIS structure, and as an extension we also consider the generalized TWIS-type structure named G-TWIS cipher whose block size and round number are 4m and n repectively, where n and m are any positive integers. Then we present a series of 10-round differential distinguishers for TWIS and an n-round differential distinguisher for G-TWIS whose probabilities are all equal to 1. It shows that 10-round TWIS cipher and n-round G-TWIS cipher can be distinguished efficiently from random permutation.
关键词	Block Cipher Twis G-twis Differential Distinguisher Differential Cryptanalysis
主办者	Minist Publ Adm & Secur, Korea Commun Commiss
学科领域	Computer Science
语种	英语
内容类型	会议论文
URI标识	http://ir.iscas.ac.cn/handle/311060/16232
专题	中国科学院软件研究所
推荐引用方式 GB/T 7714	Su Bozhan,Wu Wenling,Zhang Lei,et al. full-round differential attack on twis block cipher[C],2011:234-242.