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	Hctr: a variable-input-length enciphering mode
	Wang, P; Feng, DG; Wu, WL
刊名	Information security and cryptology, proceedings
	2005
卷号	3822页码:175-188
关键词	Blockcipher Tweakable blockcipher Disk sector encryption Modes of operation Symmetric encryption
ISSN号	0302-9743
通讯作者	Wang, p(w.rocking@gmail.com)
英文摘要	This paper proposes a blockcipher mode of operation, hctr, which is a length-preserving encryption mode. hctr turns an n-bit blockcipher into a tweakable blockcipher that supports arbitrary variable input length which is no less than n bits. the tweak length of hctr is fixed and can be zero. we prove that hctr is a strong tweakable pseudorandom permutation (sprp), when the underlying blockcipher is a strong pseudorandom permutation (sprp). hctr is shown to be a very efficient mode of operation when some pre-computations are taken into consideration. arbitrary variable input length brings much flexibility in various application environments. hctr can be used in disk sector encryption, and other length-preserving encryptions, especially for the message that is not multiple of n bits.
WOS关键词	BLOCK CIPHERS
WOS研究方向	Computer Science
WOS类目	Computer Science, Information Systems ; Computer Science, Theory & Methods
语种	英语
出版者	SPRINGER-VERLAG BERLIN
WOS记录号	WOS:000234882000015
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2377901
专题	中国科学院大学
通讯作者	Wang, P
作者单位	1.Chinese Acad Sci, Grad Sch, State Key Lab Informat Secur, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Software, State Key Lab Informat Secur, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Wang, P,Feng, DG,Wu, WL. Hctr: a variable-input-length enciphering mode[J]. Information security and cryptology, proceedings,2005,3822:175-188.
APA	Wang, P,Feng, DG,&Wu, WL.(2005).Hctr: a variable-input-length enciphering mode.Information security and cryptology, proceedings,3822,175-188.
MLA	Wang, P,et al."Hctr: a variable-input-length enciphering mode".Information security and cryptology, proceedings 3822(2005):175-188.

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