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	A meet-in-the-middle attack on the LBlock cipher
	Wei, Yongzhuang (1) ; Su, Chongmao (1) ; Ma, Chunbo (1)
	2014
会议名称	2013 IEEE Conference Anthology, ANTHOLOGY 2013
会议日期	January 1, 2013 - January 8, 2013
会议地点	China
中文摘要	LBlock is a new lightweight Block cipher which was proposed by Wu and Zhang at ACNS2011. The block size of LBlock is 64 bits and its key size is 80 bits. It was reported that the cipher is very suitable for many resource constrained environments (for instance RFID and sensor networking) which usually have weak computation ability, strict power constraints, or a small storage space and so on. In this paper, the security of LBlock cipher against a meet-in-the-middle attack is examined. An 11-round distinguisher is constructed by using the structure of LBlock encryption algorithm. Moreover, it is shown that 19-round LBlock is breakable with a data complexity of 238 chosen plaintexts and a time complexity of 265 19-round LBlock encryptions. This is the first known evaluation of the LBlock cipher against a meet-in-the - middle attack. © 2013 IEEE.
英文摘要	LBlock is a new lightweight Block cipher which was proposed by Wu and Zhang at ACNS2011. The block size of LBlock is 64 bits and its key size is 80 bits. It was reported that the cipher is very suitable for many resource constrained environments (for instance RFID and sensor networking) which usually have weak computation ability, strict power constraints, or a small storage space and so on. In this paper, the security of LBlock cipher against a meet-in-the-middle attack is examined. An 11-round distinguisher is constructed by using the structure of LBlock encryption algorithm. Moreover, it is shown that 19-round LBlock is breakable with a data complexity of 238 chosen plaintexts and a time complexity of 265 19-round LBlock encryptions. This is the first known evaluation of the LBlock cipher against a meet-in-the - middle attack. © 2013 IEEE.
收录类别	EI
会议录出版地	IEEE Computer Society, 2001 L Street N.W., Suite 700, Washington, DC 20036-4928, United States
语种	英语
ISBN号	9781479916603
内容类型	会议论文
源URL	[http://ir.iscas.ac.cn/handle/311060/16579]
专题	软件研究所_软件所图书馆_会议论文
推荐引用方式 GB/T 7714	Wei, Yongzhuang ,Su, Chongmao ,Ma, Chunbo . A meet-in-the-middle attack on the LBlock cipher[C]. 见:2013 IEEE Conference Anthology, ANTHOLOGY 2013. China. January 1, 2013 - January 8, 2013.

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