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a byte-based guess and determine attack on sosemanuk

文献类型:会议论文

作者Feng Xiutao ; Liu Jun ; Zhou Zhaocun ; Wu Chuankun ; Feng Dengguo
出版日期2010
会议名称16th Annual International Conference on the Theory and Application of Cryptology and Information Security, ASIACRYPT 2010
会议日期40882
会议地点Singapore, Singapore
关键词Cryptography Hydraulics
英文摘要SOSEMANUK is a software-oriented stream cipher proposed by C. Berbain et al for the eSTREAM project and has been selected into the final portfolio. It is noticed that most components of SOSEMANUK can be calculated byte-oriented. Hence an attacker can observe SOSEMANUK from the view of byte units instead of the original 32-bit word units. Based on the above idea, in this work we present a new byte-based guess and determine attack on SOSEMANUK, where we view a byte as a basic data unit and guess some certain bytes of the internal states instead of the whole 32-bit words during the execution of the attack. Surprisingly, our attack only needs a few words of known key stream to recover all the internal states of SOSEMANUK, and the time complexity can be dramatically reduced to O(2176). Since SOSEMANUK has a key with the length varying from 128 to 256 bits, our results show that when the length of an encryption key is larger than 176 bits, our guess and determine attack is more efficient than an exhaustive key search. © 2010 International Association for Cryptologic Research.
收录类别EI
会议主办者International Association for Cryptologic Research (IACR); National Research Foundation of Singapore; Lee Foundation; IBM Singapore Ltd.; OConnors Singapore Ltd.
会议录Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
会议录出版地Germany
ISSN号3029743
ISBN号3642173721
源URL[http://124.16.136.157/handle/311060/8570]  
专题软件研究所_信息安全国家重点实验室_会议论文
推荐引用方式
GB/T 7714
Feng Xiutao,Liu Jun,Zhou Zhaocun,et al. a byte-based guess and determine attack on sosemanuk[C]. 见:16th Annual International Conference on the Theory and Application of Cryptology and Information Security, ASIACRYPT 2010. Singapore, Singapore. 40882.

入库方式: OAI收割

来源:软件研究所

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