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Q的线性密码分析 被引量:4

Linear Cryptanalysis of Q Block Cipher
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摘要 对NESSIE公布的 17个分组密码之一的Q进行了线性密码分析 ,攻击所需的数据复杂度不大于 2 118(相应的成功率为 0 .785 ) ,空间复杂度不大于 2 3 3 +2 19+2 18+2 12 +2 11+2 10 .此结果显示Q对线性密码分析是不免疫的 . Q is a block cipher as a candidate for NESSIE. Q is analyzed by linear cryptanalysis. The data complexity of the attack with 0.785 success rate is less than 2118, the storage complexity of the attack is less than 233+219+218+212 +211 +210. The result shows that Q is not immune to linear cryptanalysis.
作者 吴文玲
出处 《计算机学报》 EI CSCD 北大核心 2003年第1期55-59,共5页 Chinese Journal of Computers
基金 国家自然科学基金 ( 60 10 3 0 2 3 ) 国家"九七三"重点基础研究发展规划项目 (G19990 3 5 80 2 )资助
关键词 线性密码分析 线性逼近 密钥 概率 Q分组密码 Algorithms Approximation theory Computational complexity Probability
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参考文献5

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同被引文献28

  • 1盛利元,孙克辉,李传兵.基于切延迟的椭圆反射腔离散混沌系统及其性能研究[J].物理学报,2004,53(9):2871-2876. 被引量:43
  • 2盛利元,张卿,孙克辉,王文广.一种基于混沌映射的DES密钥空间拓展方法[J].通信学报,2005,26(4):122-124. 被引量:6
  • 3Daemen J, Knudsen L, Rijmen V. The Block Cipher Square. G.Goos,J.Hartmanis(Ed.): FSE'97, LNCS 1267, 1997, 28-40
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  • 5Matsui M. Linear Cryptanalysis Method for DES Cipher. L.Park(Ed.): Advances in Cryptology- EUROCRYPT'93, LNCS 765, 1994, 386-397
  • 6Nakahara J, Preneel B, Vandewalle J. Linear Cryptanalysis of Reduced-Round Versions of the SAFER Block Cipher Family. B.Schneier(Ed.): FSE 2000, LNCS, 1978, 2001, 244-261
  • 7Biham E, Dunkelman O, Keller N. Linear Cryptanalysis of Reduced Round Serpent. M.Matsui(Ed.): FSE 2001, LNCS 2355, 2002, 16-27
  • 8Wu Wenling, Feng Dengguo. Linear Cryptanalysis of NUSH Block Cipher. Science in China (Series F), 2002, 45(1): 5947
  • 9Kaliski Jr B, Robshaw M. Linear Cryptanalysis Using Multiple Approximations. M.Naor(Ed.): Advances in Cryptology-CRYPTO'94, LNCS 839, 1994, 26-39
  • 10Knudsen L, RobShaw M. Nonlinear Approximations in Linear Cryptanalysis. U.Maurer(Ed.): Advances in Cryptology-EUCROCRYPTO'96, LNCS 1070, 1996, 252-267

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