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Improved differential cryptanalysis of serpent

  • Gaoli Wang*
  • , Shaohui Wang
  • *此作品的通讯作者
  • Donghua University
  • CAS - Institute of Software
  • Nanjing University of Posts and Telecommunications

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Serpent is one of the five AES finalist. In 2001, Biham, Dunkelman and Keller present a differential cryptanalysis of Serpent up to 8 rounds with 256-key bits by using 214 6-round differential characteristics with probability 2-93. In this paper we present a new 6-round differential characteristic ΩA with the same probability 2-93. By changing the input differences of ΩA, we get a characteristic ΩB with probability 2-95. We give an improved differential attack on 8-round Serpent with 256-bit keys by using 219.62 6-round characteristics with probability 2-95. Similarly, we present an improved differential attack on 8-round Serpent with 256-bit keys by using 225.24 6-round characteristics with probability 2-97.

源语言英语
主期刊名Proceedings - 2010 International Conference on Computational Intelligence and Security, CIS 2010
367-371
页数5
DOI
出版状态已出版 - 2010
已对外发布
活动2010 International Conference on Computational Intelligence and Security, CIS 2010 - Nanning, 中国
期限: 11 12月 201014 12月 2010

出版系列

姓名Proceedings - 2010 International Conference on Computational Intelligence and Security, CIS 2010

会议

会议2010 International Conference on Computational Intelligence and Security, CIS 2010
国家/地区中国
Nanning
时期11/12/1014/12/10

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