improved differential cryptanalysis of serpent

ISCAS OpenIR > 2010软件所会议论文

	improved differential cryptanalysis of serpent
	Wang Gaoli; Wang Shaohui
	2010
Conference Name	2010 International Conference on Computational Intelligence and Security, CIS 2010
Source	Proceedings - 2010 International Conference on Computational Intelligence and Security, CIS 2010
Pages	367-371
Conference Date	40878
Conference Place	Nanning, China
Indexed Type	ei
Publish Place	United States
ISBN	9780770000000
Department	(1) School of Computer Science and Technology, Donghua University, Shanghai, China; (2) State Key Laboratory of Information Security, Institute of Software, Chinese Academy of Sciences, Beijing, China; (3) Nanjing University of Posts and Telecommunications, Nanjing, China
English Abstract	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 2^19.62 6-round characteristics with probability 2^-95. Similarly, we present an improved differential attack on 8-round Serpent with 256-bit keys by using 2^25.24 6-round characteristics with probability 2^-97. © 2010 IEEE.
Keyword	Artificial Intelligence Cryptography Lyapunov Methods
Sponsorship	Xidian University; Beijing Normal University; CPS of IEEE
Language	英语
Content Type	会议论文
URI	http://ir.iscas.ac.cn/handle/311060/8794
Collection	2010软件所会议论文
Recommended Citation GB/T 7714	Wang Gaoli,Wang Shaohui. improved differential cryptanalysis of serpent[C]. United States,2010:367-371.

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