NDLI: On Design of Nonlinear Operations and Round Functions of Block Ciphers with Resistance to ASCAs

Content Provider	IEEE Xplore Digital Library
Author	Tang Ming Sun Weijin Gao Si Wu Yuan Peng Hongbo Qiu Zhenlong Wang Xin
Copyright Year	2013
Description	Author affiliation: State Key Lab. of AIS & TC, Wuhan Univ., Wuhan, China (Tang Ming) \|\| Sch. of Comput., Wuhan Univ., Wuhan, China (Sun Weijin; Wu Yuan; Peng Hongbo; Qiu Zhenlong; Wang Xin) \|\| Inst. of Software, Beijing, China (Gao Si)
Abstract	As a combination of algebraic attacks and side-channel attacks, the ASCA (Algebraic Side-Channel Attack) has become a very effective attack against block ciphers. From cryptographic designers' point of view, the knowledge of the minimal number of rounds needed in ASCAs will be helpful to improve the design of cryptographic algorithms by means of a few lightweight countermeasures. However, there is still neither a method to evaluate the minimal number of rounds needed in ASCAs nor a security index to characterize the resistance against ASCAs up to now. In this paper, based on information theory, a method to evaluate the security of block ciphers against ASCAs under the Hamming weight model has been investigated. Relying on the above evaluation method, we further propose a security index referred to as HWE (Hamming Weight Extension) to measure the resistance of nonlinear operations and round functions of block ciphers to ASCAs. Furthermore, we show that the HWE and another important cryptographic index, it nonlinearity, are restricted mutually when ASCAs and linear analyses are taken account of simultaneously. Finally we perform experiment with the MIBS algorithm, and need to iterate at least 4 rounds of the MIBS to guarantee that the HWEs of both nonlinear operations and round functions are nonzero, which are in consistency with our theoretical analyses.
Sponsorship	IEEE Syst. Man Cybern.
Starting Page	226
Ending Page	232
File Size	243151
Page Count	7
File Format	PDF
ISBN	9780769549880
DOI	10.1109/INCoS.2013.40
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-09
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ciphers Hamming Weight model Block cipher Round function Nonlinear operation Educational institutions Mathematical model Hamming weight Equations ASCA
Content Type	Text
Resource Type	Article

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