Key-dependent s-box in lightweight block ciphers

AlDabbagh, S.S.M. and Taha Alshaikhli, Imad Fakhri and Zaba, Muhammad Reza (2014) Key-dependent s-box in lightweight block ciphers. Journal of Theoretical and Applied Information Technology, 62 (2). pp. 554-559. ISSN 1992-8645 (Print) 1817-3195 (Online)

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Abstract

This paper introduces new methods of how to generate a suitable key-dependent substitution boxes (Sboxes) for use in lightweight block ciphers. An S-box is commonly used in block ciphers to provide the crucial property of nonlinearity. And one of the advantages of using key-dependent S-boxes is that it is difficult for an attacker to perform attacks such as differential cryptanalysis on the cipher since the S-boxes are unknown. However, implementing such S-box incurs costs, which is one of the criteria that a lightweight block cipher has to minimize. It is therefore important to have a key-dependent S-box method which always outputs a cryptographically strong S-box and has a small footprint. In this paper, we propose novel methods on how to generate s-boxes based on the value of the secret key. Moreover, this research showed the intensive analysis for cost and security for each method.

Item Type:	Article (Journal)
Additional Information:	6534/36443
Uncontrolled Keywords:	S-Box, PRESENT Lightweight Block Cipher, Key Dependent S-Box, Linear Cryptanalysis And Differential Cryptanalysis
Subjects:	Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Information and Communication Technology Kulliyyah of Information and Communication Technology
Depositing User:	Professor Imad Taha
Date Deposited:	29 Apr 2014 12:06
Last Modified:	06 Sep 2017 10:21
URI:	http://irep.iium.edu.my/id/eprint/36443

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