Improving the security of LBlock lightweight algorithm using bit permutation

AlDabbagh, Sufyan Salim Mahmood and Alshaikhli, Imad Fakhri Taha (2013) Improving the security of LBlock lightweight algorithm using bit permutation. In: 2nd International Conference on Advanced Computer Science Applications and Technologies (ACSAT2013), 22-24 December 2013, Kuching, Sarawak.

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Abstract

Lightweight block cipher algorithms are important for constrained environment. LBlock uses word permutation to do the diffusion while this research uses bit permutation to increase the number of active Substitution box (S-box). The number of active S-box is a regular method to evaluate the security against linear and differential attacks. The bit permutation method is described in this research with analysis and discussion. The preliminary results show that the proposed algorithm has 32 active S-box for 13 rounds which is higher than 32 active S-box for 15 rounds of LBlock algorithm. Also, we can conclude that the proposed algorithm is better than LBlock algorithm in the perspective of security.

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	6534/ 37414 (DOI: 10.1109/ACSAT.2013.65)
Uncontrolled Keywords:	Active S-box, LBlock lightweight block cipher, 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 > Department of Computer Science Kulliyyah of Information and Communication Technology > Department of Computer Science
Depositing User:	Professor Imad Taha
Date Deposited:	08 Aug 2014 09:40
Last Modified:	19 Sep 2017 09:54
URI:	http://irep.iium.edu.my/id/eprint/37414

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