ETRI Journal
- Volume 30 Issue 1
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- Pages.170-172
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- 2008
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- 1225-6463(pISSN)
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- 2233-7326(eISSN)
Efficient and Simple Method for Designing Chaotic S-Boxes
- Asim, Muhammad (Department of Electrical & Electronic Engineering, Universiti Teknologi PETRONAS) ;
- Jeoti, Varun (Department of Electrical & Electronic Engineering, Universiti Teknologi PETRONAS)
- Received : 2007.09.05
- Published : 2008.02.28
Abstract
A substitution box (S-box) plays a central role in cryptographic algorithms. In this paper, an efficient method for designing S-boxes based on chaotic maps is proposed. The proposed method is based on the mixing property of piecewise linear chaotic maps. The S-box so constructed has very low differential and linear approximation probabilities. The proposed S-box is more secure against differential and linear cryptanalysis compared to recently proposed chaotic S-boxes.