Abstract
The substitution box (S-box) is an important component in block encryption algorithms. In this Letter, the problem of constructing S-box is transformed to a Traveling Salesman Problem and a method for designing S-box based on chaos and genetic algorithm is proposed. Since the proposed method makes full use of the traits of chaotic map and evolution process, stronger S-box is obtained. The results of performance test show that the presented S-box has good cryptographic properties, which justify that the proposed algorithm is effective in generating strong S-boxes. © 2012 Elsevier B.V. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 827-833 |
| Journal | Physics Letters, Section A: General, Atomic and Solid State Physics |
| Volume | 376 |
| Issue number | 6-7 |
| DOIs | |
| Publication status | Published - 30 Jan 2012 |
Research Keywords
- Chaos
- Chaos-based cipher
- Genetic algorithm
- S-box
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