A Random PRESENT Encryption Algorithm Based on Dynamic S-box

다국어 초록 (Multilingual Abstract)

S-box mainly plays the role of confusion in the encryption process as an important component. For the new encryption algorithm PRESENT proposed in 2007, S-box impacts on the security of the encryption algorithm directly. This paper briefly describes the process of PRESENT algorithm and proposes an improved S-box to solve the problem that the original PRESENT S-box has anti-fixed point. Then a random PRESENT encryption algorithm based on dynamic S-box is proposed. The dynamic multiple S-boxes technology is used to implement random PRESENT algorithm, to enhance the security of the cryptographic algorithm. Finally, the security analysis is done, and it suggests that dynamic S-box has a superior ability to resist differential attack and linear attack. By comparison to the diffusion rate of original PRESENT S-box, our dynamic S-box has better avalanche effect.

목차 (Table of Contents)

• Abstract
• 1. Introduction
• 2. Present
• 3. S-boxes Improvement Ideas
• 3.1 Improvement of the PRESENT S-box
• 3.2 Performance and Testing
• 4. Dynamic S-box Design
• 5. Dynamic S-box Analysis
• 5.1 Security Analysis
• 5.2 Test and Comparison of Cryptographic Properties
• 6. Conclusions
• Acknowledgements
• References