Post-processing Algorithms for Performance Improvement of Substitution Boxes Based on Chaotic System

摘要: Substitution boxes are an important cryptographic primitive. Design techniques based on mathematical transformations, a design technique of these primitives, have played particularly role in the block encryption algorithm known as Advanced Encryption Standard (AES). Because AES substitution box structure has best properties. However, various weaknesses arise when implementation attacks considered. Although properties structures random selection worse than structure, they more successful to prevent attacks. The aim this study is investigate performance improvement algorithms selection. In study, it been shown that improvements can be achieved with proposed post-processing algorithms. These results thought make significant contributions future, especially countermeasure for prevention