| Gao Sheng (高胜),Ma Wenping,Zhuo Zepeng,Li Xiaoping.[J].高技术通讯(英文),2013,19(1):88~91 |
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| Effective method for the design of S-Boxes satisfying the strict avalanche criterion (SAC) |
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| DOI： |
| 中文关键词: |
| 英文关键词: cryptography, Boolean functions, Substitution boxes (S-boxes), strict avalanche criterion (SAC), concatenation, construction |
| 基金项目: |
| Author Name | Affiliation | | Gao Sheng (高胜) | | | Ma Wenping | | | Zhuo Zepeng | | | Li Xiaoping | |
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| 中文摘要: |
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| 英文摘要: |
| The strict avalanche criterion (SAC) is one of the most important cryptographic criteria for substitution boxes (S-boxes) used in many symmetric encryption systems. However, there are few constructive methods for S-boxes fulfilling the SAC until now. In this paper, to construct S-boxes satisfying the SAC directly, we generalize the concatenation techniques of Boolean functions to S-boxes. Using the idea of concatenating small variable S-boxes, we present a simple yet effective construction method of S-boxes satisfying the SAC. Finally, a simple example on how to construct SAC S-boxes with large input variables by small variables SAC S-boxes is given. |
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