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Construction of highly nonlinear resilient S-boxes with given degree |
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| Authors: | Shaojing Fu Kanta Matsuura Chao Li Longjiang Qu |
| Institution: | 1. College of Computer, National University of Defense Technology, Changsha, 410073, People’s Republic of China 2. Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan 3. College of Science, National University of Defense Technology, Changsha, 410073, People’s Republic of China |
| Abstract: | We provide two new construction methods for nonlinear resilient S-boxes with given degree. The first method is based on the use of linear error correcting codes together with highly nonlinear S-boxes. Given a u, m, t + 1] linear code where u = n?d?1, d > m, we show that it is possible to construct (n, m, t, d) resilient S-boxes which have currently best known nonlinearity. Our second construction provides highly nonlinear (n, m, t, d) resilient S-boxes which do not have linear structure, then an improved version of this construction is given. |
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