S-Boxes with Exceptional Cryptographic and Implementation Properties

• Applicants: Dr. Christof Beierle; Professor Dr. Gregor Leander
• Subject Area: Security and Dependability, Operating-, Communication- and Distributed Systems ; Theoretical Computer Science
• Term: from 2018 to 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 411879806

Many fundamental questions in the design and the analysis of symmetric ciphers are still open. In this project, we plan to tackle some of those questions. In particular, we aim for finding new vectorial Boolean functions (aka S-boxes) with both exceptional cryptographic and exceptional implementation properties. While large parts of our project is of theoretical nature, we expect that our results significantly influence the design of symmetric primitives in the future. The main point of consideration is self equivalence as the unifying property of all cryptographically strong S-boxes.

• DFG Programme: Research Grants
• International Connection: France
• Cooperation Partners: Professorin Dr. Anne Canteaut; Professor Dr. Philippe Langevin