Boosting differential-linear cryptanalysis of ChaCha7 with MILP

• المؤلفون الرئيسيون: Bellini, Emanuele, Gerault, David, Grados, Juan, Makarim, Rusydi H., Peyrin, Thomas
• مؤلفون آخرون: School of Physical and Mathematical Sciences
• التنسيق: مقال
• اللغة: English
• منشور في: 2023
• الموضوعات: Science::Mathematics; Cryptanalysis; Differential-Linear Attack
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/171650
• المؤسسة: Nanyang Technological University

In this paper, we present an improved differential-linear cryptanalysis of the ChaCha stream cipher. Our main contributions are new differential-linear distinguishers that we were able to build thanks to the following improvements: a) we considered a larger search space, including 2-bit differences...