Improved security evaluation of SPN block ciphers and its applications in the single-key attack on SKINNY

• Main Authors: Zhang, Wenying, Cao, Meichun, Guo, Jian, Pasalic, Enes
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2020
• Subjects: Library and information science::Cryptography; SKINNY Competition; Integral Cryptanalysis
• Online Access: https://hdl.handle.net/10356/145135
• Institution: Nanyang Technological University

In this paper, a new method for evaluating the integral property, truncated and impossible differentials for substitution-permutation network (SPN) block ciphers is proposed. The main assumption is an explicit description/expression of the internal state words in terms of the plaintext (ciphertext)...