Abstract
Division property is a generalized integral property proposed by Todo in Eurocrypt 2015. Utilizing automated tools such as SAT and MILP, the complexity to search for integral distinguisher by division property was greatly reduced. Based on division property and automated tools, Derbez et al. obtained a 10-round integral distinguisher of RECTANGLE by considering the linear transformation of the input and output state bits of the cipher, which is one round longer than known integral distinguishers. In this paper, we further consider improved integral attack on block ciphers with Generalized Feistel Structure (GFS cipher) by considering the linear transformation of the S-boxes. Taking the 16-branch GFS cipher with 4-bit S-boxes as an example, using this improved method, we can increase the round of integral distinguishers by one round for many S-boxes. The result implies that ability to resist this improved integral attack should also be considered when designing corresponding GFS ciphers.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
