Abstract
Binary signed digit representations (BSDR's) of integers have been studied since the 1950's. Their study was originally motivated by multiplication and division algorithms for integers and later by arithmetics on elliptic curves. Our paper is motivated by differential cryptanalysis of hash functions. We give an upper bound for the number of BSDR's of a given weight. Our result improves the upper bound on the number of BSDR's with minimal weight stated by Grabner and Heuberger in On the number of optimal base $2$ representations, Des. Codes Cryptogr. 40 (2006), 25--39, and introduce a new recursive upper bound for the number of BSDR's of any given weight.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Commentationes Mathematicae Universitatis Carolinae
Disclaimer: 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.