Fixed Points of Rational Functions Satisfying the Carlitz Property
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Recent research within the field of cryptography has suggested that S-boxes should be chosen to contain few fixed points, motivating analysis of the fixed points of permutations. This thesis presents a novel means of obtaining fixed points for all functions satisfying a property put forth by L. Carlitz. We introduce an algorithm which cyclically generates fixed points for three such classes of functions, the most renowned of which are Rédei rational functions. Further, we provide an explicit expression for the fixed points of all Rédei functions over Fq.
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Copyright © 2018 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
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- 2018
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chubb-fixedpointsofrationalfunctionssatisfyingthe.pdf | 2023-05-05 | Public | Download |