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On the Families of Stable Multivariate Transformations of Large Order and Their Cryptographical Applications Cover

On the Families of Stable Multivariate Transformations of Large Order and Their Cryptographical Applications

By: Vasyl Ustimenko  
Open Access
|Mar 2018

Abstract

Families of stable cyclic groups of nonlinear polynomial transformations of affine spaces Kn over general commutative ring K of with n increasing order can be used in the key exchange protocols and El Gamal multivariate cryptosystems related to them. We suggest to use high degree of noncommutativity of affine Cremona group and modify multivariate El Gamal algorithm via conjugations of two polynomials of kind gk and g−1 given by key holder (Alice) or giving them as elements of different transformation groups. Recent results on the existence of families of stable transformations of prescribed degree and density and exponential order over finite fields can be used for the implementation of schemes as above with feasible computational complexity.

DOI: https://doi.org/10.1515/tmmp-2017-0021 | Journal eISSN: 1338-9750 | Journal ISSN: 12103195
Language: English
Page range: 107 - 117
Submitted on: Aug 13, 2017
Published on: Mar 23, 2018
Published by: Slovak Academy of Sciences, Mathematical Institute
In partnership with: Paradigm Publishing Services
Publication frequency: 3 issues per year

© 2018 Vasyl Ustimenko, published by Slovak Academy of Sciences, Mathematical Institute
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.