Construction of an S-Box Using Suppersingular Elliptic Curve over Finite Field
Iqrar Ali Pali, Iqrar Ali Pali · Journal of Hunan University Natural Sciences · 2023
This research aims to develop an S-box using elliptic curve cryptography (ECC) that provides higher security than other cryptographic schemes with equivalent key size. In this paper, a supersingular elliptic curve has been taken of characteristic more than three. The generated S-box depends on the values of a and b used in the supersingular elliptic curve. The robustness of the recently constructed S-box is thoroughly evaluated against prevalent attacks, including linear, differential, and algebraic attacks, through an analysis of its nonlinearity, linear approximation, differential branch number, and other established properties. The achieved findings are additionally contrasted with some well-known S-boxes. Keywords: finite fields, supersingular elliptic curves, group law, rational points, substitution boxes. https://doi.org/10.55463/issn.1674-2974.50.7.5