Title
A new attack on RSA and Demytko’s elliptic curve cryptosystem
Abstract
Let N = p q be an RSA modulus and e be a public exponent. Numerous attacks on RSA exploit the arithmetical properties of the key equation ed - k (p - 1)(q - 1) = 1. In this paper, we study the more general equation eu - (p - s)(p - r)v = w. We show that when the unknown integers u, v, w, r and s are suitably small and p - s or p - s is factorable using the Elliptic Curve Method for factorization ECM, then one can break the RSA system. As an application, we propose an attack on Demytko's elliptic curve cryptosystem. Our method is based on Coppersmith's technique for solving multivariate polynomial modular equations.
Year
DOI
Venue
2019
10.1080/09720529.2019.1587827
JOURNAL OF DISCRETE MATHEMATICAL SCIENCES & CRYPTOGRAPHY
Keywords
DocType
Volume
RSA,Cryptanalysis,Coppersmith's method,Elliptic curve method,Demytko's scheme
Journal
22
Issue
ISSN
Citations 
3
0972-0529
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Abderrahmane Nitaj17215.00
Emmanuel Fouotsa200.34