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Title:
Another Lattice Attack Against an RSA-like Cryptosystem
Authors: George Teseleanu
Abstract:Let N=pq be the product of two balanced prime numbers p and q. In 2015, Roman’kov introduced an interesting RSA-like cryptosystem that, unlike the classical RSA key equation ed - k (p-1)(q-1) = 1, uses the key equation ed - k r = 1, where r | p-1 and is a large prime number. In this paper, we study if small private key attacks based on lattices can be applied to Roman’kov’s cryptosystem. More precisely, we argue that such attacks do not appear to be applicable to this scheme.
ePrint: https://eprint.iacr.org/2024/1861
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