New vulnerabilities of RSA modulus type N = p²q

This paper proposes new attacks on RSA modulus of type N = p²q. Given k RSA moduli Nі = p²iqi for k ≥ 2 and i = 1, ..., k, the attack works when k RSA public keys (Ni, ei) are such that there exist k relations of the shape eix - Niyi = zi – (ap²i + bq²i)yi or of the shape eixi −Niy = zi −(ap²i + bq²...

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Bibliographic Details
Main Authors: Nek Abd Rahman, Normahirah, Kamel Ariffin, Muhammad Rezal
Format: Conference or Workshop Item
Language:English
Published: Institute for Mathematical Research, Universiti Putra Malaysia 2016
Online Access:http://psasir.upm.edu.my/id/eprint/66511/1/Cryptology2016-4.pdf
http://psasir.upm.edu.my/id/eprint/66511/
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Summary:This paper proposes new attacks on RSA modulus of type N = p²q. Given k RSA moduli Nі = p²iqi for k ≥ 2 and i = 1, ..., k, the attack works when k RSA public keys (Ni, ei) are such that there exist k relations of the shape eix - Niyi = zi – (ap²i + bq²i)yi or of the shape eixi −Niy = zi −(ap²i + bq²i)y where the parameters x, xi, y, yi and zi are suitably small in terms of the prime factors of the moduli. The proposed attacks utilizing the LLL algorithm enables one to factor the k RSA moduli Ni simultaneously.