New attacks on RSA with modulus N = p2q using continued fractions

In this paper, we propose two new attacks on RSA with modulus N = p2q using continued fractions. Our first attack is based on the RSA key equation ed - φ(N)k = 1 where φ(N) = p(p - 1)(q - 1). Assuming that and , we show that can be recovered among the convergents of the continued fraction expansion...

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Main Authors: Asbullah, Muhammad Asyraf, Kamel Ariffin, Muhammad Rezal
Format: Conference or Workshop Item
Language:English
Published: IOP Publishing 2015
Online Access:http://psasir.upm.edu.my/id/eprint/43055/1/jpconf15_622_012019.pdf
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author Asbullah, Muhammad Asyraf
Kamel Ariffin, Muhammad Rezal
author_facet Asbullah, Muhammad Asyraf
Kamel Ariffin, Muhammad Rezal
author_sort Asbullah, Muhammad Asyraf
collection UPM
description In this paper, we propose two new attacks on RSA with modulus N = p2q using continued fractions. Our first attack is based on the RSA key equation ed - φ(N)k = 1 where φ(N) = p(p - 1)(q - 1). Assuming that and , we show that can be recovered among the convergents of the continued fraction expansion of . Our second attack is based on the equation eX - (N - (ap2 + bq2)) Y = Z where a,b are positive integers satisfying gcd(a,b) = 1, |ap2 - bq2| < N1/2 and ap2 + bq2 = N2/3+α with 0 < α < 1/3. Given the conditions , we show that one can factor N = p2q in polynomial time.
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spelling upm.eprints-430552016-05-17T09:19:23Z http://psasir.upm.edu.my/id/eprint/43055/ New attacks on RSA with modulus N = p2q using continued fractions Asbullah, Muhammad Asyraf Kamel Ariffin, Muhammad Rezal In this paper, we propose two new attacks on RSA with modulus N = p2q using continued fractions. Our first attack is based on the RSA key equation ed - φ(N)k = 1 where φ(N) = p(p - 1)(q - 1). Assuming that and , we show that can be recovered among the convergents of the continued fraction expansion of . Our second attack is based on the equation eX - (N - (ap2 + bq2)) Y = Z where a,b are positive integers satisfying gcd(a,b) = 1, |ap2 - bq2| < N1/2 and ap2 + bq2 = N2/3+α with 0 < α < 1/3. Given the conditions , we show that one can factor N = p2q in polynomial time. IOP Publishing 2015 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/43055/1/jpconf15_622_012019.pdf Asbullah, Muhammad Asyraf and Kamel Ariffin, Muhammad Rezal (2015) New attacks on RSA with modulus N = p2q using continued fractions. In: 3rd International Conference on Science & Engineering in Mathematics, Chemistry and Physics 2015 (ScieTech 2015), 31 Jan.-1 Feb. 2015, Bali, Indonesia. (pp. 1-9). 10.1088/1742-6596/622/1/012019
spellingShingle Asbullah, Muhammad Asyraf
Kamel Ariffin, Muhammad Rezal
New attacks on RSA with modulus N = p2q using continued fractions
title New attacks on RSA with modulus N = p2q using continued fractions
title_full New attacks on RSA with modulus N = p2q using continued fractions
title_fullStr New attacks on RSA with modulus N = p2q using continued fractions
title_full_unstemmed New attacks on RSA with modulus N = p2q using continued fractions
title_short New attacks on RSA with modulus N = p2q using continued fractions
title_sort new attacks on rsa with modulus n p2q using continued fractions
url http://psasir.upm.edu.my/id/eprint/43055/1/jpconf15_622_012019.pdf
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