Title
Factoring Rsa Moduli With Weak Prime Factors
Abstract
In this paper, we study the problem of factoring an RSA modulus N = pq in polynomial time, when p is a weak prime, that is, p can be expressed as ap = u(0) + M(1)u(1) + ... + M(k)u(k) for some k integers M-1, ... , M-k and k+2 suitably small parameters a, u(0), ... u(k). We further compute a lower bound for the set of weak moduli, that is, moduli made of at least one weak prime, in the interval [2(2n), 2(2(n+1))] and show that this number is much larger than the set of RSA prime factors satisfying Coppersmith's conditions, effectively extending the likelihood for factoring RSA moduli. We also prolong our findings to moduli composed of two weak primes.
Year
DOI
Venue
2015
10.1007/978-3-319-18681-8_29
CODES, CRYPTOLOGY, AND INFORMATION SECURITY, C2SI 2015
Keywords
DocType
Volume
RSA, Cryptanalysis, Factorization, LLL algorithm, Weak primes
Conference
9084
ISSN
Citations 
PageRank 
0302-9743
0
0.34
References 
Authors
5
2
Name
Order
Citations
PageRank
Abderrahmane Nitaj17215.00
tajjeeddine rachidi2134.70