[Resource Topic] 2007/205: A kilobit special number field sieve factorization

Welcome to the resource topic for 2007/205

Title:
A kilobit special number field sieve factorization

Authors: Kazumaro Aoki, Jens Franke, Thorsten Kleinjung, Arjen Lenstra, Dag Arne Osvik

Abstract:

We describe how we reached a new factoring milestone by completing the first special number field sieve factorization of a number having more than 1024 bits, namely the Mersenne number 2^{1039}-1. Although this factorization is orders of magnitude `easier’ than a factorization of a 1024-bit RSA modulus is believed to be, the methods we used to obtain our result shed new light on the feasibility of the latter computation.

ePrint: https://eprint.iacr.org/2007/205

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