On 2010-08-17 3:46 PM, Jonathan Katz wrote:
Many on the list may already know this, but I haven't seen it mentioned on this thread. The following paper (that will be presented at Crypto tomorrow!) is most relevant to this discussion: "Factorization of a 768-bit RSA modulus", http://eprint.iacr.org/2010/006
Which tells us that ordinary hobbyist and academic efforts will not be able to factor a 1024 bit RSA modulus by brute force until around 2015 or so - but dedicated hardware and so forth might be able to do it now.
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