Re: cost for cracking 512 bit RSA?

Lewis McCarthy (lmccarth@cs.umass.edu)
Wed, 24 Feb 1999 14:40:09 -0500

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Thomas Roessler writes:
> Are there any current estimates on the cost and time it takes to
> factor a 512 bit RSA modulus?

You could try to extrapolate from the successful RSA-140 factoring
effort that concluded a few weeks ago (as pointed out here by Vin
McLellan):
<http://dbs.cwi.nl/cwwwi/owa/cwwwi.print_projects?ID=12>

-Lewis

-- 
"we have to yet really seriously debate the constitutional issues and 
whether or not we're willing to give up more freedom in order to have 
more security" -- U.S. Secretary of Defense William Cohen, 3 Feb 1999

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