[145671] in cryptography@c2.net mail archive
Re: 2048-bit RSA keys
daemon@ATHENA.MIT.EDU (Matt Crawford)
Mon Aug 16 16:53:33 2010
Date: Mon, 16 Aug 2010 15:10:43 -0500
From: Matt Crawford <crawdad@fnal.gov>
In-reply-to: <4C6895D3.2010207@partow.net>
To: Arash Partow <arash@partow.net>
Cc: cryptography@metzdowd.com
On Aug 15, 2010, at 8:35 PM, Arash Partow wrote:
> Just out of curiosity, assuming the optimal use of today's best of breed factoring algorithms - will there be enough energy in our solar system to factorize a 2048-bit RSA integer?
Computation can be performed with arbitrarily small energy expenditure or entropy increase.
http://en.wikipedia.org/wiki/Reversible_computing
Not by the architectures we use, of course.
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