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Re: is breaking RSA at least as hard as factoring or vice-versa?

daemon@ATHENA.MIT.EDU (Sean W. Smith)
Mon Apr 3 11:44:26 2006

X-Original-To: cryptography@metzdowd.com
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In-Reply-To: <p0623094bc0560111e39f@[10.0.1.28]>
Cc: "Travis H." <solinym@gmail.com>,
	Cryptography <cryptography@metzdowd.com>
From: "Sean W. Smith" <sws@cs.dartmouth.edu>
Date: Mon, 3 Apr 2006 06:36:30 -0400
To: Greg Rose <ggr@qualcomm.com>

Dan Boneh had an interesting paper on this topic a few years back  
giving some evidence that that "breaking RSA" might in fact be easier  
than factoring.    However, it defines "breaking RSA" as being able  
to DO the private-key operation, not as knowing the private key  
(because the latter lets you factor).

Boneh and Venkatesan. "Breaking RSA may not be equivalent to  
factoring." Eurocrypt '98. Springer-Verlag LNCS 1233. 1998.

--Sean

Sean W. Smith, Ph.D.  sws@cs.dartmouth.edu  www.cs.dartmouth.edu/~sws/
Department of Computer Science, Dartmouth College, Hanover NH USA




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