🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: sci.crypt
Article #3328

Re: Security of RSA and factoring

#3328
From: stewart
Date: Fri, 16 Jan 1987 15:31
22 lines
1322 bytes
> R, S & A consider three approaches to breaking RSA:

> 2) Somehow find d without factoring n.
> 	Once you know d, you can calculate e*d-1 which is a multiple of
> 	T(n).  It has been shown that n can be factored using any
> 	multiple of T(n).
> 
> 	Thus, if you can find d, you can factor n.  Therefore, either
> 	d is impractical to compute, or R, S & A have stumbled on an
> 	easy way to factor large primes.

This shows that you could factor a number IF you find d AND are given e.
Remember that e is computed from d and the prime factors of n.  This
does not translate into a general scheme for factoring.

Bob Stewart
ihnp4!ihlpf!stewart

[Ignore this.  Just wasting space
 and net capacity so that postnews
 will let me post this article.
]
Technical Details
Message-ID: <948@ihlpf.UUCP>
Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!cbatt!ihnp4!ihlpf!stewart
References: <9041@duke.duke.UUCP> <4205@columbia.UUCP> <9054@duke.duke.UUCP> <16847@ucbvax.BERKELEY.EDU> <11482@sun.uucp>

Show Full Headers
Complete Article Headers
Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!cbatt!ihnp4!ihlpf!stewart
From: stewart@ihlpf.UUCP
Newsgroups: sci.crypt
Subject: Re: Security of RSA and factoring
Message-ID: <948@ihlpf.UUCP>
Date: Fri, 16-Jan-87 10:31:13 EST
Article-I.D.: ihlpf.948
Posted: Fri Jan 16 10:31:13 1987
Date-Received: Sat, 17-Jan-87 05:24:43 EST
References: <9041@duke.duke.UUCP> <4205@columbia.UUCP> <9054@duke.duke.UUCP> <16847@ucbvax.BERKELEY.EDU> <11482@sun.uucp>
Organization: AT&T Bell Labs, Naperville, IL
Lines: 22