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Article #1932

Re: Demons and Ogres

#1932
From: John Eichler
Date: Thu, 19 Nov 1992 10:18
18 lines
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>In <1992Nov17.065526.15487@cactus.org> Terry Ritter states:

> Nonsense.  My proposal is that, given the ciphertext, the user
> would be required to make it plain.  This means that there would
> be a responsibility to log old *keys*, not conversations.

I must be missing something here.  I agree with what Terry says but if I
were to have a copy of a plaintext message to Terry and were to encrypt it
with his public key, just how would I go about making such plaintext plain
again WITHOUT his secret key even if I wanted to for any purpose.  In other
words, even if I maintained a copy of the original plaintext message, how
could I prove it was what was encrypted using, for example, PGP.

Is this a problem?  And if so, what is the best way to approach it.
---
 . SM 1.06 ----- . Email: john.eichler@grapevine.lrk.ar.us
                  
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Newsgroups: sci.crypt
Subject: Re: Demons and Ogres
Message-ID: <1455.517.uupcb@grapevine.lrk.ar.us>
From: john.eichler@grapevine.lrk.ar.us (John Eichler) 
Date: 19 Nov 92 10:18:00 GMT
Reply-To: john.eichler@grapevine.lrk.ar.us (John Eichler) 
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