From: Adam Shostack <adam@lighthouse.homeport.org>
Date: Wed, 31 Jan 1996 02:13:17 +0800
To: nsb@nsb.fv.com (Nathaniel Borenstein)
Subject: Re: Signature use and key trust (Was: Re: FV Demonstrates Fatal Flaw in Software Encryption of Credit)
In-Reply-To: <El3X_NGMc50e1Ir2Vs@nsb.fv.com>
Message-ID: <199601301551.KAA07294@homeport.org>
MIME-Version: 1.0
Content-Type: text


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Expire your keys annually.  You know about key lifetimes & expiry, and
in fact talk about them at length in your 'Experiences' paper.  So I
assert that this is a straw man.  The included key has an expiration
date on it.


Nathaniel Borenstein wrote:

| Right, absolutely.  But let's face it, by now you believe it's me
| anyway, or the real nsb@nsb.fv.com would have spoken up and argued with
| me.  On the other hand,  if I start routinely PGP-signing email, then
| the value of slowly brute-force cracking my private key goes way up.  If
| FV is successful, for example, you could spend a few years breaking my
| key, and then forge apparently-slanderous signed mail from me to you as
| part of a lawsuit.  This would be far more believable, in a court of
| law, if I routinely signed everything than if I didn't.  

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- -- 
"It is seldom that liberty of any kind is lost all at once."
					               -Hume


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