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with SMTP id MAA25564; Thu, 15 Jul 1999 12:59:01 -0500 (CDT)
Posted-Date: Thu, 15 Jul 1999 12:59:01 -0500 (CDT)
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Date: Thu, 15 Jul 1999 12:51:54 -0500
To: jerome@psti.com, ipsec@lists.tislabs.com
From: Bruce Schneier <schneier@counterpane.com>
Subject: Re: your mail
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 <199907151404.KAA11142@lists.tislabs.com>
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At 12:05 PM 7/15/99 -0400, jerome@psti.com wrote:
>On Thu, Jul 15, 1999 at 10:04:12AM -0400, Bruce Schneier wrote:
>[snip]
>
>> I think giving users a choice is a bad idea, and
>> that one strong cipher is better than two strong ciphers.
>
>if ipsec is deployed with 2 ciphers A and B, and a major weakness is found
>out in A, you still have the choice to use B.
>if A was the only cypher, you have to upgrade all the software/hardware.

There's not going to be a major weakness found in triple-DES.  That seems like
a pretty far-fetched thing to worry about.  I would spend my effort worrying
about the implementation security of IPSec.

Bruce
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