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To: Bill Manning <bmanning@isi.edu>
cc: Scott Rose <scottr@antd.nist.gov>, <dnssec@cafax.se>
From: Brian Wellington <Brian.Wellington@nominum.com>
Date: Wed, 18 Sep 2002 15:53:35 -0700 (PDT)
In-Reply-To: <200209171814.g8HIE3p03471@boreas.isi.edu>
Sender: owner-dnssec@cafax.se
Subject: Re: key length & fragmentation

On Tue, 17 Sep 2002, Bill Manning wrote:

> % Short answer - "no" I don't think operational issues should dictate key
> % lengths, but huge keys don't necessarily mean more secure either :)
> 
> 	See the point above. If IDS/firewalls toss UDP fragments,
> 	we loose.

Maybe the right answer is to tune the EDNS packet size to avoid UDP 
fragmentation?  4096 is bigger than most MTUs, but 1280 probably isn't, 
and should be enough for most common responses.

Brian


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