Re: [IPsec] WESP - Roadmap Ahead

Stephen Kent <kent@bbn.com> Wed, 11 November 2009 20:56 UTC

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Date: Wed, 11 Nov 2009 15:56:39 -0500
To: Jack Kohn <kohn.jack@gmail.com>
From: Stephen Kent <kent@bbn.com>
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Subject: Re: [IPsec] WESP - Roadmap Ahead
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Jack,

I would have no problem deprecating AH in the context of the IPsec 
architecture document, if others agree. It is less efficient  than 
ESP-NULL. However, other WGs have cited AH as the IPsec protocol of 
choice for integrity/authentication in their environments, so there 
will be a need to coordinate with them, and it may be unacceptable to 
kill AH as a standalone protocol for them.

I am not comfortable with the notion of ESP with WESP.  WESP adds 
more per-packet overhead than ESP, and some users are very sensitive 
to this aspect of IPsec use. Also, other WG rely on ESP and we would 
need to convince them that the packet inspection features of WESP 
merit making changes to their standards, which might be a tough sell. 
So, I cannot support this suggestion.

Steve