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Re: [IPsec] Working Group Last Call: draft-ietf-ipsecme-aes-ctr-ikev2-02.txt

From: Paul Hoffman <paul.hoffman_at_nospam>
Date: Thu Sep 17 2009 - 14:44:11 GMT
To: Tero Kivinen <kivinen@iki.fi>

At 2:23 PM +0300 9/17/09, Tero Kivinen wrote:
>When reading the roadmap I noticed that camellia-ctr is also not
>defined for IKEv2 SAs, so I was wondering if the text in this document
>could be made generic enough so any counter mode cipher could be used.

It is not clear to me that future counter modes will fit today's generic definition. I don't think it is bad to require a specific definition for each application of counter mode.

>Other option is of course to include text to ikev2bis which specifies
>how to use counter mode ciphers when protecting IKEv2 SAs.

This seems like overkill and possibly limiting to future applications of counter mode.

--Paul Hoffman, Director
--VPN Consortium

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