netdev - Re: Does ESP support 64 bit sequence numbering for authentication hash ?

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Message-ID: <20090901120915.GA12646@secunet.com>
Date:	Tue, 1 Sep 2009 14:09:15 +0200
From:	Steffen Klassert <steffen.klassert@...unet.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	djenkins@...sta.com, linux-crypto@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: Does ESP support 64 bit sequence numbering for authentication
	hash ?

On Thu, Jan 15, 2009 at 04:56:44PM +1100, Herbert Xu wrote:
> Dean Jenkins <djenkins@...sta.com> wrote:
> > 
> > Does ESP support 64 bit sequence numbering for use with the
> > authentication HMAC ?
> 
> We don't support 64-bit sequence numbers yet.  If you look at
> struct xfrm_replay_state which is where we store the sequence
> number internally you'll find that it uses u32s.
> 
> Patches for 64-bit support are welcome of course.
> 

Is there actually anybody working on 64-bit sequence number support?
If not, I'd start to look at it.
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