From: Martin Willi <martin@strongswan.org>
To: "Adrian-Ken Rüegsegger" <rueegsegger@swiss-it.ch>
Cc: herbert@gondor.apana.org.au, davem@davemloft.net,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2.6.26rc5] xfrm: SHA-256/384/512 HMAC support for IPsec
Date: Thu, 05 Jun 2008 16:45:01 +0200 [thread overview]
Message-ID: <1212677101.6339.75.camel@martin> (raw)
In-Reply-To: <4847F310.7020207@swiss-it.ch>
> You could register a new SADB algorithm id in pfkeyv2.h and add a new
> entry to the aalg_list analogous to how GCM is doing that in the aead_list.
>
> Adrian
We could do that, but SADB_X_AALG_SHA2_256HMAC (5) actually refers to
128 bit truncation. 96 bit truncation is a leftover of
draft-ietf-ipsec-ciph-sha-256-00 and has been replaced by 128 bit
truncation in draft-ietf-ipsec-ciph-sha-256-01.
draft-kelly-ipsec-ciph-sha2 and the resulting RFC4868 define 128 bit
truncation for SADB_X_AALG_SHA2_256HMAC (5), so 96 bit truncation is
really obsolete. We could define a new PF_KEY algorithm for 96 bit
truncation, but it is not really usable as it is not standardized.
Martin
next prev parent reply other threads:[~2008-06-05 14:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-05 13:06 [PATCH 2.6.26rc5] xfrm: SHA-256/384/512 HMAC support for IPsec Martin Willi
2008-06-05 14:07 ` Adrian-Ken Rüegsegger
2008-06-05 14:45 ` Martin Willi [this message]
2008-06-05 14:58 ` Adrian-Ken Rüegsegger
2008-06-06 7:53 ` Herbert Xu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1212677101.6339.75.camel@martin \
--to=martin@strongswan.org \
--cc=davem@davemloft.net \
--cc=herbert@gondor.apana.org.au \
--cc=linux-kernel@vger.kernel.org \
--cc=rueegsegger@swiss-it.ch \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.