Re: [secdir] SECDIR review of draft-ietf-ipsecme-rfc4307bis-15

Ben Laurie <benl@google.com> Thu, 19 January 2017 18:15 UTC

Return-Path: <benl@google.com>
X-Original-To: secdir@ietfa.amsl.com
Delivered-To: secdir@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id EFCD91294BE for <secdir@ietfa.amsl.com>; Thu, 19 Jan 2017 10:15:33 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -5.9
X-Spam-Level:
X-Spam-Status: No, score=-5.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RP_MATCHES_RCVD=-3.199, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=google.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 1NcXkvZxD1Z0 for <secdir@ietfa.amsl.com>; Thu, 19 Jan 2017 10:15:32 -0800 (PST)
Received: from mail-vk0-x232.google.com (mail-vk0-x232.google.com [IPv6:2607:f8b0:400c:c05::232]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 23266129499 for <secdir@ietf.org>; Thu, 19 Jan 2017 10:15:32 -0800 (PST)
Received: by mail-vk0-x232.google.com with SMTP id t8so36032294vke.3 for <secdir@ietf.org>; Thu, 19 Jan 2017 10:15:32 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=hYNLrpzLdbVav/ltHowsvsZnJXvooqjz3/MIKa8cNqE=; b=me4UlFspPIlvRYxh0Bbfm5CvQM1dqrez90aUkVmY3Tis5V/YbwzPXT2zOt+e1q9iFn L0IDlRbluLHoC/RhCgiTgpIQtbIpi/CMPuNnilbUESmtRZJqfW6EmJ/BJKn2HOTyW2u5 OUnQEHEuUREFHXJmyZErbQdS3VCXeymm22LivMY6r935RH23828zelf0xHh+vQfeyFVN RZqfiIysiiofahg6+tiWNwlPAUjk/Xe7y9HZO7fSzd/9nR97/rbJG+UW3j6Mak7O6REr dP2zP/wYX3xEW9ooiqEmfqpZj8wo+KIGewDbe5KdNjBzNJ0HxJDZ99WL6E5cpXf3X9yO zfpg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=hYNLrpzLdbVav/ltHowsvsZnJXvooqjz3/MIKa8cNqE=; b=Vv/jlcDjthV3Ehco35EdtV4ElVHNE8aymiclyjpgzvMGp/N4rcq3UXwCPz61QGZ1Pb VIbIgmFHEaofPjBxair3MBR0XX3806EqVciVEq6EtpJ97fX0wke1P03g14+sGZTuyrXa s2WL2KWdQjUlkFxpuaw3AEQzhz88xehgoWCphgb8EjRa+mK9a5y+ZMBfspS1aThhcJ38 6xcweF0oXj6bqtGaFh1k5bmZEs/BAk25jM+MbpgC/eo58lJDI4MjDi8fXu2H91poGhdB R89Mz+YxnJ5PVPsGdLm5+s3s3mRqWIvW4zKeIihz1MXjBTbLEMDh3JB1ASw5jzd4LmDf EYQw==
X-Gm-Message-State: AIkVDXJMqP18wl9WWpbSr5KLsw/IT8RTBvlv149WwDhV9ORaFmWdKmy8SaW5tYIRdE2q+AYgRf3PGoAgF7PKpAmJ
X-Received: by 10.31.50.84 with SMTP id y81mr4180415vky.103.1484849730819; Thu, 19 Jan 2017 10:15:30 -0800 (PST)
MIME-Version: 1.0
Received: by 10.31.130.199 with HTTP; Thu, 19 Jan 2017 10:15:30 -0800 (PST)
In-Reply-To: <2E57FFB8-20ED-410D-A5E4-21ED72270BA8@gmail.com>
References: <CAMm+Lwi7EnH0tMPS5+CX_-xZMKEr08vtN0207biWxMik4V-XZw@mail.gmail.com> <CABrd9SSCB6FszYp=PkGY6EnjYzjBKeEDbaqs4_Yb5R1eMmy6Sw@mail.gmail.com> <2E57FFB8-20ED-410D-A5E4-21ED72270BA8@gmail.com>
From: Ben Laurie <benl@google.com>
Date: Thu, 19 Jan 2017 18:15:30 +0000
Message-ID: <CABrd9STKAfWMkeuqSrzhMj28gKEtZVgK2CLZhkkh5OXqxhLXLw@mail.gmail.com>
To: Yoav Nir <ynir.ietf@gmail.com>
Content-Type: text/plain; charset="UTF-8"
Archived-At: <https://mailarchive.ietf.org/arch/msg/secdir/oi4K6qKvflMi_y_dyVbFa98cixg>
Cc: Phillip Hallam-Baker <phill@hallambaker.com>, draft-ietf-ipsecme-rfc4307bis.all@ietf.org, "secdir@ietf.org" <secdir@ietf.org>
Subject: Re: [secdir] SECDIR review of draft-ietf-ipsecme-rfc4307bis-15
X-BeenThere: secdir@ietf.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: Security Area Directorate <secdir.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/secdir>, <mailto:secdir-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/secdir/>
List-Post: <mailto:secdir@ietf.org>
List-Help: <mailto:secdir-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/secdir>, <mailto:secdir-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 19 Jan 2017 18:15:34 -0000

On 18 January 2017 at 15:03, Yoav Nir <ynir.ietf@gmail.com> wrote:
>
> On 18 Jan 2017, at 14:42, Ben Laurie <benl@google.com> wrote:
>
> Aren't we supposed to be deprecating 5114 primes?
>
>
> Sure:
>
>    Group 22, 23 and 24 are MODP Groups with Prime Order Subgroups thater
>    are not safe-primes.  The seeds for these groups have not been
>    publicly released, resulting in reduced trust in these groups.  These
>    groups were proposed as alternatives for group 2 and 14 but never saw
>    wide deployment.  It has been shown that Group 22 with 1024-bit MODP
>    is too weak and academia have the resources to generate malicious
>    values at this size.  This has resulted in Group 22 to be demoted to
>    MUST NOT.  Group 23 and 24 have been demoted to SHOULD NOT and are
>    expected to be further downgraded in the near future to MUST NOT.
>
>
> This is what deprecation looks like

Apologies. I did not read carefully enough. I blame jetlag. :-)

>
> Yoav
>
>
>
> On 18 January 2017 at 02:24, Phillip Hallam-Baker <phill@hallambaker.com>
> wrote:
>
>
> I have reviewed this document as part of the security directorate's
> ongoing effort to review all IETF documents being processed by the
> IESG.  These comments were written primarily for the benefit of the
> security area directors.  Document editors and WG chairs should treat
> these comments just like any other last call comments.
>
> STATUS: Ready with one minor typo.
>
>
> My personal taste would be to reduce the number of algorithms by half. But
> that is not practical given the history so this is the best we can do in the
> circumstances.
>
>
>
> Typos
>
> Sec 3.4
>
>   Group 22, 23 and 24 are MODP Groups with Prime Order Subgroups thater
>   are not safe-primes.  The seeds for these groups have not been
>
>
> _______________________________________________
> secdir mailing list
> secdir@ietf.org
> https://www.ietf.org/mailman/listinfo/secdir
> wiki: http://tools.ietf.org/area/sec/trac/wiki/SecDirReview
>
>