Re: [babel] [Babel-users] rather than ripemd160...

David Schinazi <dschinazi.ietf@gmail.com> Tue, 27 November 2018 21:43 UTC

Return-Path: <dschinazi.ietf@gmail.com>
X-Original-To: babel@ietfa.amsl.com
Delivered-To: babel@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2D38C12D7F8 for <babel@ietfa.amsl.com>; Tue, 27 Nov 2018 13:43:12 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.999
X-Spam-Level:
X-Spam-Status: No, score=-1.999 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.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 AtSNgChv5gIp for <babel@ietfa.amsl.com>; Tue, 27 Nov 2018 13:43:10 -0800 (PST)
Received: from mail-pl1-x634.google.com (mail-pl1-x634.google.com [IPv6:2607:f8b0:4864:20::634]) (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 900C612D4F0 for <babel@ietf.org>; Tue, 27 Nov 2018 13:43:06 -0800 (PST)
Received: by mail-pl1-x634.google.com with SMTP id u6so16267386plm.8 for <babel@ietf.org>; Tue, 27 Nov 2018 13:43:06 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=WpWH5/ERiSiiC1ER5kVdwM4YSsO1HVjHhCDZNdaiyEw=; b=ocKJAB0aNpmv/iSYYNE6J8sajnATp3y60R4HNy7YV1/EL6aNNqjfZ1Rqensa81u24M lPCvmdaDY54zFGxXAxRio+CaxWHM69fao1Q0NGh9jsjCCrPF1st93lvpET7G/SoXYnFE haLwsXJqJRwMVwga6SFXwm0J/+doG2TXzUFNe2Wvbjr7VDnSl2OGgK6dtp3VsgxCmuOR B88PgjgSLVnIdZi8ZT5Y+HfGlDqh9NPqCsPBfSi4YEV68HCU/w42XMeGfK9brmK4VYTi 7nQSzVC366y+fk93BQQ9SxvICwN8NsQy6re8N2+uVoDw4q2PAIAcYn0IqCMcMkjBBM0s GH0Q==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=WpWH5/ERiSiiC1ER5kVdwM4YSsO1HVjHhCDZNdaiyEw=; b=r5vu4982ITNRgKxg60jJ01SdazJGG0F7zbAJ8773WdNaWoAnat979WSsns+XMxGw9C 06tomJNrrduwlnyQMVQGjXcxmADZBH5gPMDike/Mjx+nDwNeI17uqIasK/lsgWIRpHAt aC2vQCjpGvmctD1B2YPMOy1D6l+zA3XMOxiLLu+tmQKkB5q2f6aKrec5MFC6x7CkFVKQ 3dAlc60VQxI1XTXB/Uet7L6r8RJeB8mnNQk8pHvIOLvIw3yHdL/Bqh28haKZ6ahQ7zxT wcy0jZnGk5oLmuqlSceagTrodQdzJU99PKKlnrk9Q9y+Vf1pAJwHIEqzZZFfubtkD2wV OFkQ==
X-Gm-Message-State: AA+aEWaJrmrwP5l9+PkmRR8hVLpp4qnpEaHDVz2IGUAelKJFK6yJKnue RYSUqvpHMGE6GgLrmn2CoMa3CWl7nPDTetMnzFEETg==
X-Google-Smtp-Source: AFSGD/UYoN6Q/sC7dKOaA0hrbOlvxBI+4ttNhfQa83/Udml4JEOqsJ1iGowUhdAT9+pGr7cKKXtgl0zykW+BtV2/nH0=
X-Received: by 2002:a17:902:aa0a:: with SMTP id be10mr33653302plb.266.1543354986108; Tue, 27 Nov 2018 13:43:06 -0800 (PST)
MIME-Version: 1.0
References: <CAA93jw5fHRm21yEJsabiiOF1ZP7Zh3M_gEgRo0imBOpRGhf0qA@mail.gmail.com> <87in0koun6.wl-jch@irif.fr> <87in0kx98o.fsf@toke.dk> <CAA93jw5gaYgyUX-ABX156_TnFX25Sy5SLyuRgd28fMLfRW4UHA@mail.gmail.com> <871s78x7z0.fsf@toke.dk> <2D09D61DDFA73D4C884805CC7865E6114DF44154@GAALPA1MSGUSRBF.ITServices.sbc.com> <87pnurwo5e.fsf@toke.dk>
In-Reply-To: <87pnurwo5e.fsf@toke.dk>
From: David Schinazi <dschinazi.ietf@gmail.com>
Date: Tue, 27 Nov 2018 13:42:54 -0800
Message-ID: <CAPDSy+5QDu_kW-f=JWO1cPJJnDwDNpVwxwVC9SxfcE5+EOMpRg@mail.gmail.com>
To: Toke Høiland-Jørgensen <toke@toke.dk>
Cc: Barbara Stark <bs7652@att.com>, Dave Taht <dave.taht@gmail.com>, babel-users@lists.alioth.debian.org, babel@ietf.org
Content-Type: multipart/alternative; boundary="000000000000b59c08057bac557d"
Archived-At: <https://mailarchive.ietf.org/arch/msg/babel/_qLmBVsjVNSMpkOFNYe0xmJ5I28>
Subject: Re: [babel] [Babel-users] rather than ripemd160...
X-BeenThere: babel@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "A list for discussion of the Babel Routing Protocol." <babel.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/babel>, <mailto:babel-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/babel/>
List-Post: <mailto:babel@ietf.org>
List-Help: <mailto:babel-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/babel>, <mailto:babel-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 27 Nov 2018 21:43:12 -0000

I feel strongly against making anything but SHA-256 mandatory to implement.
It will delay publication and not improve the interoperability story. That
said, I agree that the Blake2 family is a good fit here so it would be nice
to have bird and babeld support them - but they do not need to be in the
spec.

David

On Mon, Nov 26, 2018 at 12:59 PM Toke Høiland-Jørgensen <toke@toke.dk>
wrote:

> "STARK, BARBARA H" <bs7652@att.com> writes:
>
> > FYI. IETF policies re "downrefs" in standards track RFCs is described in
> > https://tools.ietf.org/html/rfc3967 (and updated by
> https://tools.ietf.org/html/rfc8067).
> > In short, it's not prohibited, but careful review is required.
> > Note RFC3967 Section 2 first bullet
> >
> >    There are a number of circumstances in which an IETF document may
> >    need to make a normative reference to a document at a lower maturity
> >    level, but such a reference conflicts with Section 4.2.4 of
> >    [RFC2026].  For example:
> >
> >    o  A standards track document may need to refer to a protocol or
> >       algorithm developed by an external body but modified, adapted, or
> >       profiled by an IETF informational RFC, for example, MD5 [RFC1321]
> >       and HMAC [RFC2104].  Note that this does not override the IETF's
> >       duty to see that the specification is indeed sufficiently clear to
> >       enable creation of interoperable implementations.
>
> Ah, so HMAC itself is already an informational RFC? Great, let's do
> blake2, then! :D
>
> -Toke
>
> _______________________________________________
> Babel-users mailing list
> Babel-users@alioth-lists.debian.net
> https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/babel-users