Re: [Ntp] The NTP WG has placed draft-roughtime-aanchal in state "Call For Adoption By WG Issued"
Miroslav Lichvar <mlichvar@redhat.com> Wed, 11 September 2019 07:05 UTC
Return-Path: <mlichvar@redhat.com>
X-Original-To: ntp@ietfa.amsl.com
Delivered-To: ntp@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3AA2C12010C for <ntp@ietfa.amsl.com>; Wed, 11 Sep 2019 00:05:59 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.901
X-Spam-Level:
X-Spam-Status: No, score=-6.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
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 SdwVkJLJp7xn for <ntp@ietfa.amsl.com>; Wed, 11 Sep 2019 00:05:55 -0700 (PDT)
Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id CADBE1200B9 for <ntp@ietf.org>; Wed, 11 Sep 2019 00:05:55 -0700 (PDT)
Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 2F04A3082B45 for <ntp@ietf.org>; Wed, 11 Sep 2019 07:05:55 +0000 (UTC)
Received: from localhost (holly.tpb.lab.eng.brq.redhat.com [10.43.134.11]) by smtp.corp.redhat.com (Postfix) with ESMTPS id A8DEE5D6C8 for <ntp@ietf.org>; Wed, 11 Sep 2019 07:05:54 +0000 (UTC)
Date: Wed, 11 Sep 2019 09:05:49 +0200
From: Miroslav Lichvar <mlichvar@redhat.com>
To: ntp@ietf.org
Message-ID: <20190911070549.GF21704@localhost>
References: <watsonbladd@gmail.com> <CACsn0cktCkUjS-gUSWPhVoo+LWJD_MVeSaX2WqdcH0WNPyo2Tg@mail.gmail.com> <20190910063355.7082A40605C@ip-64-139-1-69.sjc.megapath.net> <OFA013F915.2AEF3333-ONC1258471.00380E6E-C1258471.003BA9C3@ptb.de> <dbf6adae-dd5a-2c86-7bc2-2829db0cbb83@dansarie.se>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Disposition: inline
In-Reply-To: <dbf6adae-dd5a-2c86-7bc2-2829db0cbb83@dansarie.se>
User-Agent: Mutt/1.12.0 (2019-05-25)
X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.45]); Wed, 11 Sep 2019 07:05:55 +0000 (UTC)
Archived-At: <https://mailarchive.ietf.org/arch/msg/ntp/3qNnyaazzLseW-jAe_xvrEClOGs>
Subject: Re: [Ntp] The NTP WG has placed draft-roughtime-aanchal in state "Call For Adoption By WG Issued"
X-BeenThere: ntp@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: <ntp.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ntp>, <mailto:ntp-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ntp/>
List-Post: <mailto:ntp@ietf.org>
List-Help: <mailto:ntp-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ntp>, <mailto:ntp-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 11 Sep 2019 07:05:59 -0000
On Tue, Sep 10, 2019 at 10:30:23PM +0200, Marcus Dansarie wrote: > As someone (Daniel or Watson?) said in today's interim meeting: the > purpose of Roughtime is generally not to set the system's clock, but for > other purposes such as certificate verification. It would be good to explain that in the draft. But I'm not sure how exactly that makes it different from NTP. An NTP client doesn't have to synchronize the system clock and it doesn't need any special privileges. There are of applications that don't trust the system clock and use NTP to verify the current time, even though it might seem like a terrible idea. If I understand it correctly, Roughtime could be specified as an NTP extension field, possibly as an extension to NTS. So, I think the document should explain why a new protocol using a different transport was needed. I guess one reason could be that Roughtime is easier to implement than NTP, especially in some specific frameworks. -- Miroslav Lichvar
- [Ntp] The NTP WG has placed draft-roughtime-aanch… IETF Secretariat
- Re: [Ntp] The NTP WG has placed draft-roughtime-a… Harlan Stenn
- Re: [Ntp] The NTP WG has placed draft-roughtime-a… Watson Ladd
- Re: [Ntp] The NTP WG has placed draft-roughtime-a… Hal Murray
- Re: [Ntp] The NTP WG has placed draft-roughtime-a… kristof.teichel
- Re: [Ntp] The NTP WG has placed draft-roughtime-a… Watson Ladd
- Re: [Ntp] The NTP WG has placed draft-roughtime-a… Marcus Dansarie
- Re: [Ntp] The NTP WG has placed draft-roughtime-a… Miroslav Lichvar
- Re: [Ntp] The NTP WG has placed draft-roughtime-a… Marcus Dansarie
- Re: [Ntp] The NTP WG has placed draft-roughtime-a… Watson Ladd
- Re: [Ntp] The NTP WG has placed draft-roughtime-a… Miroslav Lichvar
- Re: [Ntp] The NTP WG has placed draft-roughtime-a… Hal Murray
- Re: [Ntp] The NTP WG has placed draft-roughtime-a… Marcus Dansarie