From ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Thu Feb 14 00:25:23 2013 Return-Path: X-Original-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Delivered-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1C21321F877B for ; Thu, 14 Feb 2013 00:25:23 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.598 X-Spam-Level: X-Spam-Status: No, score=-4.598 tagged_above=-999 required=5 tests=[AWL=2.000, BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id C0CHDcyN-se0 for ; Thu, 14 Feb 2013 00:25:21 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by ietfa.amsl.com (Postfix) with ESMTP id E46B521F877A for ; Thu, 14 Feb 2013 00:25:18 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by lists.ntp.org (Postfix) with ESMTP id 7014086DAA9 for ; Thu, 14 Feb 2013 08:25:18 +0000 (UTC) X-Original-To: ntpwg@lists.ntp.org Delivered-To: ntpwg@lists.ntp.org Received: from mail1.ntp.org (mail1.ntp.org [IPv6:2001:4f8:fff7:1::5]) by lists.ntp.org (Postfix) with ESMTP id 93DFD86D333 for ; Thu, 14 Feb 2013 08:23:56 +0000 (UTC) Received: from na3sys009aog116.obsmtp.com ([74.125.149.240]) by mail1.ntp.org with smtps (TLSv1:AES256-SHA:256) (Exim 4.77 (FreeBSD)) (envelope-from ) id 1U5u6k-000CnU-In for ntpwg@lists.ntp.org; Thu, 14 Feb 2013 08:23:56 +0000 Received: from SC-OWA01.marvell.com ([199.233.58.136]) (using TLSv1) by na3sys009aob116.postini.com ([74.125.148.12]) with SMTP ID DSNKURyfGQ3BFs3mbyscpNvRvsA9xpqhtjkP@postini.com; Thu, 14 Feb 2013 00:23:54 PST Received: from YK-HUB01.marvell.com (10.4.102.51) by sc-owa01.marvell.com (10.93.76.21) with Microsoft SMTP Server (TLS) id 8.3.213.0; Thu, 14 Feb 2013 00:22:43 -0800 Received: from IL-MB01.marvell.com ([10.4.102.53]) by YK-HUB01.marvell.com ([10.4.102.51]) with mapi; Thu, 14 Feb 2013 10:22:39 +0200 From: Tal Mizrahi To: "ntpwg@lists.ntp.org" Date: Thu, 14 Feb 2013 10:22:35 +0200 Thread-Topic: Updated draft-mizrahi-ntp-extension-field Thread-Index: Ac4Ki/n0X2yosKhKTceYbPgH5oox+Q== Message-ID: <74470498B659FA4687F0B0018C19A89C01A0F951AE22@IL-MB01.marvell.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US MIME-Version: 1.0 X-SA-Exim-Connect-IP: 74.125.149.240 X-SA-Exim-Rcpt-To: ntpwg@lists.ntp.org X-SA-Exim-Mail-From: talmi@marvell.com X-SA-Exim-Version: 4.2 X-SA-Exim-Scanned: Yes (on mail1.ntp.org) Subject: [ntpwg] Updated draft-mizrahi-ntp-extension-field X-BeenThere: ntpwg@lists.ntp.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: IETF Working Group for Network Time Protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============2645488440468157954==" Errors-To: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Sender: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org --===============2645488440468157954== Content-Language: en-US Content-Type: multipart/alternative; boundary="_000_74470498B659FA4687F0B0018C19A89C01A0F951AE22ILMB01marve_" --_000_74470498B659FA4687F0B0018C19A89C01A0F951AE22ILMB01marve_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi, Main changes compared to draft 00: - Danny Mayer has joined as a co-author. - We have separated the draft into two sections: o Section 3 describes how extension fields can be used in the absence of = a MAC according to the existing RFC 5905 and 5906. o Section 4 defines further extensions for using extension fields, and th= erefore updates RFC 5905. The intended status of the document was changed t= o 'Standards Track' accordingly. http://tools.ietf.org/html/draft-mizrahi-ntp-extension-field-01 Comments are welcome. Thanks, Tal. --_000_74470498B659FA4687F0B0018C19A89C01A0F951AE22ILMB01marve_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi,

 

Main chang= es compared to draft 00:

- =          Danny Mayer has joined as a co-author.

<= p class=3DMsoListParagraph style=3D'text-indent:-.25in;mso-list:l0 level1 l= fo1'>-       &nbs= p;  We have separated t= he draft into two sections:

o   Section 3 describes how e= xtension fields can be used in the absence of a MAC according to the existi= ng RFC 5905 and 5906.

o   Section 4 defines further extens= ions for using extension fields, and therefore updates RFC 5905. The intend= ed status of the document was changed to ‘Standards Track’ acco= rdingly.

 

http://tools.ietf.org/html/draft-mizrahi-ntp-extension-field-= 01

 

Comments are welcome.

&nbs= p;

Thanks,

Tal.

 

= --_000_74470498B659FA4687F0B0018C19A89C01A0F951AE22ILMB01marve_-- --===============2645488440468157954== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ ntpwg mailing list ntpwg@lists.ntp.org http://lists.ntp.org/listinfo/ntpwg --===============2645488440468157954==-- From ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Thu Feb 14 09:39:40 2013 Return-Path: X-Original-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Delivered-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B7AB821F8891 for ; Thu, 14 Feb 2013 09:39:40 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.598 X-Spam-Level: X-Spam-Status: No, score=-6.598 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DWFJVAeYTkX2 for ; Thu, 14 Feb 2013 09:39:39 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by ietfa.amsl.com (Postfix) with ESMTP id 4F77E21F8523 for ; Thu, 14 Feb 2013 09:39:39 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by lists.ntp.org (Postfix) with ESMTP id 101AE86DADE for ; Thu, 14 Feb 2013 17:39:38 +0000 (UTC) X-Original-To: ntpwg@lists.ntp.org Delivered-To: ntpwg@lists.ntp.org Received: from mail1.ntp.org (mail1.ntp.org [IPv6:2001:4f8:fff7:1::5]) by lists.ntp.org (Postfix) with ESMTP id B92CE86D73C for ; Thu, 14 Feb 2013 17:38:20 +0000 (UTC) Received: from mail5.symmetricom.com ([69.25.98.10]) by mail1.ntp.org with esmtp (Exim 4.77 (FreeBSD)) (envelope-from ) id 1U62lE-000K3O-Uf for ntpwg@lists.ntp.org; Thu, 14 Feb 2013 17:38:20 +0000 X-ASG-Debug-ID: 1360863490-05bdbc4d9e2e6ef0002-dac64w Received: from SJC-HUB-01.symmetricom.com ([192.168.10.171]) by mail5.symmetricom.com with ESMTP id dsgcwOKCnFHumOhl; Thu, 14 Feb 2013 09:38:11 -0800 (PST) X-Barracuda-Envelope-From: gdowd@symmetricom.com X-ASG-Whitelist: Client Received: from SJC-MBX-01.symmetricom.com ([169.254.1.122]) by SJC-HUB-01.symmetricom.com ([::1]) with mapi id 14.01.0289.001; Thu, 14 Feb 2013 09:38:11 -0800 From: Greg Dowd To: Tal Mizrahi , "ntpwg@lists.ntp.org" Thread-Topic: Updated draft-mizrahi-ntp-extension-field X-ASG-Orig-Subj: RE: Updated draft-mizrahi-ntp-extension-field Thread-Index: Ac4Ki/n0X2yosKhKTceYbPgH5oox+QATdVLQ Date: Thu, 14 Feb 2013 17:38:10 +0000 Message-ID: <26FBD265CD8D234EAF41115A180F92BB6EC61DFC@SJC-MBX-01.symmetricom.com> References: <74470498B659FA4687F0B0018C19A89C01A0F951AE22@IL-MB01.marvell.com> In-Reply-To: <74470498B659FA4687F0B0018C19A89C01A0F951AE22@IL-MB01.marvell.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [192.168.3.9] MIME-Version: 1.0 X-Barracuda-Connect: UNKNOWN[192.168.10.171] X-Barracuda-Start-Time: 1360863491 X-Barracuda-URL: http://192.168.10.96:80/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at symmetricom.com X-SA-Exim-Connect-IP: 69.25.98.10 X-SA-Exim-Rcpt-To: ntpwg@lists.ntp.org X-SA-Exim-Mail-From: btv1==75707cf5c53==gdowd@symmetricom.com X-SA-Exim-Version: 4.2 X-SA-Exim-Scanned: Yes (on mail1.ntp.org) Subject: Re: [ntpwg] Updated draft-mizrahi-ntp-extension-field X-BeenThere: ntpwg@lists.ntp.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: IETF Working Group for Network Time Protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============5322302369657545766==" Errors-To: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Sender: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org --===============5322302369657545766== Content-Language: en-US Content-Type: multipart/alternative; boundary="_000_26FBD265CD8D234EAF41115A180F92BB6EC61DFCSJCMBX01symmetr_" --_000_26FBD265CD8D234EAF41115A180F92BB6EC61DFCSJCMBX01symmetr_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Section 4.1 seems wrong. Ntp supports MD5 checksums on packets without ext= ensions. Ergo, the following statement is contradicting existing behavior. What was= the intent there? If there is no extension field present then a MAC MUST NOT be included in the packet. This is because there is no way to tell the difference between an unknown extension field and a MAC. Greg Dowd | Symmetricom(r), Inc. Staff Scientist 2300 Orchard Parkway, San Jose, CA 95131 Direct: 408.964.7643 gdowd@symmetricom.com | www.symmetricom.com= Symmetricom. Leading the world in precise time solutions. From: ntpwg-bounces+gdowd=3Dsymmetricom.com@lists.ntp.org [mailto:ntpwg-bou= nces+gdowd=3Dsymmetricom.com@lists.ntp.org] On Behalf Of Tal Mizrahi Sent: Thursday, February 14, 2013 12:23 AM To: ntpwg@lists.ntp.org Subject: [ntpwg] Updated draft-mizrahi-ntp-extension-field Hi, Main changes compared to draft 00: - Danny Mayer has joined as a co-author. - We have separated the draft into two sections: o Section 3 describes how extension fields can be used in the absence of = a MAC according to the existing RFC 5905 and 5906. o Section 4 defines further extensions for using extension fields, and th= erefore updates RFC 5905. The intended status of the document was changed t= o 'Standards Track' accordingly. http://tools.ietf.org/html/draft-mizrahi-ntp-extension-field-01 Comments are welcome. Thanks, Tal. --_000_26FBD265CD8D234EAF41115A180F92BB6EC61DFCSJCMBX01symmetr_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Section 4.1 seems wron= g.  Ntp supports MD5 checksums on packets without extensions. 

Ergo, the following st= atement is contradicting existing behavior.  What was the intent there= ?

 

If there is no exte= nsion field present then a MAC MUST NOT be

   includ= ed in the packet. This is because there is no way to tell the

   differ= ence between an unknown extension field and a MAC.

 

Greg Dowd | = Symmetricom®, = Inc.

Staff Scientist 
2300 Orchard Parkway, San Jose, CA 95131<= br> Direct:  408.964.7643 
= gdowd@symmetricom.com  |&nb= sp; www.symmetricom.com

Symmetricom.  Leading the wo= rld in precise time solutions.

 

From: ntpwg-bo= unces+gdowd=3Dsymmetricom.com@lists.ntp.org [mailto:ntpwg-bounces+g= dowd=3Dsymmetricom.com@lists.ntp.org] On Behalf Of Tal Mizrahi
Sent: Thursday, February 14, 2013 12:23 AM
To: ntpwg@lists.ntp.org
Subject: [ntpwg] Updated draft-mizrahi-ntp-extension-field

 

Hi,

 

Main changes compared to draft 00:

- &nbs= p;        Danny Mayer has joined as a co-author.

- &nbs= p;        We have separated the draft into two sections:

o   Section 3 describes how extension fields can be used in the absence = of a MAC according to the existing RFC 5905 and 5906.

o   Section 4 defines further extensions for using extension fields, and= therefore updates RFC 5905. The intended status of the document was change= d to ‘Standards Track’ accordingly.

 

http://tools.ietf.org/html/draft-mizrahi-ntp-extens= ion-field-01

 

Comments are welcome.

 

Thanks,

Tal.

 

--_000_26FBD265CD8D234EAF41115A180F92BB6EC61DFCSJCMBX01symmetr_-- --===============5322302369657545766== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ ntpwg mailing list ntpwg@lists.ntp.org http://lists.ntp.org/listinfo/ntpwg --===============5322302369657545766==-- From ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Fri Feb 15 03:55:11 2013 Return-Path: X-Original-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Delivered-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5FDEA21F8526 for ; Fri, 15 Feb 2013 03:55:11 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.897 X-Spam-Level: X-Spam-Status: No, score=-4.897 tagged_above=-999 required=5 tests=[AWL=1.702, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7yen1FY2Ki82 for ; Fri, 15 Feb 2013 03:55:10 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by ietfa.amsl.com (Postfix) with ESMTP id 53A6421F8519 for ; Fri, 15 Feb 2013 03:55:10 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by lists.ntp.org (Postfix) with ESMTP id 3517A86DAB8 for ; Fri, 15 Feb 2013 11:55:10 +0000 (UTC) X-Original-To: ntpwg@lists.ntp.org Delivered-To: ntpwg@lists.ntp.org Received: from mail1.ntp.org (mail1.ntp.org [IPv6:2001:4f8:fff7:1::5]) by lists.ntp.org (Postfix) with ESMTP id CA0AB86D33D; Fri, 15 Feb 2013 11:53:47 +0000 (UTC) Received: from mx1.berlin.ptb.de ([194.94.94.141]) by mail1.ntp.org with esmtp (Exim 4.77 (FreeBSD)) (envelope-from ) id 1U6JrN-00040Y-DN; Fri, 15 Feb 2013 11:53:47 +0000 Received: from MX1.Berlin.PTB.De (localhost [127.0.0.1]) by localhost (Postfix) with SMTP id 3ED9A1107A7; Fri, 15 Feb 2013 12:53:38 +0100 (CET) Received: from tulpe.berlin.ptb.de (r00031.berlin.ptb.de [172.30.200.131]) by MX1.Berlin.PTB.De (Postfix) with ESMTP id 27AC611079D; Fri, 15 Feb 2013 12:53:38 +0100 (CET) Received: from rose.bs.ptb.de ([141.25.85.201]) by tulpe.berlin.ptb.de (Lotus Domino Release 8.5.3FP3) with ESMTP id 2013021512533651-21273 ; Fri, 15 Feb 2013 12:53:36 +0100 In-Reply-To: <26FBD265CD8D234EAF41115A180F92BB6EC61DFC@SJC-MBX-01.symmetricom.com> References: <74470498B659FA4687F0B0018C19A89C01A0F951AE22@IL-MB01.marvell.com> <26FBD265CD8D234EAF41115A180F92BB6EC61DFC@SJC-MBX-01.symmetricom.com> To: "ntpwg@lists.ntp.org" , ntpwg-bounces+dieter.sibold=ptb.de@lists.ntp.org, Tal Mizrahi , Greg Dowd MIME-Version: 1.0 X-KeepSent: E4A59976:40F88D61-C1257B13:00399FC5; type=4; flags=0; name=$KeepSent X-Mailer: Lotus Notes Release 8.5.3FP3 November 15, 2012 Message-ID: From: dieter.sibold@ptb.de Date: Fri, 15 Feb 2013 12:53:35 +0100 X-MIMETrack: S/MIME Sign by Notes Client on Dieter 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X-BeenThere: ntpwg@lists.ntp.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: IETF Working Group for Network Time Protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============7018516025842985963==" Errors-To: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Sender: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org This is an S/MIME signed message. --===============7018516025842985963== Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary=-------z8351_boundary_sign This is an S/MIME signed message. ---------z8351_boundary_sign Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: base64 SSBoYXZlIHRoZSBzYW1lIHF1ZXN0aW9uIGFzIEdyZWcuIEl0IHNlZW1zIHRoYXQgdGhpcyBzZWN0 aW9uIHdvdWxkIGRpc2FibGUgDQp0aGUgc3ltbWV0cmljIGF1dGhlbnRpY2F0aW9uIG1lY2hhbmlz bS4gRnJvbSB0aGUgcG9pbnQgb2YgdmlldyBvZiBhbiBOVFAgDQpzZXJ2aWNlIHByb3ZpZGVyIHRo 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tests=[AWL=0.001, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id r059wjWWxFjY for ; Fri, 15 Feb 2013 09:18:38 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by ietfa.amsl.com (Postfix) with ESMTP id 5DA2B21F856E for ; Fri, 15 Feb 2013 09:18:38 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by lists.ntp.org (Postfix) with ESMTP id 050DE86DAB4 for ; Fri, 15 Feb 2013 17:18:33 +0000 (UTC) X-Original-To: ntpwg@lists.ntp.org Delivered-To: ntpwg@lists.ntp.org Received: from mail1.ntp.org (mail1.ntp.org [IPv6:2001:4f8:fff7:1::5]) by lists.ntp.org (Postfix) with ESMTP id 470B086D33D for ; Fri, 15 Feb 2013 17:17:14 +0000 (UTC) Received: from mail5.symmetricom.com ([69.25.98.10]) by mail1.ntp.org with esmtp (Exim 4.77 (FreeBSD)) (envelope-from ) id 1U6OuO-0005SN-EG for ntpwg@lists.ntp.org; Fri, 15 Feb 2013 17:17:14 +0000 X-ASG-Debug-ID: 1360948626-05bdbc4d9e2f1eb0001-dac64w Received: from SJC-HUB-01.symmetricom.com ([192.168.10.171]) by mail5.symmetricom.com with ESMTP id D62dMeZduUACdBdK; Fri, 15 Feb 2013 09:17:06 -0800 (PST) X-Barracuda-Envelope-From: gdowd@symmetricom.com X-ASG-Whitelist: Client Received: from SJC-MBX-01.symmetricom.com ([169.254.1.122]) by SJC-HUB-01.symmetricom.com ([::1]) with mapi id 14.01.0289.001; Fri, 15 Feb 2013 09:17:06 -0800 From: Greg Dowd To: "dieter.sibold@ptb.de" , "ntpwg@lists.ntp.org" , "ntpwg-bounces+dieter.sibold=ptb.de@lists.ntp.org" , Tal Mizrahi Thread-Topic: [ntpwg] Updated draft-mizrahi-ntp-extension-field X-ASG-Orig-Subj: RE: [ntpwg] Updated draft-mizrahi-ntp-extension-field Thread-Index: Ac4Ki/n0X2yosKhKTceYbPgH5oox+QATdVLQADcVGYAABaekgA== Date: Fri, 15 Feb 2013 17:17:05 +0000 Message-ID: <26FBD265CD8D234EAF41115A180F92BB6EC62B71@SJC-MBX-01.symmetricom.com> References: <74470498B659FA4687F0B0018C19A89C01A0F951AE22@IL-MB01.marvell.com> <26FBD265CD8D234EAF41115A180F92BB6EC61DFC@SJC-MBX-01.symmetricom.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [192.168.3.9] MIME-Version: 1.0 X-Barracuda-Connect: UNKNOWN[192.168.10.171] X-Barracuda-Start-Time: 1360948626 X-Barracuda-URL: http://192.168.10.96:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at symmetricom.com X-Barracuda-BRTS-Status: 1 X-SA-Exim-Connect-IP: 69.25.98.10 X-SA-Exim-Rcpt-To: ntpwg@lists.ntp.org X-SA-Exim-Mail-From: btv1==75860d923c8==gdowd@symmetricom.com X-SA-Exim-Version: 4.2 X-SA-Exim-Scanned: Yes (on mail1.ntp.org) Subject: Re: [ntpwg] Updated draft-mizrahi-ntp-extension-field X-BeenThere: ntpwg@lists.ntp.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: IETF Working Group for Network Time Protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Sender: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org SSB0aGluayBpdCBtdXN0IGhhdmUgYmVlbiBhbiBlZGl0aW5nIGVycm9yLiAgVGhlIG92ZXJyaWRp bmcgcmVxdWlyZW1lbnQgdGhhdCBleHRlbnNpb25zIGJlIGF0IGxlYXN0IDI4IGJ5dGVzIHN1cHBv cnRzIHRoZSBvcmlnaW5hbCBNQUMuICBUaGVyZSBhcmUgbGVnYWN5IGltcGxlbWVudGF0aW9ucyB0 aGF0IHBhcnNlZCB0aGUgbGVuIHRvIGRldGVybWluZSBrZXl0eXBlIChERVMsIE1ENSkuICBJZiBp dCBnb2VzIGJleW9uZCB0aGF0LCB0aGVuIHdlJ2QgaGF2ZSBleHRlbnNpb25zLiAgDQoNCg0KR3Jl ZyBEb3dkwqB8wqBTeW1tZXRyaWNvbcKuLCBJbmMuDQpTdGFmZiBTY2llbnRpc3TCoA0KMjMwMCBP cmNoYXJkIFBhcmt3YXksIFNhbiBKb3NlLCBDQSA5NTEzMQ0KRGlyZWN0OsKgIDQwOC45NjQuNzY0 M8KgDQpnZG93ZEBzeW1tZXRyaWNvbS5jb23CoMKgfMKgwqB3d3cuc3ltbWV0cmljb20uY29tDQpT eW1tZXRyaWNvbS7CoCBMZWFkaW5nIHRoZSB3b3JsZCBpbiBwcmVjaXNlIHRpbWUgc29sdXRpb25z Lg0KDQoNCi0tLS0tT3JpZ2luYWwgTWVzc2FnZS0tLS0tDQpGcm9tOiBkaWV0ZXIuc2lib2xkQHB0 Yi5kZSBbbWFpbHRvOmRpZXRlci5zaWJvbGRAcHRiLmRlXSANClNlbnQ6IEZyaWRheSwgRmVicnVh 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X19fX19fX18KbnRwd2cgbWFpbGluZyBsaXN0Cm50cHdnQGxpc3RzLm50cC5vcmcKaHR0cDovL2xp c3RzLm50cC5vcmcvbGlzdGluZm8vbnRwd2c= From ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Sun Feb 17 20:08:22 2013 Return-Path: X-Original-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Delivered-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A058821F852B for ; Sun, 17 Feb 2013 20:08:22 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.099 X-Spam-Level: X-Spam-Status: No, score=-5.099 tagged_above=-999 required=5 tests=[AWL=1.500, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8pbqHnD79J-S for ; Sun, 17 Feb 2013 20:08:21 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [IPv6:2001:4f8:fff7:1::7]) by ietfa.amsl.com (Postfix) with ESMTP id 02C9E21F841F for ; Sun, 17 Feb 2013 20:08:20 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by lists.ntp.org (Postfix) with ESMTP id EF8E586D83D for ; Mon, 18 Feb 2013 04:08:19 +0000 (UTC) X-Original-To: ntpwg@lists.ntp.org Delivered-To: ntpwg@lists.ntp.org Received: from mail1.ntp.org (mail1.ntp.org [IPv6:2001:4f8:fff7:1::5]) by lists.ntp.org (Postfix) with ESMTP id 21D3586D422 for ; Mon, 18 Feb 2013 04:03:39 +0000 (UTC) Received: from mx04.gis.net ([208.218.130.12]) by mail1.ntp.org with esmtp (Exim 4.77 (FreeBSD)) (envelope-from ) id 1U7Hx3-0004qA-EC for ntpwg@lists.ntp.org; Mon, 18 Feb 2013 04:03:39 +0000 Received: from [10.10.10.102] ([108.1.141.191]) by mx04.gis.net; Sun, 17 Feb 2013 23:03:30 -0500 Message-ID: <5121A814.6080303@ntp.org> Date: Sun, 17 Feb 2013 23:03:32 -0500 From: Danny Mayer Organization: NTP User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20130107 Thunderbird/17.0.2 MIME-Version: 1.0 To: Greg Dowd References: <74470498B659FA4687F0B0018C19A89C01A0F951AE22@IL-MB01.marvell.com> <26FBD265CD8D234EAF41115A180F92BB6EC61DFC@SJC-MBX-01.symmetricom.com> In-Reply-To: <26FBD265CD8D234EAF41115A180F92BB6EC61DFC@SJC-MBX-01.symmetricom.com> X-Enigmail-Version: 1.5 X-SA-Exim-Connect-IP: 208.218.130.12 X-SA-Exim-Rcpt-To: ntpwg@lists.ntp.org X-SA-Exim-Mail-From: mayer@ntp.org X-SA-Exim-Version: 4.2 X-SA-Exim-Scanned: Yes (on mail1.ntp.org) Cc: "ntpwg@lists.ntp.org" Subject: Re: [ntpwg] Updated draft-mizrahi-ntp-extension-field X-BeenThere: ntpwg@lists.ntp.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: mayer@ntp.org List-Id: IETF Working Group for Network Time Protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: quoted-printable Errors-To: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Sender: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Yes, I need to withdraw this. The reason for wanting this is that there is no way to identify whether or not a MAC is present or an extension field and it's just implied indirectly. This makes dealing with unknown extension fields even more difficult and it was an attempt to reduce the possible sources of implementation errors. I managed to miss symmetric key authentication implementation which apparently does not use an extension field. Worse is the fact that symmetric key authentication is not documented in RFC5905 and going back to look at RFC1305 Appendix C is not much better. Looking back at the archives I found that I had raised this as an issue back in August 2008 but I had forgotten that too. See the WG exchange on this issue here: http://lists.ntp.org/pipermail/ntpwg/2008-August/001393.html and was never really resolved. We need to get symmetric key authentication properly documented. Maybe a separate draft? Longer term we need to consider a NTP v5 protocol which will then be able to specify the existence of a MAC and its size as part of the base part of packet. An additional issue is that the size of the MAC is not fixed and can be one size for an MD5 generated MAC and another size for an SHA generated MAC. Moreover it's not even clear which SHA we are talking about. That's one of the reasons I pushed to have the MAC implementation completely specified by the extension field in this draft, Sorry for the delay in answering but I had to do some research first. I'm not completely satisfied with my research but I was able to make it clear that I cannot remove the MAC without an extension field. My thanks to Harlan for useful discussions on this. Danny On 2/14/2013 12:38 PM, Greg Dowd wrote: > Section 4.1 seems wrong. Ntp supports MD5 checksums on packets without > extensions. = > = > Ergo, the following statement is contradicting existing behavior. What > was the intent there? > = > = > = > If there is no extension field present then a MAC MUST NOT be > = > included in the packet. This is because there is no way to tell the > = > difference between an unknown extension field and a MAC. > = > = > = > Greg Dowd | *Symmetricom=AE, Inc.* > = > /Staff Scientist / > 2300 Orchard Parkway, San Jose, CA 95131 > Direct: 408.964.7643 = > gdowd@symmetricom.com > | www.symmetricom.com > > = > /Symmetricom. Leading the world in precise time solutions./ > = > = > = > *From:*ntpwg-bounces+gdowd=3Dsymmetricom.com@lists.ntp.org > [mailto:ntpwg-bounces+gdowd=3Dsymmetricom.com@lists.ntp.org] *On Behalf Of > *Tal Mizrahi > *Sent:* Thursday, February 14, 2013 12:23 AM > *To:* ntpwg@lists.ntp.org > *Subject:* [ntpwg] Updated draft-mizrahi-ntp-extension-field > = > = > = > Hi, > = > = > = > Main changes compared to draft 00: > = > - Danny Mayer has joined as a co-author. > = > - We have separated the draft into two sections: > = > o Section 3 describes how extension fields can be used in the absence > of a MAC according to the existing RFC 5905 and 5906. > = > o Section 4 defines further extensions for using extension fields, and > therefore updates RFC 5905. The intended status of the document was > changed to =91Standards Track=92 accordingly. > = > = > = > http://tools.ietf.org/html/draft-mizrahi-ntp-extension-field-01 > = > = > = > Comments are welcome. > = > = > = > Thanks, > = > Tal. > = > = > = > = > = > _______________________________________________ > ntpwg mailing list > ntpwg@lists.ntp.org > http://lists.ntp.org/listinfo/ntpwg > = _______________________________________________ ntpwg mailing list ntpwg@lists.ntp.org http://lists.ntp.org/listinfo/ntpwg From ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Sun Feb 17 20:24:13 2013 Return-Path: X-Original-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Delivered-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A249A21F8B9B for ; Sun, 17 Feb 2013 20:24:13 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5.203 X-Spam-Level: X-Spam-Status: No, score=-5.203 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, MIME_QP_LONG_LINE=1.396, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id SWuBnE-ubQlI for ; Sun, 17 Feb 2013 20:24:12 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [IPv6:2001:4f8:fff7:1::7]) by ietfa.amsl.com (Postfix) with ESMTP id B04CD21F8B98 for ; Sun, 17 Feb 2013 20:24:12 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by lists.ntp.org (Postfix) with ESMTP id 4BFBC86DAEA for ; Mon, 18 Feb 2013 04:24:12 +0000 (UTC) X-Original-To: ntpwg@lists.ntp.org Delivered-To: ntpwg@lists.ntp.org Received: from mail1.ntp.org (mail1.ntp.org [IPv6:2001:4f8:fff7:1::5]) by lists.ntp.org (Postfix) with ESMTP id 359E286D422; Mon, 18 Feb 2013 04:17:33 +0000 (UTC) Received: from static-108-1-141-191.bstnma.east.verizon.net ([108.1.141.191] helo=[10.10.10.102]) by mail1.ntp.org with esmtpsa (TLSv1:CAMELLIA256-SHA:256) (Exim 4.77 (FreeBSD)) (envelope-from ) id 1U7IAU-0004uL-8i; Mon, 18 Feb 2013 04:17:32 +0000 Message-ID: <5121AB57.5050600@ntp.org> Date: Sun, 17 Feb 2013 23:17:27 -0500 From: Danny Mayer User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20130107 Thunderbird/17.0.2 MIME-Version: 1.0 To: dieter.sibold@ptb.de References: <74470498B659FA4687F0B0018C19A89C01A0F951AE22@IL-MB01.marvell.com> <26FBD265CD8D234EAF41115A180F92BB6EC61DFC@SJC-MBX-01.symmetricom.com> In-Reply-To: X-Enigmail-Version: 1.5 X-SA-Exim-Connect-IP: 108.1.141.191 X-SA-Exim-Rcpt-To: dieter.sibold@ptb.de, ntpwg@lists.ntp.org, ntpwg-bounces+dieter.sibold=ptb.de@lists.ntp.org, talmi@marvell.com, gdowd@symmetricom.com X-SA-Exim-Mail-From: mayer@ntp.org X-SA-Exim-Version: 4.2 X-SA-Exim-Scanned: Yes (on mail1.ntp.org) Cc: "ntpwg@lists.ntp.org" , ntpwg-bounces+dieter.sibold=ptb.de@lists.ntp.org Subject: Re: [ntpwg] Updated draft-mizrahi-ntp-extension-field X-BeenThere: ntpwg@lists.ntp.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: IETF Working Group for Network Time Protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: quoted-printable Errors-To: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Sender: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org The problem with the key identifier in front of the digest is that there is no way to know whether the key identifier is the first part of the MAC or it's an extension field header. I haven't spent the time looking at this in detail to work out whether it's realistic to be able to differentiate between an extension field and a MAC. That might help implementations but would require additional restrictions on extension fields to ensure no errors in processing the extension fields and MAC. Danny On 2/15/2013 6:53 AM, dieter.sibold@ptb.de wrote: > I have the same question as Greg. It seems that this section would disabl= e = > the symmetric authentication mechanism. From the point of view of an NTP = > service provider this would be a pity, because if users are requesting an = > authenticated NTP service they generally would request just this old = > approach, since normally they wouldn't understand autokey or autokey = > wouldn't work because it doesn't work in conjunction with NAT. > = > As far as I know there is a key/algorithm identifier in front of the = > actual MAC. Is it possible to use this to identify a MAC? > = > Regards > Dieter > = > = > = > ---------------------------------- > Physikalisch-Technische Bundesanstalt > Q.42 - Server Administration > Dr. Dieter Sibold > Bundesallee 100 = > D-38116 Braunschweig > Tel: +49-531-592-84 20 > Mobile > E-Mail: dieter.sibold@ptb.de > = > = > = > Von: Greg Dowd > An: Tal Mizrahi , "ntpwg@lists.ntp.org" = > , = > Datum: 14.02.2013 18:39 > Betreff: Re: [ntpwg] Updated draft-mizrahi-ntp-extension-field > Gesendet von: ntpwg-bounces+dieter.sibold=3Dptb.de@lists.ntp.org > = > = > = > Section 4.1 seems wrong. Ntp supports MD5 checksums on packets without = > extensions. = > Ergo, the following statement is contradicting existing behavior. What = > was the intent there? > = > If there is no extension field present then a MAC MUST NOT be > included in the packet. This is because there is no way to tell the > difference between an unknown extension field and a MAC. > = > Greg Dowd | Symmetricom=C2=AE, Inc. > Staff Scientist = > 2300 Orchard Parkway, San Jose, CA 95131 > Direct: 408.964.7643 = > gdowd@symmetricom.com | www.symmetricom.com > Symmetricom. Leading the world in precise time solutions. > = > From: ntpwg-bounces+gdowd=3Dsymmetricom.com@lists.ntp.org [ > mailto:ntpwg-bounces+gdowd=3Dsymmetricom.com@lists.ntp.org] On Behalf Of = Tal = > Mizrahi > Sent: Thursday, February 14, 2013 12:23 AM > To: ntpwg@lists.ntp.org > Subject: [ntpwg] Updated draft-mizrahi-ntp-extension-field > = > Hi, > = > Main changes compared to draft 00: > - Danny Mayer has joined as a co-author. > - We have separated the draft into two sections: = > o Section 3 describes how extension fields can be used in the absence o= f = > a MAC according to the existing RFC 5905 and 5906. > o Section 4 defines further extensions for using extension fields, and = > therefore updates RFC 5905. The intended status of the document was = > changed to =E2=80=98Standards Track=E2=80=99 accordingly. > = > http://tools.ietf.org/html/draft-mizrahi-ntp-extension-field-01 > = > Comments are welcome. > = > Thanks, > Tal. > _______________________________________________ > ntpwg mailing list > ntpwg@lists.ntp.org > http://lists.ntp.org/listinfo/ntpwg > = > = > = > _______________________________________________ > ntpwg mailing list > ntpwg@lists.ntp.org > http://lists.ntp.org/listinfo/ntpwg > = _______________________________________________ ntpwg mailing list ntpwg@lists.ntp.org http://lists.ntp.org/listinfo/ntpwg From ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Mon Feb 18 11:55:35 2013 Return-Path: X-Original-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Delivered-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8F02B21F8C18 for ; Mon, 18 Feb 2013 11:55:35 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.598 X-Spam-Level: X-Spam-Status: No, score=-6.598 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2LRZkKoOppz5 for ; Mon, 18 Feb 2013 11:55:34 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by ietfa.amsl.com (Postfix) with ESMTP id E7D9B21F8B26 for ; Mon, 18 Feb 2013 11:55:33 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by lists.ntp.org (Postfix) with ESMTP id 2F40186DAE1 for ; Mon, 18 Feb 2013 19:55:33 +0000 (UTC) X-Original-To: ntpwg@lists.ntp.org Delivered-To: ntpwg@lists.ntp.org Received: from mail1.ntp.org (mail1.ntp.org [IPv6:2001:4f8:fff7:1::5]) by lists.ntp.org (Postfix) with ESMTP id 64B1B86D422 for ; Mon, 18 Feb 2013 19:51:20 +0000 (UTC) Received: from email.noao.edu ([140.252.1.57]) by mail1.ntp.org with esmtp (Exim 4.77 (FreeBSD)) (envelope-from ) id 1U7WkA-000Dwj-P7 for ntpwg@lists.ntp.org; Mon, 18 Feb 2013 19:51:20 +0000 Received: from dhcp-4-158.tuc.noao.edu ([140.252.4.158] verified) by email.noao.edu (CommuniGate Pro SMTP 5.4.7) with ESMTPS id 82261605; Mon, 18 Feb 2013 12:51:13 -0700 From: Rob Seaman Date: Mon, 18 Feb 2013 12:51:18 -0700 To: NTP Working Group Message-Id: Mime-Version: 1.0 (Mac OS X Mail 6.2 \(1499\)) X-Mailer: Apple Mail (2.1499) X-SA-Exim-Connect-IP: 140.252.1.57 X-SA-Exim-Rcpt-To: ntpwg@lists.ntp.org X-SA-Exim-Mail-From: seaman@noao.edu X-SA-Exim-Version: 4.2 X-SA-Exim-Scanned: Yes (on mail1.ntp.org) Subject: [ntpwg] Meeting of interest to NTP WG X-BeenThere: ntpwg@lists.ntp.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: IETF Working Group for Network Time Protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============3099683724403160595==" Errors-To: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Sender: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org --===============3099683724403160595== Content-Type: multipart/alternative; boundary="Apple-Mail=_45CD933C-8BD1-4037-BE64-18C289339E0A" --Apple-Mail=_45CD933C-8BD1-4037-BE64-18C289339E0A Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Hello, We have been wholesaling announcements on a variety of forums for the = meeting we have organized, "Requirements for UTC and Civil Timekeeping = on Earth". The details: UTC and Civil Timekeeping University of Virginia Charlottesville, VA May 29-31, 2013 * http://futureofutc.org (for registration and abstracts) This is a follow-up to our previous meeting, "Decoupling Civil = Timekeeping from Earth Rotation", that was held in Pennsylvania in = October 2011. The proceedings are available from: http://www.univelt.com/book=3D3042 and preprints, presentations and transcribed discussions are linked to = the current meeting's web site. While the specific motivation of the meeting is to provide a response to = the International Telecommunication Union's proposed redefinition of = UTC, and their request at WRC-12 for additional study of the issues - = more generally this is an opportunity to discuss the broad technical, = scientific, legal, historical and many other implications of time in = society. We will also make a considered attempt to identify fundamental = engineering requirements for civil timekeeping, and begin to organize an = effort to design and deploy new protocols and infrastructure, standards = and informatics for timekeeping systems moving forward. Work is needed = whether or not leap seconds cease. NTP is a great tool, but it can only = deliver a coherent time scale(s) if such are defined in the first place. Thanks for your consideration. The meeting will be stronger with = participation from the NTP working group. Rob Seaman National Optical Astronomy Observatory Tucson, Arizona -- * There will be a reception on the evening of May 28 at the Leander = McCormick Observatory on the UVA campus, which has a lovely 26" Alvan = Clark refractor. The UTC sessions will be on May 29-30 and we're holding = May 31 for any unfinished business as well as a tour of Monticello's = clocks and sundials.= --Apple-Mail=_45CD933C-8BD1-4037-BE64-18C289339E0A Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii
UTC and = Civil Timekeeping
University of Virginia
Charlottesville, VA
May = 29-31, 2013 *
http://futureofutc.org (for = registration and abstracts)

This is a follow-up to our previous = meeting, "Decoupling Civil Timekeeping from Earth Rotation", that was = held in Pennsylvania in October 2011.  The proceedings are = available from:

http://www.univelt.com/book=3D= 3042

and preprints, presentations and transcribed discussions = are linked to the current meeting's web site.

While the specific = motivation of the meeting is to provide a response to the International = Telecommunication Union's proposed redefinition of UTC, and their = request at WRC-12 for additional study of the issues - more generally = this is an opportunity to discuss the broad technical, scientific, = legal, historical and many other implications of time in society. =  We will also make a considered attempt to identify fundamental = engineering requirements for civil timekeeping, and begin to organize an = effort to design and deploy new protocols and infrastructure, standards = and informatics for timekeeping systems moving forward.  Work is = needed whether or not leap seconds cease.  NTP is a great tool, but = it can only deliver a coherent time scale(s) if such are defined in the = first place.

Thanks for your consideration.  The meeting = will be stronger with participation from the NTP working = group.

Rob Seaman
National Optical Astronomy = Observatory
Tucson, Arizona
--

* There will be a reception = on the evening of May 28 at the Leander McCormick Observatory on the UVA = campus, which has a lovely 26" Alvan Clark refractor. The UTC sessions = will be on May 29-30 and we're holding May 31 for any unfinished = business as well as a tour of Monticello's clocks and = sundials.= --Apple-Mail=_45CD933C-8BD1-4037-BE64-18C289339E0A-- --===============3099683724403160595== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ ntpwg mailing list ntpwg@lists.ntp.org http://lists.ntp.org/listinfo/ntpwg --===============3099683724403160595==-- From ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Mon Feb 25 03:42:03 2013 Return-Path: X-Original-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Delivered-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 789B521F92C1 for ; Mon, 25 Feb 2013 03:42:03 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -104.932 X-Spam-Level: X-Spam-Status: No, score=-104.932 tagged_above=-999 required=5 tests=[AWL=1.667, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4, USER_IN_WHITELIST=-100] Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id WR+PIG8cPQZ1 for ; Mon, 25 Feb 2013 03:42:02 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [IPv6:2001:4f8:fff7:1::7]) by ietfa.amsl.com (Postfix) with ESMTP id B7DC221F92A9 for ; Mon, 25 Feb 2013 03:41:59 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by lists.ntp.org (Postfix) with ESMTP id 92F0286D784 for ; Mon, 25 Feb 2013 11:41:59 +0000 (UTC) X-Original-To: ntpwg@lists.ntp.org Delivered-To: ntpwg@lists.ntp.org Received: from mail1.ntp.org (mail1.ntp.org [IPv6:2001:4f8:fff7:1::5]) by lists.ntp.org (Postfix) with ESMTP id 712B586D33D for ; Mon, 25 Feb 2013 11:41:43 +0000 (UTC) Received: from smtp158.dfw.emailsrvr.com ([67.192.241.158]) by mail1.ntp.org with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77 (FreeBSD)) (envelope-from ) id 1U9wRB-000L5E-V0 for ntpwg@lists.ntp.org; Mon, 25 Feb 2013 11:41:43 +0000 Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp25.relay.dfw1a.emailsrvr.com (SMTP Server) with ESMTP id E75202D0680; Mon, 25 Feb 2013 06:41:35 -0500 (EST) X-Virus-Scanned: OK Received: by smtp25.relay.dfw1a.emailsrvr.com (Authenticated sender: odonoghue-AT-isoc.org) with ESMTPSA id A70B82D038B; Mon, 25 Feb 2013 06:41:35 -0500 (EST) Message-ID: <512B4DF0.8040907@isoc.org> Date: Mon, 25 Feb 2013 06:41:36 -0500 From: Karen O'Donoghue Organization: ISOC User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:17.0) Gecko/20130107 Thunderbird/17.0.2 MIME-Version: 1.0 To: "tictoc@ietf.org" , NTP Working Group X-SA-Exim-Connect-IP: 67.192.241.158 X-SA-Exim-Rcpt-To: ntpwg@lists.ntp.org X-SA-Exim-Mail-From: odonoghue@isoc.org X-SA-Exim-Version: 4.2 X-SA-Exim-Scanned: Yes (on mail1.ntp.org) Subject: [ntpwg] TICTOC WGLC of draft-ietf-tictoc-security-requirements X-BeenThere: ntpwg@lists.ntp.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: odonoghue@isoc.org List-Id: IETF Working Group for Network Time Protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Sender: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org This message initiates a two week TICTOC Working Group Last Call on advancing: Title : Security Requirements of Time Synchronization Protocols in Packet Switched Networks Author(s) : Tal Mizrahi Filename : draft-ietf-tictoc-security-requirements-04.txt Pages : 32 Date : 2013-02-07 http://datatracker.ietf.org/doc/draft-ietf-tictoc-security-requirements/ as an Informational RFC. Substantive comments and statements of support for advancing this document should be directed to the mailing list. Editorial suggestions can be sent directly to the authors. This last call will end on 12 March 2013. I realize this WGLC comes right before the IETF; however, this document has been around for a long time, and it is my hope that this can be done expeditiously. Regards, Karen Abstract: As time synchronization protocols are becoming increasingly common and widely deployed, concern about their exposure to various security threats is increasing. This document defines a set of security requirements for time synchronization protocols, focusing on the Precision Time Protocol (PTP) and the Network Time Protocol (NTP). This document also discusses the security impacts of time synchronization protocol practices, the time synchronization performance implications of external security practices, the dependencies between other security services and time synchronization. _______________________________________________ ntpwg mailing list ntpwg@lists.ntp.org http://lists.ntp.org/listinfo/ntpwg From ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Mon Feb 25 17:06:49 2013 Return-Path: X-Original-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Delivered-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0653021E816E for ; Mon, 25 Feb 2013 17:06:49 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.395 X-Spam-Level: X-Spam-Status: No, score=-2.395 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, MIME_BASE64_TEXT=1.753, MIME_CHARSET_FARAWAY=2.45, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id RSav8Q2apEP0 for ; Mon, 25 Feb 2013 17:06:48 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [IPv6:2001:4f8:fff7:1::7]) by ietfa.amsl.com (Postfix) with ESMTP id D400C21E8127 for ; Mon, 25 Feb 2013 17:06:43 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by lists.ntp.org (Postfix) with ESMTP id BE1A486DADF for ; Tue, 26 Feb 2013 01:06:43 +0000 (UTC) X-Original-To: ntpwg@lists.ntp.org Delivered-To: ntpwg@lists.ntp.org Received: from mail1.ntp.org (mail1.ntp.org [IPv6:2001:4f8:fff7:1::5]) by lists.ntp.org (Postfix) with ESMTP id 28F0486D4E3 for ; Tue, 26 Feb 2013 01:06:32 +0000 (UTC) Received: from szxga02-in.huawei.com ([119.145.14.65]) by mail1.ntp.org with esmtp (Exim 4.77 (FreeBSD)) (envelope-from ) id 1UA901-000Pip-5s for ntpwg@lists.ntp.org; Tue, 26 Feb 2013 01:06:32 +0000 Received: from 172.24.2.119 (EHLO szxeml205-edg.china.huawei.com) ([172.24.2.119]) by szxrg02-dlp.huawei.com (MOS 4.3.4-GA FastPath queued) with ESMTP id AXQ14152; Tue, 26 Feb 2013 09:06:11 +0800 (CST) Received: from SZXEML455-HUB.china.huawei.com (10.82.67.198) by szxeml205-edg.china.huawei.com (172.24.2.58) with Microsoft SMTP Server (TLS) id 14.1.323.7; Tue, 26 Feb 2013 09:06:09 +0800 Received: from NKGEML403-HUB.china.huawei.com (10.98.56.34) by SZXEML455-HUB.china.huawei.com (10.82.67.198) with Microsoft SMTP Server (TLS) id 14.1.323.7; Tue, 26 Feb 2013 09:06:01 +0800 Received: from NKGEML505-MBX.china.huawei.com ([169.254.1.31]) by nkgeml403-hub.china.huawei.com ([10.98.56.34]) with mapi id 14.01.0323.007; Tue, 26 Feb 2013 09:06:09 +0800 From: Cuiyang To: Kevin Gross , "odonoghue@isoc.org" Thread-Topic: [TICTOC] TICTOC WGLC of draft-ietf-tictoc-security-requirements Thread-Index: AQHOE00cHgjkQ1AY0EGgWmbm6RmFSZiKHycAgAE1CxA= Date: Tue, 26 Feb 2013 01:06:08 +0000 Message-ID: <8CC0CB0BCAE52F46882E17828A9AE21637319342@nkgeml505-mbx.china.huawei.com> References: <512B4DF0.8040907@isoc.org> In-Reply-To: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.111.48.139] MIME-Version: 1.0 X-CFilter-Loop: Reflected X-SA-Exim-Connect-IP: 119.145.14.65 X-SA-Exim-Rcpt-To: ntpwg@lists.ntp.org X-SA-Exim-Mail-From: cuiyang@huawei.com X-SA-Exim-Version: 4.2 X-SA-Exim-Scanned: Yes (on mail1.ntp.org) Cc: NTP Working Group , "tictoc@ietf.org" Subject: Re: [ntpwg] [TICTOC] TICTOC WGLC of draft-ietf-tictoc-security-requirements X-BeenThere: ntpwg@lists.ntp.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: IETF Working Group for Network Time Protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============5180012143977077461==" Errors-To: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Sender: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org --===============5180012143977077461== Content-Language: zh-CN Content-Type: multipart/alternative; boundary="_000_8CC0CB0BCAE52F46882E17828A9AE21637319342nkgeml505mbxchi_" --_000_8CC0CB0BCAE52F46882E17828A9AE21637319342nkgeml505mbxchi_ Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 U3VwcG9ydCArMQ0KDQo9PT09PT09PT09PT09PT09PT0NCllhbmcgQ3VpLCAgUGguRC4NCkh1YXdl aSBUZWNobm9sb2dpZXMNCmN1aXlhbmdAaHVhd2VpLmNvbQ0KDQq3orz+yMs6IHRpY3RvYy1ib3Vu Y2VzQGlldGYub3JnIFttYWlsdG86dGljdG9jLWJvdW5jZXNAaWV0Zi5vcmddILT6se0gS2V2aW4g R3Jvc3MNCreiy83KsbzkOiAyMDEzxOoy1MIyNcjVIDIyOjQwDQrK1bz+yMs6IG9kb25vZ2h1ZUBp c29jLm9yZw0Ks63LzTogTlRQIFdvcmtpbmcgR3JvdXA7IHRpY3RvY0BpZXRmLm9yZw0K1vfM4jog UmU6IFtUSUNUT0NdIFRJQ1RPQyBXR0xDIG9mIGRyYWZ0LWlldGYtdGljdG9jLXNlY3VyaXR5LXJl cXVpcmVtZW50cw0KDQpJIHN1cHBvcnQgYWR2YW5jaW5nIHRoaXMgZHJhZnQuDQoNCktldmluIEdy b3NzDQorMS0zMDMtNDQ3LTA1MTcNCk1lZGlhIE5ldHdvcmsgQ29uc3VsdGFudA0KQVZBIE5ldHdv cmtzIC0gd3d3LkFWQW53LmNvbTxodHRwOi8vd3d3LmF2YW53LmNvbS8+LCB3d3cuWDE5Mi5vcmc8 aHR0cDovL3d3dy5YMTkyLm9yZz4NCg0KT24gTW9uLCBGZWIgMjUsIDIwMTMgYXQgNDo0MSBBTSwg S2FyZW4gTydEb25vZ2h1ZSA8b2Rvbm9naHVlQGlzb2Mub3JnPG1haWx0bzpvZG9ub2dodWVAaXNv Yy5vcmc+PiB3cm90ZToNCg0KVGhpcyBtZXNzYWdlIGluaXRpYXRlcyBhIHR3byB3ZWVrIFRJQ1RP QyBXb3JraW5nIEdyb3VwIExhc3QgQ2FsbCBvbiBhZHZhbmNpbmc6DQoNClRpdGxlIDogU2VjdXJp dHkgUmVxdWlyZW1lbnRzIG9mIFRpbWUgU3luY2hyb25pemF0aW9uIFByb3RvY29scyBpbiBQYWNr ZXQgU3dpdGNoZWQgTmV0d29ya3MNCkF1dGhvcihzKSA6IFRhbCBNaXpyYWhpDQpGaWxlbmFtZSA6 IGRyYWZ0LWlldGYtdGljdG9jLXNlY3VyaXR5LXJlcXVpcmVtZW50cy0wNC50eHQNClBhZ2VzIDog MzINCkRhdGUgOiAyMDEzLTAyLTA3DQoNCmh0dHA6Ly9kYXRhdHJhY2tlci5pZXRmLm9yZy9kb2Mv ZHJhZnQtaWV0Zi10aWN0b2Mtc2VjdXJpdHktcmVxdWlyZW1lbnRzLw0KDQphcyBhbiBJbmZvcm1h dGlvbmFsIFJGQy4gU3Vic3RhbnRpdmUgY29tbWVudHMgYW5kIHN0YXRlbWVudHMgb2Ygc3VwcG9y dCBmb3IgYWR2YW5jaW5nIHRoaXMgZG9jdW1lbnQgc2hvdWxkIGJlIGRpcmVjdGVkIHRvIHRoZSBt YWlsaW5nIGxpc3QuIEVkaXRvcmlhbCBzdWdnZXN0aW9ucyBjYW4gYmUgc2VudCBkaXJlY3RseSB0 byB0aGUgYXV0aG9ycy4gVGhpcyBsYXN0IGNhbGwgd2lsbCBlbmQgb24gMTIgTWFyY2ggMjAxMy4N Cg0KSSByZWFsaXplIHRoaXMgV0dMQyBjb21lcyByaWdodCBiZWZvcmUgdGhlIElFVEY7IGhvd2V2 ZXIsIHRoaXMgZG9jdW1lbnQgaGFzIGJlZW4gYXJvdW5kIGZvciBhIGxvbmcgdGltZSwgYW5kIGl0 IGlzIG15IGhvcGUgdGhhdCB0aGlzIGNhbiBiZSBkb25lIGV4cGVkaXRpb3VzbHkuDQoNClJlZ2Fy ZHMsDQpLYXJlbg0KDQpBYnN0cmFjdDogQXMgdGltZSBzeW5jaHJvbml6YXRpb24gcHJvdG9jb2xz IGFyZSBiZWNvbWluZyBpbmNyZWFzaW5nbHkgY29tbW9uIGFuZCB3aWRlbHkgZGVwbG95ZWQsIGNv bmNlcm4gYWJvdXQgdGhlaXIgZXhwb3N1cmUgdG8gdmFyaW91cyBzZWN1cml0eSB0aHJlYXRzIGlz IGluY3JlYXNpbmcuIFRoaXMgZG9jdW1lbnQgZGVmaW5lcyBhIHNldCBvZiBzZWN1cml0eSByZXF1 aXJlbWVudHMgZm9yIHRpbWUgc3luY2hyb25pemF0aW9uIHByb3RvY29scywgZm9jdXNpbmcgb24g dGhlIFByZWNpc2lvbiBUaW1lIFByb3RvY29sIChQVFApIGFuZCB0aGUgTmV0d29yayBUaW1lIFBy b3RvY29sIChOVFApLiBUaGlzIGRvY3VtZW50IGFsc28gZGlzY3Vzc2VzIHRoZSBzZWN1cml0eSBp bXBhY3RzIG9mIHRpbWUgc3luY2hyb25pemF0aW9uIHByb3RvY29sIHByYWN0aWNlcywgdGhlIHRp bWUgc3luY2hyb25pemF0aW9uIHBlcmZvcm1hbmNlIGltcGxpY2F0aW9ucyBvZiBleHRlcm5hbCBz ZWN1cml0eSBwcmFjdGljZXMsIHRoZSBkZXBlbmRlbmNpZXMgYmV0d2VlbiBvdGhlciBzZWN1cml0 eSBzZXJ2aWNlcyBhbmQgdGltZSBzeW5jaHJvbml6YXRpb24uDQoNCg0KDQpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXw0KVElDVE9DIG1haWxpbmcgbGlzdA0K VElDVE9DQGlldGYub3JnPG1haWx0bzpUSUNUT0NAaWV0Zi5vcmc+DQpodHRwczovL3d3dy5pZXRm Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3RpY3RvYw0KDQo= --_000_8CC0CB0BCAE52F46882E17828A9AE21637319342nkgeml505mbxchi_ Content-Type: text/html; charset="gb2312" Content-Transfer-Encoding: quoted-printable

Support &#= 43;1

 = ;

=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D

Yang Cui,  Ph.D.<= /o:p>

Huawei Technologies

cuiyang@huawei.com

 = ;

=B7=A2=BC=FE=C8=CB: tictoc-= bounces@ietf.org [mailto:tictoc-bounces@ietf.org] =B4=FA= =B1=ED Kevin Gross
=B7=A2= =CB=CD=CA=B1=BC=E4: 2013=C4=EA2=D4=C225=C8=D5 22:40
=CA=D5=BC=FE=C8=CB: odonoghue@isoc.org
=B3=AD=CB=CD: NTP Working Group; tictoc@ietf.org
=D6=F7=CC=E2: Re: [TICTOC] TICTOC WGLC of draft-ietf-tictoc-security-requirements<= /o:p>

 

I support advancing this draft.=


Kevin Gross

+1-303-447-0517<= /span>

Media Network Consultant

AVA Networks - www.AVAnw.com, www.X192.org<= /p>

=  

On Mon, Feb 25, 2013 at 4:41 AM= , Karen O'Donoghue <odonoghue@isoc.org> wrote:


This message initiates a two week TICTOC Working Group Last Call on advanci= ng:

Title : Security Requirements of Time Synchronization Protocols in Packet S= witched Networks
Author(s) : Tal Mizrahi
Filename : draft-ietf-tictoc-security-requirements-04.txt
Pages : 32
Date : 2013-02-07

http://datatracker.ietf.org/doc/draft-ietf-tict= oc-security-requirements/

as an Informational RFC. Substantive comments and statements of support for= advancing this document should be directed to the mailing list. Editorial = suggestions can be sent directly to the authors. This last call will end on= 12 March 2013.

I realize this WGLC comes right before the IETF; however, this document has= been around for a long time, and it is my hope that this can be done exped= itiously.

Regards,
Karen

Abstract: As time synchronization protocols are becoming increasingly commo= n and widely deployed, concern about their exposure to various security thr= eats is increasing. This document defines a set of security requirements fo= r time synchronization protocols, focusing on the Precision Time Protocol (PTP) and the Network Time Protoco= l (NTP). This document also discusses the security impacts of time synchron= ization protocol practices, the time synchronization performance implicatio= ns of external security practices, the dependencies between other security services and time synchronization.=



_______________________________________________
TICTOC mailing list
TICTOC@ietf.org = https://www.ietf.org/mailman/listinfo/tictoc

 

--_000_8CC0CB0BCAE52F46882E17828A9AE21637319342nkgeml505mbxchi_-- --===============5180012143977077461== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ ntpwg mailing list ntpwg@lists.ntp.org http://lists.ntp.org/listinfo/ntpwg --===============5180012143977077461==-- From ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Tue Feb 26 05:10:51 2013 Return-Path: X-Original-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Delivered-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0DDC821F8A4F for ; Tue, 26 Feb 2013 05:10:51 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.551 X-Spam-Level: X-Spam-Status: No, score=-2.551 tagged_above=-999 required=5 tests=[AWL=1.759, BAYES_00=-2.599, FM_FORGED_GMAIL=0.622, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4, SARE_HTML_USL_OBFU=1.666] Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2jJS202NDyM7 for ; Tue, 26 Feb 2013 05:10:49 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by ietfa.amsl.com (Postfix) with ESMTP id 9D26E21F8A1D for ; Tue, 26 Feb 2013 05:10:49 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by lists.ntp.org (Postfix) with ESMTP id 89EC886D532 for ; Tue, 26 Feb 2013 13:10:49 +0000 (UTC) X-Original-To: ntpwg@lists.ntp.org Delivered-To: ntpwg@lists.ntp.org Received: from mail1.ntp.org (mail1.ntp.org [IPv6:2001:4f8:fff7:1::5]) by lists.ntp.org (Postfix) with ESMTP id C295386D33D for ; Mon, 25 Feb 2013 14:40:12 +0000 (UTC) Received: from oproxy7-pub.bluehost.com ([67.222.55.9]) by mail1.ntp.org with smtp (Exim 4.77 (FreeBSD)) (envelope-from ) id 1U9zDu-000MCa-FO for ntpwg@lists.ntp.org; Mon, 25 Feb 2013 14:40:12 +0000 Received: (qmail 6409 invoked by uid 0); 25 Feb 2013 14:39:37 -0000 Received: from unknown (HELO host291.hostmonster.com) (74.220.215.91) by oproxy7.bluehost.com with SMTP; 25 Feb 2013 14:39:37 -0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=avanw.com; s=default; h=Content-Type:Cc:To:From:Subject:Message-ID:Date:References:In-Reply-To:MIME-Version; bh=ATDDmlgZ5KuG9LZQ+yWdO2nTVStWXpmCgB8CoDo6cqY=; b=SduENt8fiWQwWm/RrGrOSY945mlLQ20OZvPBQ05Iyk9egttXzxiFWYWSa/OABhNlinzOpfkkBRjdI7isnt8ydR+r73agNsLVV16LIL67BONSo61niy7AMAClNQOZSCgH; Received: from [209.85.210.179] (port=44806 helo=mail-ia0-f179.google.com) by host291.hostmonster.com with esmtpsa (TLSv1:RC4-SHA:128) (Exim 4.80) (envelope-from ) id 1U9zDN-0005AF-Bc for ntpwg@lists.ntp.org; Mon, 25 Feb 2013 07:39:37 -0700 Received: by mail-ia0-f179.google.com with SMTP id x24so2479244iak.38 for ; Mon, 25 Feb 2013 06:39:36 -0800 (PST) MIME-Version: 1.0 X-Received: by 10.50.37.212 with SMTP id a20mr3533801igk.88.1361803176448; Mon, 25 Feb 2013 06:39:36 -0800 (PST) Received: by 10.50.183.163 with HTTP; Mon, 25 Feb 2013 06:39:36 -0800 (PST) In-Reply-To: <512B4DF0.8040907@isoc.org> References: <512B4DF0.8040907@isoc.org> Date: Mon, 25 Feb 2013 07:39:36 -0700 Message-ID: From: Kevin Gross To: odonoghue@isoc.org X-Identified-User: {1416:host291.hostmonster.com:avanwcom:avanw.com} {sentby:smtp auth 209.85.210.179 authed with kevin.gross@avanw.com} X-SA-Exim-Connect-IP: 67.222.55.9 X-SA-Exim-Rcpt-To: ntpwg@lists.ntp.org X-SA-Exim-Mail-From: kevin.gross@avanw.com X-SA-Exim-Version: 4.2 X-SA-Exim-Scanned: Yes (on mail1.ntp.org) X-Mailman-Approved-At: Tue, 26 Feb 2013 13:10:34 +0000 Cc: NTP Working Group , "tictoc@ietf.org" Subject: Re: [ntpwg] [TICTOC] TICTOC WGLC of draft-ietf-tictoc-security-requirements X-BeenThere: ntpwg@lists.ntp.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: IETF Working Group for Network Time Protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============6276438884275872823==" Errors-To: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Sender: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org --===============6276438884275872823== Content-Type: multipart/alternative; boundary=f46d04446b2196139704d68d820d --f46d04446b2196139704d68d820d Content-Type: text/plain; charset=ISO-8859-1 I support advancing this draft. Kevin Gross +1-303-447-0517 Media Network Consultant AVA Networks - www.AVAnw.com , www.X192.org On Mon, Feb 25, 2013 at 4:41 AM, Karen O'Donoghue wrote: > > This message initiates a two week TICTOC Working Group Last Call on > advancing: > > Title : Security Requirements of Time Synchronization Protocols in Packet > Switched Networks > Author(s) : Tal Mizrahi > Filename : draft-ietf-tictoc-security-**requirements-04.txt > Pages : 32 > Date : 2013-02-07 > > http://datatracker.ietf.org/**doc/draft-ietf-tictoc-** > security-requirements/ > > as an Informational RFC. Substantive comments and statements of support > for advancing this document should be directed to the mailing list. > Editorial suggestions can be sent directly to the authors. This last call > will end on 12 March 2013. > > I realize this WGLC comes right before the IETF; however, this document > has been around for a long time, and it is my hope that this can be done > expeditiously. > > Regards, > Karen > > Abstract: As time synchronization protocols are becoming increasingly > common and widely deployed, concern about their exposure to various > security threats is increasing. This document defines a set of security > requirements for time synchronization protocols, focusing on the Precision > Time Protocol (PTP) and the Network Time Protocol (NTP). This document also > discusses the security impacts of time synchronization protocol practices, > the time synchronization performance implications of external security > practices, the dependencies between other security services and time > synchronization. > > > > ______________________________**_________________ > TICTOC mailing list > TICTOC@ietf.org > https://www.ietf.org/mailman/**listinfo/tictoc > --f46d04446b2196139704d68d820d Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable I support advancing this draft.

Kevin Gross
<= div>+1-303-447-0517
Media Network Consultant
AVA Networks= -=A0www.AVAnw.com,= =A0www.X192.org


On Mon, Feb 25, 2013 at 4:41 AM, Karen O= 'Donoghue <odonoghue@isoc.org> wrote:

This message initiates a two week TICTOC Working Group Last Call on advanci= ng:

Title : Security Requirements of Time Synchronization Protocols in Packet S= witched Networks
Author(s) : Tal Mizrahi
Filename : draft-ietf-tictoc-security-requirements-04.txt
Pages : 32
Date : 2013-02-07

http://datatracker.ietf.org/doc/draft-ie= tf-tictoc-security-requirements/

as an Informational RFC. Substantive comments and statements of support for= advancing this document should be directed to the mailing list. Editorial = suggestions can be sent directly to the authors. This last call will end on= 12 March 2013.

I realize this WGLC comes right before the IETF; however, this document has= been around for a long time, and it is my hope that this can be done exped= itiously.

Regards,
Karen

Abstract: As time synchronization protocols are becoming increasingly commo= n and widely deployed, concern about their exposure to various security thr= eats is increasing. This document defines a set of security requirements fo= r time synchronization protocols, focusing on the Precision Time Protocol (= PTP) and the Network Time Protocol (NTP). This document also discusses the = security impacts of time synchronization protocol practices, the time synch= ronization performance implications of external security practices, the dep= endencies between other security services and time synchronization.



_______________________________________________
TICTOC mailing list
TICTOC@ietf.org = https://www.ietf.org/mailman/listinfo/tictoc

--f46d04446b2196139704d68d820d-- --===============6276438884275872823== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ ntpwg mailing list ntpwg@lists.ntp.org http://lists.ntp.org/listinfo/ntpwg --===============6276438884275872823==-- From ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Tue Feb 26 05:39:27 2013 Return-Path: X-Original-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Delivered-To: ietfarch-ntp-archives-ahFae6za@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E37C621F87E9 for ; Tue, 26 Feb 2013 05:39:27 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.998 X-Spam-Level: X-Spam-Status: No, score=-4.998 tagged_above=-999 required=5 tests=[AWL=1.601, BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Psg1uJ-jk4NE for ; Tue, 26 Feb 2013 05:39:27 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by ietfa.amsl.com (Postfix) with ESMTP id 4075E21F87E4 for ; Tue, 26 Feb 2013 05:39:27 -0800 (PST) Received: from lists.ntp.org (lists.ntp.org [149.20.68.7]) by lists.ntp.org (Postfix) with ESMTP id 2343F86DAE9 for ; Tue, 26 Feb 2013 13:39:27 +0000 (UTC) X-Original-To: ntpwg@lists.ntp.org Delivered-To: ntpwg@lists.ntp.org Received: from mail1.ntp.org (mail1.ntp.org [IPv6:2001:4f8:fff7:1::5]) by lists.ntp.org (Postfix) with ESMTP id 7FB5786D33D; Tue, 26 Feb 2013 13:39:20 +0000 (UTC) Received: from mx1.berlin.ptb.de ([194.94.94.141]) by mail1.ntp.org with esmtp (Exim 4.77 (FreeBSD)) (envelope-from ) id 1UAKkX-0008p1-AX; Tue, 26 Feb 2013 13:39:20 +0000 Received: from MX1.Berlin.PTB.De (localhost [127.0.0.1]) by localhost (Postfix) with SMTP id 2DCEC1107A4; Tue, 26 Feb 2013 14:39:11 +0100 (CET) Received: from tulpe.berlin.ptb.de (r00031.berlin.ptb.de [172.30.200.131]) by MX1.Berlin.PTB.De (Postfix) with ESMTP id 1D4361107A0; Tue, 26 Feb 2013 14:39:11 +0100 (CET) Received: from rose.bs.ptb.de ([141.25.85.201]) by tulpe.berlin.ptb.de (Lotus Domino Release 8.5.3FP3) with ESMTP id 2013022614390931-40104 ; Tue, 26 Feb 2013 14:39:09 +0100 In-Reply-To: <512B4DF0.8040907@isoc.org> References: <512B4DF0.8040907@isoc.org> To: odonoghue@isoc.org MIME-Version: 1.0 X-KeepSent: C11C13CD:ACE7569A-C1257B1E:004AEFFE; type=4; flags=0; name=$KeepSent X-Mailer: Lotus Notes Release 8.5.3FP3 November 15, 2012 Message-ID: From: dieter.sibold@ptb.de Date: Tue, 26 Feb 2013 14:39:06 +0100 X-MIMETrack: S/MIME Sign by Notes Client on Dieter Sibold/PTB(Release 8.5.3FP3|November 15, 2012) at 26.02.2013 14:39:08, Serialize by Notes Client on Dieter Sibold/PTB(Release 8.5.3FP3|November 15, 2012) at 26.02.2013 14:39:08, Serialize complete at 26.02.2013 14:39:08, Itemize by Notes Client on Dieter Sibold/PTB(Release 8.5.3FP3|November 15, 2012) at 26.02.2013 14:39:09, S/MIME Sign complete at 26.02.2013 14:39:09, Serialize by Router on ROSE/PTB(Release 8.5.3FP3|November 15, 2012) at 02/26/2013 14:39:08, Serialize complete at 02/26/2013 14:39:08, Itemize by SMTP Server on TULPE/PTB(Release 8.5.3FP3|November 15, 2012) at 02/26/2013 14:39:09, Serialize by Router on TULPE/PTB(Release 8.5.3FP3|November 15, 2012) at 02/26/2013 14:39:10, Serialize complete at 02/26/2013 14:39:10 X-SA-Exim-Connect-IP: 194.94.94.141 X-SA-Exim-Rcpt-To: ntpwg-bounces+dieter.sibold=ptb.de@lists.ntp.org, ntpwg@lists.ntp.org X-SA-Exim-Mail-From: dieter.sibold@ptb.de X-SA-Exim-Version: 4.2 X-SA-Exim-Scanned: Yes (on mail1.ntp.org) Cc: NTP Working Group , "tictoc@ietf.org" , ntpwg-bounces+dieter.sibold=ptb.de@lists.ntp.org Subject: Re: [ntpwg] TICTOC WGLC of draft-ietf-tictoc-security-requirements X-BeenThere: ntpwg@lists.ntp.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: IETF Working Group for Network Time Protocol List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============2205103458395684876==" Errors-To: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org Sender: ntpwg-bounces+ntp-archives-ahfae6za=lists.ietf.org@lists.ntp.org This is an S/MIME signed message. --===============2205103458395684876== Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary=-------z11844_boundary_sign This is an S/MIME signed message. ---------z11844_boundary_sign Content-Type: text/plain; charset="US-ASCII" I recommend advancing this document. Dieter ---------------------------------- Physikalisch-Technische Bundesanstalt Q.42 - Server Administration Dr. Dieter Sibold Bundesallee 100 D-38116 Braunschweig Tel: +49-531-592-84 20 Mobile E-Mail: dieter.sibold@ptb.de Von: Karen O'Donoghue An: "tictoc@ietf.org" , NTP Working Group , Datum: 25.02.2013 12:41 Betreff: [ntpwg] TICTOC WGLC of draft-ietf-tictoc-security-requirements Gesendet von: ntpwg-bounces+dieter.sibold=ptb.de@lists.ntp.org This message initiates a two week TICTOC Working Group Last Call on advancing: Title : Security Requirements of Time Synchronization Protocols in Packet Switched Networks Author(s) : Tal Mizrahi Filename : draft-ietf-tictoc-security-requirements-04.txt Pages : 32 Date : 2013-02-07 http://datatracker.ietf.org/doc/draft-ietf-tictoc-security-requirements/ as an Informational RFC. Substantive comments and statements of support for advancing this document should be directed to the mailing list. Editorial suggestions can be sent directly to the authors. This last call will end on 12 March 2013. I realize this WGLC comes right before the IETF; however, this document has been around for a long time, and it is my hope that this can be done expeditiously. Regards, Karen Abstract: As time synchronization protocols are becoming increasingly common and widely deployed, concern about their exposure to various security threats is increasing. This document defines a set of security requirements for time synchronization protocols, focusing on the Precision Time Protocol (PTP) and the Network Time Protocol (NTP). This document also discusses the security impacts of time synchronization protocol practices, the time synchronization performance implications of external security practices, the dependencies between other security services and time synchronization. _______________________________________________ ntpwg mailing list ntpwg@lists.ntp.org http://lists.ntp.org/listinfo/ntpwg ---------z11844_boundary_sign Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIImgAIBATELMAkGBSsOAwIaBQAwCwYJKoZIhvcNAQcBoIIjkjCCA58w ggKHoAMCAQICASYwDQYJKoZIhvcNAQEFBQAwcTELMAkGA1UEBhMCREUxHDAaBgNVBAoTE0RldXRz Y2hlIFRlbGVrb20gQUcxHzAdBgNVBAsTFlQtVGVsZVNlYyBUcnVzdCBDZW50ZXIxIzAhBgNVBAMT GkRldXRzY2hlIFRlbGVrb20gUm9vdCBDQSAyMB4XDTk5MDcwOTEyMTEwMFoXDTE5MDcwOTIzNTkw MFowcTELMAkGA1UEBhMCREUxHDAaBgNVBAoTE0RldXRzY2hlIFRlbGVrb20gQUcxHzAdBgNVBAsT 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