[certid] What DNS-ID if also using a DNS-SRV?

Paul Hoffman <paul.hoffman@vpnc.org> Sat, 12 June 2010 00:07 UTC

Return-Path: <paul.hoffman@vpnc.org>
X-Original-To: certid@core3.amsl.com
Delivered-To: certid@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id D48BF3A67A1 for <certid@core3.amsl.com>; Fri, 11 Jun 2010 17:07:52 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: 0.652
X-Spam-Level:
X-Spam-Status: No, score=0.652 tagged_above=-999 required=5 tests=[AWL=0.098, BAYES_50=0.001, HELO_MISMATCH_COM=0.553]
Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id k-U3MtUVRehT for <certid@core3.amsl.com>; Fri, 11 Jun 2010 17:07:52 -0700 (PDT)
Received: from hoffman.proper.com (Hoffman.Proper.COM [207.182.41.81]) by core3.amsl.com (Postfix) with ESMTP id A1CD83A67B1 for <certid@ietf.org>; Fri, 11 Jun 2010 17:07:52 -0700 (PDT)
Received: from [10.20.30.158] (75-101-30-90.dsl.dynamic.sonic.net [75.101.30.90]) (authenticated bits=0) by hoffman.proper.com (8.14.4/8.14.3) with ESMTP id o5C07rkp085429 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for <certid@ietf.org>; Fri, 11 Jun 2010 17:07:55 -0700 (MST) (envelope-from paul.hoffman@vpnc.org)
Mime-Version: 1.0
Message-Id: <p062408bbc8388055fb6d@[10.20.30.158]>
Date: Fri, 11 Jun 2010 17:07:50 -0700
To: certid@ietf.org
From: Paul Hoffman <paul.hoffman@vpnc.org>
Content-Type: text/plain; charset="us-ascii"
Subject: [certid] What DNS-ID if also using a DNS-SRV?
X-BeenThere: certid@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: Representation and verification of identity in certificates <certid.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/certid>, <mailto:certid-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/certid>
List-Post: <mailto:certid@ietf.org>
List-Help: <mailto:certid-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/certid>, <mailto:certid-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sat, 12 Jun 2010 00:07:52 -0000

   1.  The certificate MUST include a "DNS-ID" (i.e., a subjectAltName
       identifier of type dNSName).

   2.  If the service using the certificate deploys a technology in
       which a server is discovered by means of DNS SRV records
       [DNS-SRV] (e.g., this is true of [XMPP]), then the certificate
       SHOULD include an "SRV-ID" (i.e., an instance of the SRVName form
       of otherName from the GeneralName structure in the subjectAltName
       as specified in [SRVNAME]).

If 2 is true, what is the value of the required DNS-ID?

--Paul Hoffman, Director
--VPN Consortium