Re: [kitten] Clarification of gss_add_cred() behavior

Nico Williams <nico@cryptonector.com> Thu, 19 March 2015 19:16 UTC

Return-Path: <nico@cryptonector.com>
X-Original-To: kitten@ietfa.amsl.com
Delivered-To: kitten@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 520541A8835 for <kitten@ietfa.amsl.com>; Thu, 19 Mar 2015 12:16:53 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.666
X-Spam-Level:
X-Spam-Status: No, score=-1.666 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, IP_NOT_FRIENDLY=0.334, RCVD_IN_DNSWL_NONE=-0.0001] autolearn=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 3X424KPJZjR8 for <kitten@ietfa.amsl.com>; Thu, 19 Mar 2015 12:16:52 -0700 (PDT)
Received: from homiemail-a77.g.dreamhost.com (sub4.mail.dreamhost.com [69.163.253.135]) by ietfa.amsl.com (Postfix) with ESMTP id E64751A8840 for <kitten@ietf.org>; Thu, 19 Mar 2015 12:16:50 -0700 (PDT)
Received: from homiemail-a77.g.dreamhost.com (localhost [127.0.0.1]) by homiemail-a77.g.dreamhost.com (Postfix) with ESMTP id B6D68940AF; Thu, 19 Mar 2015 12:16:50 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=cryptonector.com; h=date :from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=cryptonector.com; bh=b8eU5kUO4YMWDe mVQj3/IS0/X48=; b=xotXo+iYrqiYrupSlN0HYZqi7bQMdyvdHir+Q9RrDBa91w Vef/v98ddkKYDQ1n/jmFeCHw1AnWd81OfMmazS/9sGepnC6OHcSSIXDpQ8hO+NUw jtidcixs59nClzRAHHpQtBno5q4/kXacZjNA1IRWjXZkUTpSkQLDbnUlQZefo=
Received: from localhost (108-207-244-174.lightspeed.austtx.sbcglobal.net [108.207.244.174]) (Authenticated sender: nico@cryptonector.com) by homiemail-a77.g.dreamhost.com (Postfix) with ESMTPA id 0E1C19409B; Thu, 19 Mar 2015 12:16:49 -0700 (PDT)
Date: Thu, 19 Mar 2015 14:16:41 -0500
From: Nico Williams <nico@cryptonector.com>
To: Benjamin Kaduk <kaduk@MIT.EDU>
Message-ID: <20150319191640.GK8099@localhost>
References: <20150319025202.GB8099@localhost> <alpine.GSO.1.10.1503191446260.3953@multics.mit.edu>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Disposition: inline
In-Reply-To: <alpine.GSO.1.10.1503191446260.3953@multics.mit.edu>
User-Agent: Mutt/1.5.21 (2010-09-15)
Archived-At: <http://mailarchive.ietf.org/arch/msg/kitten/La7jVueeAiewxS0TtPLwcXU837A>
Cc: kitten@ietf.org
Subject: Re: [kitten] Clarification of gss_add_cred() behavior
X-BeenThere: kitten@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: Common Authentication Technologies - Next Generation <kitten.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/kitten>, <mailto:kitten-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/kitten/>
List-Post: <mailto:kitten@ietf.org>
List-Help: <mailto:kitten-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/kitten>, <mailto:kitten-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 19 Mar 2015 19:16:53 -0000

On Thu, Mar 19, 2015 at 02:48:44PM -0400, Benjamin Kaduk wrote:
> But a GSS credential can only represent a single identity ("entity", see
> 1.1.1.1)!  Identities are represented by (non-mechanism) names, so it is
> not clear to me that this is a drafting error.  If you know what name you
> want credentials for, you should use it.

That's not what this is about.  I'm not asking for multiple elements for
the same mech but different desired_names.

The problem is the spec effectivel says that when input_cred_handle ==
GSS_C_NO_CREDENTIAL then desired_name is ignored.  This seems like a
mistake.

Nico
--