Re: [storm] iSCSI: Authentication mechanism reduction
Julian Satran <julian.satran@gmail.com> Sun, 23 May 2010 03:49 UTC
Return-Path: <julian.satran@gmail.com>
X-Original-To: storm@core3.amsl.com
Delivered-To: storm@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 46E723A69C2 for <storm@core3.amsl.com>; Sat, 22 May 2010 20:49:31 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.134
X-Spam-Level:
X-Spam-Status: No, score=-2.134 tagged_above=-999 required=5 tests=[AWL=0.465, BAYES_00=-2.599]
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 i1Jnk0rTO5Ux for <storm@core3.amsl.com>; Sat, 22 May 2010 20:49:30 -0700 (PDT)
Received: from fg-out-1718.google.com (fg-out-1718.google.com [72.14.220.159]) by core3.amsl.com (Postfix) with ESMTP id 06FEB3A69B7 for <storm@ietf.org>; Sat, 22 May 2010 20:49:29 -0700 (PDT)
Received: by fg-out-1718.google.com with SMTP id l26so1200065fgb.13 for <storm@ietf.org>; Sat, 22 May 2010 20:49:20 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from :user-agent:mime-version:to:cc:subject:references:in-reply-to :content-type:content-transfer-encoding; bh=RxasaiWJ9Zi3ZwO3wCbdCnyAOwihpHHOpcHwmtyykXI=; b=nrmtz6MZdwRQTKJX8KbWE8KXgzlcoaictaibSvdOLUbSjKC/f4pMrchNrt9MZbrxEq 5joLPfKsmw+CFJO2eUcvlmJV4dl8CkiTGSohAoaf6eUpuXCB/iScS3sHhseCk0bRAEh8 BwpWYwnKvxJMJ1svIV+AZxa5Ry9Y5ui76+Ptc=
DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=TV0+NN5cMe/KAKyYG8nGSjsg1s7setRy22Z5kktL9fAwt2mAFUTUSZEjLpY9oVlUbE zlj8o5B7uy5KA97ttVqH2+HUlFJUyD8N/1kJsMUACzFherDDASN146ASQCmlCXL9d7VF tCNlbU3GB+n2NaUD5x/ZmJcE6vIRpsMsfJUu0=
Received: by 10.86.239.33 with SMTP id m33mr6213870fgh.31.1274586559815; Sat, 22 May 2010 20:49:19 -0700 (PDT)
Received: from julo-mbp.home ([94.159.244.17]) by mx.google.com with ESMTPS id d13sm3784723fka.2.2010.05.22.20.49.17 (version=SSLv3 cipher=RC4-MD5); Sat, 22 May 2010 20:49:18 -0700 (PDT)
Message-ID: <4BF8A5BB.6030901@gmail.com>
Date: Sun, 23 May 2010 06:49:15 +0300
From: Julian Satran <julian.satran@gmail.com>
User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.5pre) Gecko/20100430 Thunderbird/3.1b2
MIME-Version: 1.0
To: Paul Koning <Paul_Koning@Dell.com>
References: <C2D311A6F086424F99E385949ECFEBCB02A28E2B@CORPUSMX80B.corp.emc.com> <4BF79C81.7020603@gmail.com> <D8CEBB6AE9D43848BD2220619A43F3265BD608@M31.equallogic.com>
In-Reply-To: <D8CEBB6AE9D43848BD2220619A43F3265BD608@M31.equallogic.com>
Content-Type: text/plain; charset="ISO-8859-1"; format="flowed"
Content-Transfer-Encoding: 7bit
Cc: Ofer Biran <biran@il.ibm.com>, storm@ietf.org
Subject: Re: [storm] iSCSI: Authentication mechanism reduction
X-BeenThere: storm@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: Storage Maintenance WG <storm.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/storm>, <mailto:storm-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/storm>
List-Post: <mailto:storm@ietf.org>
List-Help: <mailto:storm-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/storm>, <mailto:storm-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sun, 23 May 2010 03:49:31 -0000
Paul, There where patent concerns (none confirmed!) but SRP by far the authors preference (simplest, secure) and it would be a mistake to take it out. Enough to have it optional :-). At least we have an interoperable description. Julo On 22/05/10 19:17, Paul Koning wrote: > I agree about keeping Kerberos. > > If we're looking at pulling out stuff, how about yanking SRP? In spite > of its arguable technical superiority I believe patent concerns have, > and will, keep it from being used. > > paul > >> -----Original Message----- >> From: storm-bounces@ietf.org [mailto:storm-bounces@ietf.org] On Behalf >> Of Julian Satran >> Sent: Saturday, May 22, 2010 4:58 AM >> To: storm@ietf.org >> Cc: Ofer Biran >> Subject: Re: [storm] iSCSI: Authentication mechanism reduction >> >> >> Hm... Kerberos is widely deployed even if common iSCSI initiators > are >> not using it. >> Wouldn't it be wiser to "revive" the GSSAPI version and have it > replace >> the current wording. >> And it is certainly better than to be left with CHAP :-) (as the >> primary). >> >> Julo >> >> >> On 22/05/10 04:43, Black_David@emc.com wrote: >>> <WG chair hat off> >>> >>> I'd like to propose removal of a few authentication mechanisms. RFC >> 3720 currently specifies five authentication mechanisms: >>> - Kerberos (KRB5) >>> - Simple public key (SPKM1 and SPKM2) >>> - Secure Remote Password (SRP) >>> - Challenge Handshake (CHAP) >>> >>> To my knowledge, SPKM1 and SPKM2 have never been implemented and are >> not in use. KRB5 has been implemented, but my understanding is that > it >> is not in use, and I understand that the specific iSCSI usage of >> Kerberos isn't considered be the proverbial "right thing" to do > because >> it's not based on GSSAPI. There was an Internet-Draft on adding >> GSSAPI-based Kerberos authentication to iSCSI, but it's long since >> expired. >>> So, I would suggest removal of the KRB5, SPKM1 and SPKM2 methods > from >> the iSCSI consolidated draft with suitable reservation of the >> authentication method names and negotiation key prefixes (KRB_AP_, >> SPKM_) to prevent future reuse. >>> Thanks, >>> --David >>> ---------------------------------------------------- >>> David L. Black, Distinguished Engineer >>> EMC Corporation, 176 South St., Hopkinton, MA 01748 >>> +1 (508) 293-7953 FAX: +1 (508) 293-7786 >>> black_david@emc.com Mobile: +1 (978) 394-7754 >>> ---------------------------------------------------- >>> >>> _______________________________________________ >>> storm mailing list >>> storm@ietf.org >>> https://www.ietf.org/mailman/listinfo/storm >> _______________________________________________ >> storm mailing list >> storm@ietf.org >> https://www.ietf.org/mailman/listinfo/storm
- [storm] iSCSI: Authentication mechanism reduction Black_David
- Re: [storm] iSCSI: Authentication mechanism reduc… Julian Satran
- Re: [storm] iSCSI: Authentication mechanism reduc… Paul Koning
- Re: [storm] iSCSI: Authentication mechanism reduc… Julian Satran
- Re: [storm] iSCSI: Authentication mechanism reduc… david.black