Rocksolid Light

Welcome to novaBBS (click a section below)

mail  files  register  newsreader  groups  login

Message-ID:  

"One lawyer can steal more than a hundred men with guns." -- The Godfather


devel / comp.protocols.kerberos / Re: RFC 4121 & acceptor subkey use in MIC token generation

SubjectAuthor
o Re: RFC 4121 & acceptor subkey use in MIC token generationKen Hornstein

1
Re: RFC 4121 & acceptor subkey use in MIC token generation

<mailman.20.1698342135.2263420.kerberos@mit.edu>

  copy mid

https://www.novabbs.com/devel/article-flat.php?id=396&group=comp.protocols.kerberos#396

  copy link   Newsgroups: comp.protocols.kerberos
Path: i2pn2.org!i2pn.org!weretis.net!feeder6.news.weretis.net!tncsrv06.tnetconsulting.net!.POSTED.mailman.mit.edu!not-for-mail
From: ken...@cmf.nrl.navy.mil (Ken Hornstein)
Newsgroups: comp.protocols.kerberos
Subject: Re: RFC 4121 & acceptor subkey use in MIC token generation
Date: Thu, 26 Oct 2023 13:41:42 -0400
Organization: TNet Consulting
Lines: 13
Message-ID: <mailman.20.1698342135.2263420.kerberos@mit.edu>
References: <202310241950.39OJoa0Z000708@hedwig.cmf.nrl.navy.mil>
<3db2752e-565e-1f64-b354-9031a2fe9334@mit.edu> <ZTiT0ub2uv5A/b4E@ubby21>
<202310251251.39PCpTqc026799@hedwig.cmf.nrl.navy.mil>
<ZTk62q0DIAZmW0eL@ubby21>
<CALF+FNwtDrQ0d+a=zsXyiYq6rhOiXXkqoxUnscwum0Q0wchLJQ@mail.gmail.com>
<202310261741.39QHfgIl030099@hedwig.cmf.nrl.navy.mil>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Injection-Info: tncsrv06.tnetconsulting.net; posting-host="mailman.mit.edu:18.7.21.50";
logging-data="12971"; mail-complaints-to="newsmaster@tnetconsulting.net"
Cc: <kerberos@mit.edu>
To: Jeffrey Hutzelman <jhutz@cmu.edu>
DKIM-Filter: OpenDKIM Filter v2.11.0 unknown-host (unknown-jobid)
Authentication-Results: mailman.mit.edu;
dkim=pass (1024-bit key, unprotected) header.d=mitprod.onmicrosoft.com
header.i=@mitprod.onmicrosoft.com header.a=rsa-sha256
header.s=selector2-mitprod-onmicrosoft-com header.b=SNUIbJkT;
dkim=pass (2048-bit key,
unprotected) header.d=nrl.navy.mil header.i=@nrl.navy.mil header.a=rsa-sha256
header.s=s2.dkim header.b=ibAURBQi
Authentication-Results: mit.edu; dmarc=pass (p=reject dis=none)
header.from=cmf.nrl.navy.mil
Authentication-Results: mit.edu; arc=pass smtp.remote-ip=18.7.73.16
ARC-Seal: i=2; a=rsa-sha256; d=mit.edu; s=arc; t=1698342133; cv=pass;
b=k8xx7LCwaRRYIjQUsRCeoZQiCZBkTyTGWcI8kSAJtkPmCi5WxfFWrGGV1TwfwzdEwaLomK0IwoDDRmEJBQ9Mjs1wEut1jdCH7rg/WvOkbwMtyEP8IDCWZeNd02uOE7B9nNelZljPMD1ySel0efXcP61hF6RRPc+bL9RxXQaJqlWHY1+hHUOgYqlgBIKnV1X48HvsCwQ80BdIQDCq/nxwxOKnyWizBv/hEz7TH+Y2cFyywMYDSqd1IIIOjnijcZuv2j7eYIlLGvx5TcKG1v/sFOxfxoXU2LvuhXZxb1Q9xw32Yvw9uX35kBkGGpH6jChoTORVKwd6qlGf/3vFzqCZxA==
ARC-Message-Signature: i=2; a=rsa-sha256; d=mit.edu; s=arc; t=1698342133;
c=relaxed/relaxed; bh=kvsgdGBRiBooqNFqAYMliRvL0ALnlDIOLLKyS/xMo94=;
h=Message-ID:From:Subject:MIME-Version:Content-Type:Date;
b=wSS65LXNsVmWQuJI8gvY6Lz8pw7iMknzC1daYDpdzqfsFRIPHl+b982uujhmnnhJdlUdWNfJ7+A3KG1m3uZ/tlIfWBDjzr7epqjpNnVVFuEMPQzUQLp3rTQUX114a52gOWdbnuW7pDa8VAi1vA+bKX+eMvN1SiuyAeSNRxH8/Ujy2+0GE8pJhfq95syXmc+P1NwBouuYGcBSfSjg9lZnCq1Kmk233rYU4fCUKzWghWs/pSw29yQ9QhewM9lLf1r3NBV7+ekTdkwdNji3qJdEPp8sTB6AFWaswnIwJ/O7APDdHjjrgKt7fIHux7+pA+R52t0edrqJfGxaKus/XUhKlg==
ARC-Authentication-Results: i=2; mit.edu; dkim=pass (1024-bit key;
unprotected) header.d=mitprod.onmicrosoft.com
header.i=@mitprod.onmicrosoft.com header.a=rsa-sha256
header.s=selector2-mitprod-onmicrosoft-com header.b=SNUIbJkT;
dkim=pass (2048-bit key;
unprotected) header.d=nrl.navy.mil header.i=@nrl.navy.mil header.a=rsa-sha256
header.s=s2.dkim header.b=ibAURBQi
Authentication-Results: mit.edu; dkim=pass (1024-bit key;
unprotected) header.d=mitprod.onmicrosoft.com
header.i=@mitprod.onmicrosoft.com header.a=rsa-sha256
header.s=selector2-mitprod-onmicrosoft-com header.b=SNUIbJkT;
dkim=pass (2048-bit key;
unprotected) header.d=nrl.navy.mil header.i=@nrl.navy.mil header.a=rsa-sha256
header.s=s2.dkim header.b=ibAURBQi
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none;
b=XmoArRXxceS4daMwkHUD214Bop1capkkVGiw1qkvR8fmLZGI7arNIuRrSXoThWtAXXxyjMYD4AdVdiJdRU7vHj9BgMNYH6zi0qw43XxckRP3qdJlLgrxiDcLwi3XOf+/xklxlKz6b+G9q6O0Mw+xXB3dzgbY2OvPM2VvGXdATuuB1xJtZDvFMpPnAtii2h5jNd8gL00Z6FzqN2YuOAj0CVJmR+6zWjWF4tDkM5NtBDSydx4eJkvW0I1F9jH9ndtvVyfScVElUQkRmkrgq0LNSozxUqsmmRf5HmYoayBiW1AZK/O+jXn1i4FWSxfWdje/dL088KwCmWXPDPu3tm3OoA==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com;
s=arcselector9901;
h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1;
bh=kvsgdGBRiBooqNFqAYMliRvL0ALnlDIOLLKyS/xMo94=;
b=VW4jSocUZOKF7CsJfCUKMAjev3rxCgnV2vChGsC3EP75jGgHKaLtjf5JMp0V4LPJs+Sj5cxCBEPOHQzL1NTGfOCDxLSzh3sm7uRbxPNQNCohNNE1mb5dk9jzRCB1YlLvnvPgyjO4RH6XTIcpqdWXU+1xeknFSTxpuPeme/MKBNT72l4TuUeKzndto9McOl10EkMp0dU4K3R2F4aUmd3otXjBADfdrRKE5WUeXx+3ji+g5ez1EMOv4J2V85XKx/tGEg7FLUUYh8EztEhGyGHH5C9Xf/vVKnU0Xr6qOpIILqAlsA6x4gnEvzEArGNreUGsT5RYTMPkQstLMraoqBeocQ==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is
140.32.61.234) smtp.rcpttodomain=mit.edu smtp.mailfrom=cmf.nrl.navy.mil;
dmarc=pass (p=reject sp=reject pct=100) action=none
header.from=cmf.nrl.navy.mil; dkim=pass (signature was verified)
header.d=nrl.navy.mil; arc=none (0)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=mitprod.onmicrosoft.com; s=selector2-mitprod-onmicrosoft-com;
h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;
bh=kvsgdGBRiBooqNFqAYMliRvL0ALnlDIOLLKyS/xMo94=;
b=SNUIbJkToXBs+QczoSHY9IdNLkPIKJm13n42lPZKvbrZBabApmAWZ9brpehjFAahECvcslWpmmMm3nkHuM90Z9JdlRouYQXczi6MsIQAGlksKCg3exwNtVPaHQB9fvxEvL2aiQtCZ892ePbEaxY3BhKADtT6ZQHYLGYcklkMjVs=
Authentication-Results: spf=pass (sender IP is 140.32.61.234)
smtp.mailfrom=cmf.nrl.navy.mil; dkim=pass (signature was verified)
header.d=nrl.navy.mil;dmarc=pass action=none header.from=cmf.nrl.navy.mil;
Received-SPF: Pass (protection.outlook.com: domain of cmf.nrl.navy.mil
designates 140.32.61.234 as permitted sender)
receiver=protection.outlook.com; client-ip=140.32.61.234; helo=mf.dren.mil;
pr=C
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nrl.navy.mil;
h=message-id : from :
to : cc : subject : in-reply-to : references : mime-version : content-type
: date; s=s2.dkim; bh=kvsgdGBRiBooqNFqAYMliRvL0ALnlDIOLLKyS/xMo94=;
b=ibAURBQi5NTaSXD0TnJSwz6JsYza8SY99hD3eyCCMQ3bd+sB05CkpHWndU/eIa0RatnO
CV+Gz5+MOo0Lu1nWjB5262hP4XIY8s7uox5rjbxsJkZgsilDinnIqEnmCrOyLqLtG627
zKwufXc/MZRlTETDpW5fQub4uh2Ct6+u4cykrp5U2LjrxhZ/pLsVi528OV8fn5IeFg5T
89rp+SZYtVQY31NGXdLLSOnP5BoHYOCr0qbrQ5aGTxyBed62P6atYAEZgLFRkOa9LC9X
+e95N7xyH5+9kB6QQ+0JrEjz2fYkpd5uhCbztazQQi2hx0dpRJsX1/D8fgIKeep9pfU0 Ow==
In-Reply-To: <CALF+FNwtDrQ0d+a=zsXyiYq6rhOiXXkqoxUnscwum0Q0wchLJQ@mail.gmail.com>
X-Face: "Evs"_GpJ]],xS)b$T2#V&{KfP_i2`TlPrY$Iv9+TQ!6+`~+l)#7I)0xr1>4hfd{#0B4
WIn3jU;bql;{2Uq%zw5bF4?%F&&j8@KaT?#vBGk}u07<+6/`.F-3_GA@6Bq5gN9\+s;_d
gD\SW #]iN_U0 KUmOR.P<|um5yP<ea#^"SJK;C*}fMI;Mv(aiO2z~9n.w?@\>kEpSD@*e`
X-NRLCMF-Spam-Score: () hits=0 User Authenticated
X-NRLCMF-Virus-Scanned:
X-EOPAttributedMessage: 0
X-EOPTenantAttributedMessage: 64afd9ba-0ecf-4acf-bc36-935f6235ba8b:0
X-MS-PublicTrafficType: Email
X-MS-TrafficTypeDiagnostic: CO1PEPF000044F9:EE_|SA1PR01MB7357:EE_
X-MS-Office365-Filtering-Correlation-Id: daa3e020-39b8-4e2c-7a2d-08dbd64ad424
X-LD-Processed: 64afd9ba-0ecf-4acf-bc36-935f6235ba8b,ExtAddr
X-MS-Exchange-AtpMessageProperties: SA
X-MS-Exchange-SenderADCheck: 0
X-MS-Exchange-AntiSpam-Relay: 0
X-Microsoft-Antispam: BCL:0;
X-Microsoft-Antispam-Message-Info: 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
X-Forefront-Antispam-Report: CIP:140.32.61.234; CTRY:US; LANG:en; SCL:1; SRV:;
IPV:NLI; SFV:NSPM; H:mf.dren.mil; PTR:mfw.dren.mil; CAT:NONE;
SFS:(13230031)(4636009)(396003)(376002)(136003)(39860400002)(346002)(61400799006)(64100799003)(451199024)(48200799006)(68406010)(786003)(316002)(1076003)(26005)(498600001)(6862004)(4326008)(4744005)(8676002)(70586007)(5660300002)(2906002)(83380400001)(956004)(336012)(426003)(356005)(7636003)(86362001);
DIR:OUT; SFP:1102;
X-Auto-Response-Suppress: DR, OOF, AutoReply
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Oct 2023 17:41:47.6422 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: daa3e020-39b8-4e2c-7a2d-08dbd64ad424
X-MS-Exchange-CrossTenant-Id: 64afd9ba-0ecf-4acf-bc36-935f6235ba8b
X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000044F9.namprd21.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Anonymous
X-MS-Exchange-CrossTenant-FromEntityHeader: Internet
X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR01MB7357
X-OriginatorOrg: mitprod.onmicrosoft.com
X-BeenThere: kerberos@mit.edu
X-Mailman-Version: 2.1.34
Precedence: list
List-Id: The Kerberos Authentication System Mailing List <kerberos.mit.edu>
List-Unsubscribe: <https://mailman.mit.edu/mailman/options/kerberos>,
<mailto:kerberos-request@mit.edu?subject=unsubscribe>
List-Archive: <http://mailman.mit.edu/pipermail/kerberos/>
List-Post: <mailto:kerberos@mit.edu>
List-Help: <mailto:kerberos-request@mit.edu?subject=help>
List-Subscribe: <https://mailman.mit.edu/mailman/listinfo/kerberos>,
<mailto:kerberos-request@mit.edu?subject=subscribe>
X-Mailman-Original-Message-ID: <202310261741.39QHfgIl030099@hedwig.cmf.nrl.navy.mil>
X-Mailman-Original-References: <202310241950.39OJoa0Z000708@hedwig.cmf.nrl.navy.mil>
<3db2752e-565e-1f64-b354-9031a2fe9334@mit.edu> <ZTiT0ub2uv5A/b4E@ubby21>
<202310251251.39PCpTqc026799@hedwig.cmf.nrl.navy.mil>
<ZTk62q0DIAZmW0eL@ubby21>
<CALF+FNwtDrQ0d+a=zsXyiYq6rhOiXXkqoxUnscwum0Q0wchLJQ@mail.gmail.com>
 by: Ken Hornstein - Thu, 26 Oct 2023 17:41 UTC

>Yeah; IIRC that was to allow cases where the initiator would send the first
>context token in the same packet/message with early data, such as a MIC
>binding the exchange to some channel. In retrospect, perhaps it has caused
>more trouble than it was worth. We didn't use this in RFC 4462 userauth,
>which doesn't use mutual anyway.

As a side note, my impression is that gss-keyex has fallen out of favor,
and at least for us part of the problem is the unfortunate decision
to use MD5 in that protocol. You and I both know that the use of MD5
in there isn't security related, but if you live in a FIPS world
then any use of MD5 is a "challenge".

--Ken

1
server_pubkey.txt

rocksolid light 0.9.8
clearnet tor