Re: [radext] I-D Action: draft-ietf-radext-tls-psk-01.txt

Fabian Mauchle <fabian.mauchle@switch.ch> Thu, 10 August 2023 07:13 UTC

Return-Path: <fabian.mauchle@switch.ch>
X-Original-To: radext@ietfa.amsl.com
Delivered-To: radext@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 947A7C151082 for <radext@ietfa.amsl.com>; Thu, 10 Aug 2023 00:13:08 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.107
X-Spam-Level:
X-Spam-Status: No, score=-2.107 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_DBL_BLOCKED_OPENDNS=0.001, URIBL_ZEN_BLOCKED_OPENDNS=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=switch.ch
Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id hKtex6ElvdhS for <radext@ietfa.amsl.com>; Thu, 10 Aug 2023 00:13:04 -0700 (PDT)
Received: from mx4.switch.ch (mx4.switch.ch [85.235.88.35]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 37BA1C151071 for <radext@ietf.org>; Thu, 10 Aug 2023 00:13:03 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=switch.ch; l=1458; s=selector1; t=1691651585; h=message-id:date:mime-version:subject:to:references:from: in-reply-to:content-transfer-encoding; bh=zFcV4z2vw8YFuUsYYk8H9WJWHU20XAuMFup2LuZDFSA=; b=Igb5shx0a79i/OEORQuYQTt5Oq14iut1sA7VYNEn+VzkaPbqHLC5XMOt 5oRj/tJXdURk7O9G6eyM3Y7fyRHry+MLiFEIRR5ENe3oS/1/9xEAZEG46 xZsb5i5EVO+nDVzv+YcmitFP5ac/KYv1/7hoahSY/VXj3hPF1yiTw/tfk T/wpFrTaQgh1o4Pj6CYqOBAwSHlcjhOhTB2cw30/B0UUacB66tSYUCczc X/5sUDnNIiqaSRnleDzsvwCylFISUKaRoGFTx5HkHKCCmzw4VLii/2vQO zAChjVx6kxFEAiwyx1uE0i8grmws1j5YqRYhCDBMUqQyrS3UrI6+jH9XK Q==;
X-IronPort-MAIL-FROM: fabian.mauchle@switch.ch
X-IronPort-RCPT-TO: radext@ietf.org
X-IronPort-AV: E=Sophos;i="6.01,161,1684792800"; d="scan'208";a="4261102"
Received: from unknown (HELO SWH-S02-EXC1.swd.switch.ch) ([172.16.60.11]) by mx4int.switch.ch with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Aug 2023 09:13:01 +0200
Received: from [130.59.17.106] (172.16.60.33) by SWH-S02-EXC1.swd.switch.ch (172.16.60.11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.30; Thu, 10 Aug 2023 09:13:00 +0200
Message-ID: <125a654e-7b9f-41f2-b56d-a2928ece020c@switch.ch>
Date: Thu, 10 Aug 2023 09:12:59 +0200
MIME-Version: 1.0
User-Agent: Mozilla Thunderbird
Content-Language: en-US, de-CH
To: radext@ietf.org
References: <169151650874.8889.17786705009619055833@ietfa.amsl.com>
From: Fabian Mauchle <fabian.mauchle@switch.ch>
In-Reply-To: <169151650874.8889.17786705009619055833@ietfa.amsl.com>
Content-Type: text/plain; charset="UTF-8"; format="flowed"
Content-Transfer-Encoding: 7bit
X-Originating-IP: [172.16.60.33]
X-ClientProxiedBy: SWH-S05-EXC3.swd.switch.ch (172.16.60.14) To SWH-S02-EXC1.swd.switch.ch (172.16.60.11)
Archived-At: <https://mailarchive.ietf.org/arch/msg/radext/0WPQLYYQj-4FdtRiMuYaTIq7niY>
Subject: Re: [radext] I-D Action: draft-ietf-radext-tls-psk-01.txt
X-BeenThere: radext@ietf.org
X-Mailman-Version: 2.1.39
Precedence: list
List-Id: RADIUS EXTensions working group discussion list <radext.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/radext>, <mailto:radext-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/radext/>
List-Post: <mailto:radext@ietf.org>
List-Help: <mailto:radext-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/radext>, <mailto:radext-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 10 Aug 2023 07:13:08 -0000

Hi All,

On 08.08.23 19:41, internet-drafts@ietf.org wrote:
> A New Internet-Draft is available from the on-line Internet-Drafts
> directories. This Internet-Draft is a work item of the RADIUS EXTensions
> (RADEXT) WG of the IETF.
> 
>     Title           : RADIUS and TLS-PSK
>     Author          : Alan DeKok
>     Filename        : draft-ietf-radext-tls-psk-01.txt
>     Pages           : 12
>     Date            : 2023-08-08

I've read new -01 and this looks quite good to me.

A few more cosmetic things:

* Section 4.1.1
The introductory sentence mentions both client and server, but the 
requirements list only states client. Just to avoid, confusion:

 > *  no shared secret is used for more than one RADIUS client or server
 > *  no PSK is used for more than one RADIUS client or server

* Section 6.1
 > This section describes current practices and mandates behavior for
 > servers which use TLS-PSK.
I think this sentence is out of place since section 6.1 describes the 
current practice, while section 6.2 (and 6.2.1) describes the mandates.

Since Section 6 already introduces this, just remove that one sentence.

* Section 6.2, paragraph 4
 > connections from a source network of 192.0.2/24
Use proper CIDR notation as per BCP122: 192.0.2.0/24

Regards,
Fabian

-- 
Fabian Mauchle, Network

SWITCH
Werdstrasse 2, P.O. Box, 8021 Zurich, Switzerland
Phone +41 44 268 15 30, direct +41 44 268 15 39