Re: [TLS] draft-rescorla-tls-subcerts

Benjamin Kaduk <bkaduk@akamai.com> Fri, 15 July 2016 18:47 UTC

Return-Path: <bkaduk@akamai.com>
X-Original-To: tls@ietfa.amsl.com
Delivered-To: tls@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1B8CF12D190 for <tls@ietfa.amsl.com>; Fri, 15 Jul 2016 11:47:03 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -3.988
X-Spam-Level:
X-Spam-Status: No, score=-3.988 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RP_MATCHES_RCVD=-1.287, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=akamai.com
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 ABsnuK5KH0lY for <tls@ietfa.amsl.com>; Fri, 15 Jul 2016 11:47:02 -0700 (PDT)
Received: from prod-mail-xrelay05.akamai.com (prod-mail-xrelay05.akamai.com [23.79.238.179]) by ietfa.amsl.com (Postfix) with ESMTP id E648212D15E for <tls@ietf.org>; Fri, 15 Jul 2016 11:47:01 -0700 (PDT)
Received: from prod-mail-xrelay05.akamai.com (localhost.localdomain [127.0.0.1]) by postfix.imss70 (Postfix) with ESMTP id 4FAC542377C; Fri, 15 Jul 2016 18:47:01 +0000 (GMT)
Received: from prod-mail-relay11.akamai.com (prod-mail-relay11.akamai.com [172.27.118.250]) by prod-mail-xrelay05.akamai.com (Postfix) with ESMTP id 2DB6942373D; Fri, 15 Jul 2016 18:47:01 +0000 (GMT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=akamai.com; s=a1; t=1468608421; bh=UhX4713aI3QmF3V/MGSq527zGGsAkqDEnj5Kid9g6/M=; l=477; h=To:References:Cc:From:Date:In-Reply-To:From; b=AT5ss79VMyQURsX32/0R+urZ4zFZFOlzksz+BClrIq35Ev/g1Ma0MKaCHDg+4jgxL 7moteAs298hOxtfiodvld6Ll7KqyUrnaeJaC7uew/KP6zvTfjab5aaRHy8Yw3iNAgB ZmKzq0dxsA6FA+MMUQlaN5hWC4/eV8EE8livwQ/8=
Received: from [172.19.0.25] (bos-lpczi.kendall.corp.akamai.com [172.19.0.25]) by prod-mail-relay11.akamai.com (Postfix) with ESMTP id E3B241FC95; Fri, 15 Jul 2016 18:47:00 +0000 (GMT)
To: Andrei Popov <Andrei.Popov@microsoft.com>
References: <CABcZeBP+6AP50L06knsnOmyMqbv3fFw6TrcSrqs0x9FgoxyKcw@mail.gmail.com> <CY1PR03MB21551F88A99C2CEF07548A2D8C330@CY1PR03MB2155.namprd03.prod.outlook.com> <20160715091423.GA6556@LK-Perkele-V2.elisa-laajakaista.fi> <CY1PR03MB2155E99C2DCB61AACCB2A4558C330@CY1PR03MB2155.namprd03.prod.outlook.com>
From: Benjamin Kaduk <bkaduk@akamai.com>
Message-ID: <57892FA4.4080607@akamai.com>
Date: Fri, 15 Jul 2016 13:47:00 -0500
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.8.0
MIME-Version: 1.0
In-Reply-To: <CY1PR03MB2155E99C2DCB61AACCB2A4558C330@CY1PR03MB2155.namprd03.prod.outlook.com>
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/6Z-kv7rrGMsNDPQq2rqcm8dPmhQ>
Cc: "tls@ietf.org" <tls@ietf.org>
Subject: Re: [TLS] draft-rescorla-tls-subcerts
X-BeenThere: tls@ietf.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: "This is the mailing list for the Transport Layer Security working group of the IETF." <tls.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/tls>, <mailto:tls-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/tls/>
List-Post: <mailto:tls@ietf.org>
List-Help: <mailto:tls-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/tls>, <mailto:tls-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 15 Jul 2016 18:47:03 -0000

On 07/15/2016 12:34 PM, Andrei Popov wrote:
>> The I-D actually covers this.
> Understood; the I-D lists a few cons, but arguably none of them are blocking issues. It seems unnecessary to create a new TLS-specific mechanism that duplicates existing PKI semantics.
>

I think the main justification is supposed to be that there's a big
impedance mismatch between the engineering reality of interacting with
PKI CAs and the engineering demands seen in the field.

-Ben