Re: [Rats] Call for adoption (after draft rename) for Yang module draft

Michael Richardson <mcr+ietf@sandelman.ca> Wed, 13 November 2019 11:12 UTC

Return-Path: <mcr+ietf@sandelman.ca>
X-Original-To: rats@ietfa.amsl.com
Delivered-To: rats@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 4B9D21200CD for <rats@ietfa.amsl.com>; Wed, 13 Nov 2019 03:12:02 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.2
X-Spam-Level:
X-Spam-Status: No, score=-4.2 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=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 Ejf7CAh_WEq1 for <rats@ietfa.amsl.com>; Wed, 13 Nov 2019 03:12:00 -0800 (PST)
Received: from tuna.sandelman.ca (tuna.sandelman.ca [IPv6:2607:f0b0:f:3:216:3eff:fe7c:d1f3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 37D3A12003F for <rats@ietf.org>; Wed, 13 Nov 2019 03:11:59 -0800 (PST)
Received: from [192.168.41.2] (unknown [58.212.133.150]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by tuna.sandelman.ca (Postfix) with ESMTPSA id 622FC3897A for <rats@ietf.org>; Wed, 13 Nov 2019 06:08:52 -0500 (EST)
To: rats@ietf.org
References: <8B173958-FC2A-4D1D-A81C-F324AB632CD7@cisco.com> <147F9159-6055-4E55-ABDC-43DFE3498BF1@island-resort.com> <ce5f8206-74dc-36bb-0093-a93045d5c67f@sit.fraunhofer.de> <0A7E3A4F-8534-4E98-BCB7-1454E07699F4@island-resort.com> <C3AE2645-49C8-4313-BCED-02FEB576B614@cisco.com> <1C8A1884-A37D-45E3-8C11-2FC5A083B245@island-resort.com> <ba12a686-1b34-21a3-388c-bbe01c01a408@sandelman.ca> <4A83CDF5-D29F-4279-8B03-E9D23299EB53@island-resort.com> <0C6940B0-E93F-4274-9D00-DEC4119B8F69@island-resort.com> <3310947D-EA31-4107-8FF0-B917A027C955@intel.com> <20191111213249.4p7z2ovkvqy2u5go@anna.jacobs.jacobs-university.de> <3C967A22-DBB0-4EA7-923D-B423920EB9BD@intel.com> <0AACCF7B-36A9-4AF9-B18A-BF18DC35986E@island-resort.com> <a72c6bb0-0f96-3d25-0faf-d5a1fe92a2c8@sit.fraunhofer.de>
From: Michael Richardson <mcr+ietf@sandelman.ca>
Openpgp: preference=signencrypt
Autocrypt: addr=mcr@sandelman.ca; keydata= mQGNBF3EaO8BDADNdcAioLgGWFMLcmR6SuX1ioVH0v1fcprk0Wl1Qc7LCdwqj+QSdv84oNe1 h6lTf+CsmzO+TZtL+2iUzR3WHyXViEJcSHldx2YIfgxGZkzqgqozDj2IoHCU6ezhQz2TwJO7 l6H7fIPBbemIu8qVezwP1azLVq3D+cXZkkOvsFhTiw1bF/WF8lIIAYEbQ4YyYyjk5DS30x59 kxFNSv6om8rqSAKs2epneEWpzybB0J82dBnB4VDDsMmTJWPkszvQoCjCbrvgDAuoRtL5su2V IQWw61O6N5p1mwJ7VQoPDWYyeFH4NrVlL71FwRLueVPle76Oi3ybE2IMUvHZ/e42jVBizlQj 1N/2x7mGk35Zrvz0WHjZLcFJYJkDOnLsMU1smhdRtxNfYf576DTlzQKVcLmNCfOKAWnz4DdQ gRI4pNs24NoxLXl5v5mhDHRX5Me+CuckkFNGSlCXZ5kMXzPPFAV6CwMlm65P1tVJq9td8Uh0 5I5okPcENk5iY+FniqMXamsAEQEAAbQlTWljaGFlbCBSaWNoYXJkc29uIDxtY3JAc2FuZGVs bWFuLmNhPokB1AQTAQgAPhYhBKMP9ag1YAG1i9s8WHACrsLM2IBDBQJdxGjwAhsDBQkB4TOA BQsJCAcCBhUKCQgLAgQWAgMBAh4BAheAAAoJEHACrsLM2IBDeJ4MAMvUmQjFqXgsg4KhIWQb QBcgNPxrtp9jW/i2m//0zVA2iGxbeTOZD6cmcNDRj153TbSGTEH03oJIeYbdwlOCe5blA6h4 FTEBwt/qX+mjRYKXuA3uvFdEJQJPFcaWFF68rgQMxgLPPUAnTYQ00SqaBEg+Vh4gSh8yOHuU 8VTgenm4JpBdJQx7/7syvIaQilhN2fF25CcA7hArmebkaG691x+cFD60s8ITI9PSf82SVUnp mspJTGptxFxH/GM/kW40iB4tUjZrUSQfTfWIXA/5j005XbVbo1DIYirWWNK0WPVsh51ullzt u37BDVj/SmgbGhvTUXwsBi4b+T2cJHLt+8QT/KM8OA+UA8AlkNPleKtOzxsg5z22m0fzollE Zcw9VIojPKIhTUYU79InmibEUoGfb05MFJM9aXX5BMoJNpKcB92PKI/gMsrxMwH1exs0cY/E K/xYdpFo3rTPw5KSsDkr7ZbqGPgz+QP2H+TLwgLKMFTBlVKpj+oqBnqeEVVrC7kBjQRdxGjv AQwA0T5oxtsQkr3I3FxBi5TkNSh0HZ7ND5xJJkyM6wLAsljLk5KhdcxjTlo6htNjRUuUy1Ld 0bARmezZf5GqKRh6fR7WX9EdYjGm0RbcK3tQ3L61h4p3EOplKgMSoGpGamLSDzRs3SAJu4GF iHfzQ20R0PxBN/CbzWh6ROPcxQ8wwt8G4ZOwU4zXfSmZqZwNp/6xosLCl3TKvFWX6421Vb/L WAOOAz/xSyS0GCUs/grBUfzu95+TTskRk7kkeYSQ//1Oq9srPlIU9lx3Y4jDgPkXIwd9eXOq e7/5y4bQkILGGMIux878DhAED865hPMBuHlkDNzIuo6HhjRkShLBM16yQhK+NJ0WI77+m1FD 7r5QL6iU57zI/B5U03JKZhW0Pm3Bm+RWZPWGVawkPUnvxoMFbw+x1+MnKZgXwRmRmbFsCHhD VmrDKLWXRm9QvTB+k0ZnTdme9ZwSNCn0CXME2rNtOR39Yh6dsWH2nMPvg/G5iUmZyO9Oa01W xhWcXnKA+v+VABEBAAGJAbwEGAEIACYWIQSjD/WoNWABtYvbPFhwAq7CzNiAQwUCXcRo7wIb DAUJAeEzgAAKCRBwAq7CzNiAQwaOC/4olaVHP/npCn2CrtAOstbyytePFmS9NAwdT8A6mA4s +WshPo1DhKEnKnYzW/S0jLf0iqlzT8LUqu2G8f6elGzghRR8WJVn0zH7LVCKMWo/tHE2rWyi Q1zuX9o7ChTodQ8cXx0lM1xdY8v4Amc5fFxyyhJprKZAtiDJ897vv1jP09fWLEBhaDsHqLhg ckQpIoee0Id4FXGt7wxDsPwa64SUUCTYdt98EiLoUY6eAWQnyelgbFU+D/bxkeytmmvWOVr7 UXVMQlEKG7E31G1XQMk6sFATF1dwiH/laLQPLuMYr7owUC+ef/YAWSHMTYeIfwdt/Yd8ngJ8 SFA6Uc+Bjr0i1jdnxS5H3EF4V1FNY2rh4zNPVNj2UrZaShK/XH4hnTJUYL5fo2ygt2ZM98ot 8lIsHGAJQHDl2/EffLsAL85pXDPl8E+nvOUOE1kwmfOgv/oV8z0469qu/hNiEpGp8xKBqGEL NWHd8fH5S9JxVix9Ed34vi9Cyf24iLjiWZBemXw=
Message-ID: <489d5335-74be-9298-d48d-1051a90cbbda@sandelman.ca>
Date: Wed, 13 Nov 2019 19:11:55 +0800
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0
MIME-Version: 1.0
In-Reply-To: <a72c6bb0-0f96-3d25-0faf-d5a1fe92a2c8@sit.fraunhofer.de>
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Content-Language: en-US
Archived-At: <https://mailarchive.ietf.org/arch/msg/rats/WSqHpePr24Rsmrnodh7fVNEiyYM>
Subject: Re: [Rats] Call for adoption (after draft rename) for Yang module draft
X-BeenThere: rats@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Remote Attestation Procedures <rats.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/rats>, <mailto:rats-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/rats/>
List-Post: <mailto:rats@ietf.org>
List-Help: <mailto:rats-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/rats>, <mailto:rats-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 13 Nov 2019 11:12:02 -0000


On 2019-11-12 4:28 p.m., Henk Birkholz wrote:
> Hi Laurence,
>
> maybe I lack the required background knowledge about YANG here. My
> question is the following: Is it in-scope for a YANG modules (which
> typically have a well-defined semantic scope for each statement) to
> convey opaque EATs via a single statement. Or is it necessary to
> create YANG statements for each well-defined EAT Claim?

Mostly, i want to answer that: It's not a well formed question.
Yes, we can have a YANG leaf called "eat" that is of type binary, and
returns some serialization of a EAT.
But, I don't think it does anything at all useful.

Yes, we can define each claim type in terms of YANG (describing the data
in YANG types, so "uptime" would have some kind of interval value, and
boottime would have a date type), and then we could use YANG groupings
to build composite sets of claims that when serialized as a group, would
represent a single token.  We have to do this for each use case I
think.  So users of each use case would wind up with their own profile
document, and we'd probably share no code at all.
With care and a lot of fore-thought the result could be less destructive
than the disaster that
X500->509->509v3->PKIX->six-broken-profiles-for-specific-applications
has given us.  Less destructive in the way that hurricanes tend to be
less destructive than asteroid strikes.

I have no interest in going that way.