Re: [Rats] Location Claim

Henk Birkholz <henk.birkholz@sit.fraunhofer.de> Thu, 30 July 2020 09:24 UTC

Return-Path: <henk.birkholz@sit.fraunhofer.de>
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 12B513A0FF2 for <rats@ietfa.amsl.com>; Thu, 30 Jul 2020 02:24:02 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.9
X-Spam-Level:
X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, NICE_REPLY_A=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=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 fwbm2p1RkLAf for <rats@ietfa.amsl.com>; Thu, 30 Jul 2020 02:23:59 -0700 (PDT)
Received: from mail-edgeKA27.fraunhofer.de (mail-edgeka27.fraunhofer.de [153.96.1.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 0D79F3A0AE6 for <rats@ietf.org>; Thu, 30 Jul 2020 02:23:57 -0700 (PDT)
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: =?us-ascii?q?A2ESBgAbkSJf/xmnZsBgHQEBAQEJARI?= =?us-ascii?q?BBQUBQIFKAoF5gR6BMwqVQ5okgV4LCwEBAQEBAQEBAQYBARgLCgIEAQEChEo?= =?us-ascii?q?CgisBJDgTAhABAQYBAQEBAQYEAgKGRQxDARABgn6BAwEBAQEBAQEBAQEBAQE?= =?us-ascii?q?BAQEBAQEWAg02HjcSAQEdAQEBAQIBAQEwAQU2Ag4LCxguJzAGAQwGAgEBgyI?= =?us-ascii?q?BglwgBAuuHnSBNIVSg0CBOgaBOAGNDA+BTD+BEScPglo+glwBAYElBQESAU2?= =?us-ascii?q?FSgSPOYo4m20pB4FagQiBCAQLh0SLQoVWBQoegns2iRWEfwaOKZIfijOUbAI?= =?us-ascii?q?EAgkCFYFqgQtwTSRPgmlQFwINj0QBAoddhURyNwIGAQcBAQMJfIgYhmgBgRA?= =?us-ascii?q?BAQ?=
X-IPAS-Result: =?us-ascii?q?A2ESBgAbkSJf/xmnZsBgHQEBAQEJARIBBQUBQIFKAoF5g?= =?us-ascii?q?R6BMwqVQ5okgV4LCwEBAQEBAQEBAQYBARgLCgIEAQEChEoCgisBJDgTAhABA?= =?us-ascii?q?QYBAQEBAQYEAgKGRQxDARABgn6BAwEBAQEBAQEBAQEBAQEBAQEBAQEWAg02H?= =?us-ascii?q?jcSAQEdAQEBAQIBAQEwAQU2Ag4LCxguJzAGAQwGAgEBgyIBglwgBAuuHnSBN?= =?us-ascii?q?IVSg0CBOgaBOAGNDA+BTD+BEScPglo+glwBAYElBQESAU2FSgSPOYo4m20pB?= =?us-ascii?q?4FagQiBCAQLh0SLQoVWBQoegns2iRWEfwaOKZIfijOUbAIEAgkCFYFqgQtwT?= =?us-ascii?q?SRPgmlQFwINj0QBAoddhURyNwIGAQcBAQMJfIgYhmgBgRABAQ?=
X-IronPort-AV: E=Sophos;i="5.75,413,1589234400"; d="scan'208";a="23392742"
Received: from mail-mtadd25.fraunhofer.de ([192.102.167.25]) by mail-edgeKA27.fraunhofer.de with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jul 2020 11:23:55 +0200
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: =?us-ascii?q?A0C+BwC6kCJf/1lIDI1gHQEBAQEJARI?= =?us-ascii?q?BBQUBQIFKAoF5L28DVDAsCpVCmiSBaQsBAwEBAQEBBgEBGAsKAgQBAYRMAoI?= =?us-ascii?q?pAiQ4EwIQAQEFAQEBAgEGBG2FXAxDARABhRwBAQEDAQEBMAEFNgIOCwsYLic?= =?us-ascii?q?wBgEMBgIBAYMiAYJcJAuuJnSBNIVSg0CBOgaBOAGNDA+BTD+BEScPglo+glw?= =?us-ascii?q?BAYElBQESAU2FSgSPOYo4m20pB4FagQiBCAQLh0SLQoVWBQoegns2iRWEfwa?= =?us-ascii?q?OKZIfijOUbAIEAgkCFYFqI2dwTSRPgmlQFwINj0QBAoddhURBMTcCBgEHAQE?= =?us-ascii?q?DCXyIGIZoAYEQAQE?=
X-IronPort-AV: E=Sophos;i="5.75,413,1589234400"; d="scan'208";a="87271039"
Received: from mailext.sit.fraunhofer.de ([141.12.72.89]) by mail-mtaDD25.fraunhofer.de with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jul 2020 11:23:52 +0200
Received: from mail.sit.fraunhofer.de (mail.sit.fraunhofer.de [141.12.84.171]) by mailext.sit.fraunhofer.de (8.15.2/8.15.2/Debian-10) with ESMTPS id 06U9NpCb009712 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA256 bits=128 verify=NOT); Thu, 30 Jul 2020 11:23:51 +0200
Received: from [192.168.16.50] (79.206.156.41) by mail.sit.fraunhofer.de (141.12.84.171) with Microsoft SMTP Server (TLS) id 14.3.487.0; Thu, 30 Jul 2020 11:23:46 +0200
To: Hannes Tschofenig <Hannes.Tschofenig@arm.com>, "rats@ietf.org" <rats@ietf.org>
References: <AM0PR08MB3716DA44706969B86E1214DBFA710@AM0PR08MB3716.eurprd08.prod.outlook.com>
From: Henk Birkholz <henk.birkholz@sit.fraunhofer.de>
Message-ID: <cf42bedd-a94c-9b7b-20e9-899679df24c7@sit.fraunhofer.de>
Date: Thu, 30 Jul 2020 11:23:44 +0200
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0
MIME-Version: 1.0
In-Reply-To: <AM0PR08MB3716DA44706969B86E1214DBFA710@AM0PR08MB3716.eurprd08.prod.outlook.com>
Content-Type: text/plain; charset="windows-1252"; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 8bit
X-Originating-IP: [79.206.156.41]
Archived-At: <https://mailarchive.ietf.org/arch/msg/rats/OXZtuzpP7g8Js2GAtlh7MI4zKT0>
Subject: Re: [Rats] Location Claim
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: Thu, 30 Jul 2020 09:24:02 -0000

Hi all,

in general, you might also want to have a look at "The GeoJSON Format" 
(RFC7946) that is based on this work:

> https://geojson.org/geojson-spec

Viele Grüße,

Henk


On 30.07.20 11:00, Hannes Tschofenig wrote:
> Dear EAT draft authors,
> 
> I believe the location claim defined in the EAT spec can benefit from 
> further clarification.
> 
> I think you want to focus on systems that obtain location information 
> via a GPS receiver. Is this correct?
> 
>  From the short text I understand that you want to support a 2d point, a 
> 3d point, a circle (i.e. the point with a radius) and a sphere (the 3d 
> version of the circle).
> 
> (More about location shapes can be found in RFC 5491..)
> 
> If you also want to express uncertainty and confidence then you may want 
> to look at RFC 7459.
> 
> You are also interested to express dynamic location. You might want to 
> look at RFC 5962 and add orientation too. Dynamic location is obviously 
> pretty tricky in the context of an attestation based mechanism because 
> dynamic location, as the name indicates, changes frequently. In 
> location-based systems there is often the desire to express some time 
> series data or average the measured data over a certain timeframe.
> 
> I would recommend using the terms from the above-mentioned RFCs when it 
> comes to location because they have been again re-used from the OGC, the 
> Open Geospatial Consortium.
> 
> This would produce something like:
> 
>   * 2d Point: Lat/long
>   * 3d Point: lat/long/alt
>   * Circle: lat/long/radius
>   * Sphere: lat/long/alt/radius
>   * For dynamic location add speed, orientation, and heading to the
>     above shapes. 
> 
> Ciao
> 
> Hannes
> 
> IMPORTANT NOTICE: The contents of this email and any attachments are 
> confidential and may also be privileged. If you are not the intended 
> recipient, please notify the sender immediately and do not disclose the 
> contents to any other person, use it for any purpose, or store or copy 
> the information in any medium. Thank you.
> 
> _______________________________________________
> RATS mailing list
> RATS@ietf.org
> https://www.ietf.org/mailman/listinfo/rats
>