Re: [media-types] Review request for application/emergencyCallData.eCall.control+xml
Randall Gellens <rg+ietf@randy.pensive.org> Thu, 22 September 2016 17:07 UTC
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Date: Thu, 22 Sep 2016 10:02:04 -0700
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Subject: Re: [media-types] Review request for application/emergencyCallData.eCall.control+xml
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At 4:27 PM -0700 9/21/16, Randall Gellens wrote: > Hi all, > > ECRIT draft https://tools.ietf.org/html/draft-ietf-ecrit-ecall-12 > seeks to register a media type to carry the metadata/control > information for use during vehicle-initiated emergency calls. This > will be used by SIP-based systems vehicle-initiated emergency call > systems (both the eCall system mandated and standardized within the > European Union as well as systems in North America and elsewhere). > > The media registration is at > https://tools.ietf.org/html/draft-ietf-ecrit-ecall-12#page-32. Apologies for not including the verbatim text originally: MIME media type name: application MIME subtype name: emergencyCallData.eCall.control+xml Mandatory parameters: none Optional parameters: charset Indicates the character encoding of the XML content. Encoding considerations: Uses XML, which can employ 8-bit characters, depending on the character encoding used. See Section 3.2 of RFC 7303 [RFC7303]. Security considerations: This content type carries metadata and control information and requests, such as from a Public Safety Answering Point (PSAP) to an In-Vehicle System (IVS) during an emergency call. Metadata (such as an acknowledgment that data sent by the IVS to the PSAP was successfully received) has limited privacy and security implications. Control information (such as requests from the PSAP that the vehicle perform an action) has some privacy and security implications. The privacy concern arises from the ability to request the vehicle to transmit a data set, which as described in Section 15.2, can contain personal information. The security concern is the ability to request the vehicle to perform an action. Control information needs to originate only from a PSAP or other emergency services provider, and not be modified en-route. The level of integrity of the cellular network over which the emergency call is placed is a consideration: when the IVS initiates an eCall over a cellular network, in most cases it relies on the MNO to route the call to a PSAP. (Calls placed using other means, such as Wi-Fi or over-the-top services, generally incur somewhat higher levels of risk than calls placed "natively" using cellular networks.) A call-back from a PSAP merits additional consideration, since current mechanisms are not ideal for verifying that such a call is indeed a call-back from a PSAP in response to an emergency call placed by the IVS. See the discussion in Section 12 and the PSAP Callback document [RFC7090]. Sections 7 and Section 8 of [RFC7852] contain more discussion. Interoperability considerations: None Published specification: This document Applications which use this media type: Pan-European eCall compliant systems Additional information: None Magic Number: None File Extension: .xml Macintosh file type code: 'TEXT' Person and email address for further information: Randall Gellens, rg+ietf@randy.pensive.org Intended usage: LIMITED USE Author: The IETF ECRIT WG. Change controller: The IETF ECRIT WG. > > Thank you. > > -- > Randall Gellens > Opinions are personal; facts are suspect; I speak for myself only > -------------- Randomly selected tag: --------------- > Heuristics are bug ridden by definition. If they didn't have bugs, > then they'd be algorithms. -- Randall Gellens Opinions are personal; facts are suspect; I speak for myself only -------------- Randomly selected tag: --------------- The whole modern world has divided itself into Conservatives and Progressives. The business of the Progressives is to go on making mistakes. The business of the Conservatives is to prevent the mistakes from being corrected. --G.K. Chesterton
- [media-types] Review request for application/emer… Randall Gellens
- Re: [media-types] Review request for application/… Randall Gellens