[Tm-rid] Making progress to the TMRID charter

["Eric Vyncke (evyncke)" <[e-mail]>]

There was some discussions among the IESG, IAB and TM-RID BoF chairs about the charter during today IESG telechat. The latest version is below but we need to wait until Monday when Magnus will have time to review it and probably clear his BLOCK (Ben has promised to have a look at the revised draft before our interim meeting).

Let’s discuss it later today.

-éric

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Civil Aviation Authorities (CAAs) worldwide have initiated rule making for Unmanned Aircraft Systems (UAS) Remote Identification (RID). CAAs currently promulgate performance-based regulations that do not mandate specific techniques, but rather cite industry-consensus technical standards as acceptable means of compliance. One key standard is ASTM (formerly the American Society for Testing and Materials) WK65041 [1]. This specification defines the baseline design, construction, and verification requirements for an UAS. Network RID defines a set of information for UAS to make available globally via the Internet. Broadcast RID defines a set of messages for UAS to send locally one-way over Bluetooth or Wi-Fi. But WK65041 does not address how to populate/query registries, how to ensure trustworthiness of information, nor how to make the information useful.

TMRID’s goal is to specify how RID can be made available in both Internet and local-only connected scenarios, especially in emergency situations. Some UAS operate in environments where the network or the devices or both are severely constrained [2] in terms of processing, bandwidth (e.g., Bluetooth 4 packet is 21 byte long), or battery life, and TMRID aims to function in these environments. The specifications produced by the WG will need to balance public safety authorities’ need to know trustworthy information with UAS operators’ privacy.

The working group will primarily leverage Internet standards (including HIP, EPP, RDAP and DNS) and infrastructure as well as domain name registration business models. The WG will track the requirements being developed by regulatory authorities including the US Federal Aviation Administration (US FAA) and the European Union Civil Aviation Authority CAA) and will aim to align with those requirements (e.g., [3]).

The working group will work on the following items:
* Requirements: The WG is expected to provide an information document that lists the requirements the UAS Remote Identification (UAS RID) - that is the system for identifying UA during flight by other parties must meet. Requirements will also include those associated to the UAS Identifier that need to both meet some constraints as well as some specific properties.
* Architecture: The WG will propose a standard document that describes the architecture that address the requirements and that will re-use protocols or architectures already standardized at the IETF.
* Protocol design: While the primary purpose of TM-RID WG is to leverage on existing protocols, the specificities of the UAS environment is likely to require existing protocols to be extended or new protocols to be designed. The WG will be focused on standardizing this protocols or extensions.

List of candidate drafts:
- draft-card-tmrid-uas-reqs
- draft-card-tmrid-uas-arch
- draft-wiethuechter-tmrid-auth
- draft-moskowitz-hip-new-crypto
- draft-moskowitz-orchid-cshake
- draft-moskowitz-hip-hierarchical-hit
- draft-moskowitz-hip-hhit-registries

References:
[1] ASTM International F38 Committee Work Item WK65041 “Standard Specification for UAS Remote ID and Tracking” https://www.astm.org/DATABASE.CART/WORKITEMS/WK65041.htm
[2] UAS Identification and Tracking Aviation Rulemaking Committee Recommendations Final Report 2017 SEP 30 https://www.faa.gov/regulations_policies/rulemaking/committees/documents/media/UAS%20ID%20ARC%20Final%20Report%20with%20Appendices.pdf
[3] https://www.federalregister.gov/documents/2019/12/31/2019-28100/remote-identification-of-unmanned-aircraft-systems
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