DRIP Authentication Formats
draft-wiethuechter-drip-auth-04

Document Type Active Internet-Draft (individual)
Authors Adam Wiethuechter  , Stuart Card  , Robert Moskowitz 
Last updated 2020-09-21
Replaces draft-wiethuechter-tmrid-auth
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DRIP                                                     A. Wiethuechter
Internet-Draft                                                   S. Card
Intended status: Standards Track                           AX Enterprize
Expires: March 25, 2021                                     R. Moskowitz
                                                          HTT Consulting
                                                      September 21, 2020

                      DRIP Authentication Formats
                    draft-wiethuechter-drip-auth-04

Abstract

   This document describes how to include trust into the ASTM Remote ID
   specification defined in ASTM 3411-19 under a Broadcast Remote ID
   (RID) scenario.  It defines a few different message schemes (based on
   the Authentication Message) that can be used to assure past messages
   sent by a UA and also act as an assurance for UA trustworthiness in
   the absence of Internet connectivity at the receiving node.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on March 25, 2021.

Copyright Notice

   Copyright (c) 2020 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Wiethuechter, et al.     Expires March 25, 2021                 [Page 1]
Internet-Draft              DRIP Auth Formats             September 2020

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   license-info) in effect on the date of publication of this document.
   Please review these documents carefully, as they describe your rights
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  DRIP Requirements Addressed . . . . . . . . . . . . . . .   3
   2.  Terms and Definitions . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Requirements Terminology  . . . . . . . . . . . . . . . .   3
     2.2.  Definitions . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Background  . . . . . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Problem Space And Document Focus  . . . . . . . . . . . .   4
     3.2.  ASTM Authentication Message . . . . . . . . . . . . . . .   4
   4.  DRIP Authentication Framing Formats . . . . . . . . . . . . .   6
     4.1.  DRIP Authentication Frame . . . . . . . . . . . . . . . .   6
       4.1.1.  DRIP Header . . . . . . . . . . . . . . . . . . . . .   8
       4.1.2.  DRIP Authentication Data  . . . . . . . . . . . . . .   8
       4.1.3.  Forward Error Correction  . . . . . . . . . . . . . .   8
     4.2.  DRIP Wrapper Frame  . . . . . . . . . . . . . . . . . . .   9
       4.2.1.  UA Hierarchical Host Identity Tag . . . . . . . . . .  10
       4.2.2.  Trust Timestamp . . . . . . . . . . . . . . . . . . .  10
       4.2.3.  Authentication Data . . . . . . . . . . . . . . . . .  11
       4.2.4.  Signature . . . . . . . . . . . . . . . . . . . . . .  11
   5.  Bluetooth 4.X Formats . . . . . . . . . . . . . . . . . . . .  11
     5.1.  [1-4] Wrapped ASTM Message(s) . . . . . . . . . . . . . .  11
     5.2.  5 Wrapped ASTM Message(s) . . . . . . . . . . . . . . . .  12
     5.3.  Manifest  . . . . . . . . . . . . . . . . . . . . . . . .  12
       5.3.1.  Hash Algorithm And Operation  . . . . . . . . . . . .  12
       5.3.2.  4 Byte Manifest . . . . . . . . . . . . . . . . . . .  13
       5.3.3.  8 Byte Manifest . . . . . . . . . . . . . . . . . . .  13
       5.3.4.  Pseudo-blockchain Hashes  . . . . . . . . . . . . . .  14
       5.3.5.  Limitations . . . . . . . . . . . . . . . . . . . . .  15
     5.4.  Recommendations . . . . . . . . . . . . . . . . . . . . .  15
     5.5.  Certificate . . . . . . . . . . . . . . . . . . . . . . .  15
   6.  Bluetooth 5 Formats . . . . . . . . . . . . . . . . . . . . .  17
     6.1.  Certificate . . . . . . . . . . . . . . . . . . . . . . .  17
     6.2.  Message Pack Signature  . . . . . . . . . . . . . . . . .  17
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  18
   8.  ASTM Considerations . . . . . . . . . . . . . . . . . . . . .  18
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