The Entity Attestation Token (EAT)
draft-mandyam-rats-eat-00

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Last updated 2019-03-24
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RATS Working Group                                            G. Mandyam
Internet-Draft                                Qualcomm Technologies Inc.
Intended status: Standards Track                            L. Lundblade
Expires: September 25, 2019                          Security Theory LLC
                                                          M. Ballesteros
                                                           J. O'Donoghue
                                              Qualcomm Technologies Inc.
                                                          March 24, 2019

                   The Entity Attestation Token (EAT)
                       draft-mandyam-rats-eat-00

Abstract

   An attestation format based on concise binary object representation
   (CBOR) is proposed that is suitable for inclusion in a CBOR Web Token
   (CWT), know as the Entity Attestation Token (EAT).  The associated
   data can be used by a relying party to assess the security state of a
   remote device or module.

Contributing

   TBD

Status of This Memo

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Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Mandyam, et al.        Expires September 25, 2019               [Page 1]
Internet-Draft                     EAT                        March 2019

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Entity Overview . . . . . . . . . . . . . . . . . . . . .   4
     1.2.  Use of CBOR and COSE  . . . . . . . . . . . . . . . . . .   5
     1.3.  EAT Operating Models  . . . . . . . . . . . . . . . . . .   5
     1.4.  What is Not Standardized  . . . . . . . . . . . . . . . .   6
       1.4.1.  Transmission Protocol . . . . . . . . . . . . . . . .   6
       1.4.2.  Signing Scheme  . . . . . . . . . . . . . . . . . . .   7
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   7
   3.  The Claims  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     3.1.  Universal Entity ID (UEID) Claim  . . . . . . . . . . . .   8
     3.2.  Origination (origination) Claims  . . . . . . . . . . . .  11
     3.3.  OEM identification by IEEE OUI  . . . . . . . . . . . . .  11
     3.4.  Security Level (seclevel) Claim . . . . . . . . . . . . .  12
     3.5.  Nonce (nonce) Claim . . . . . . . . . . . . . . . . . . .  13
     3.6.  Secure Boot and Debug Enable State Claims . . . . . . . .  13
       3.6.1.  Secure Boot Enabled (secbootenabled) Claim  . . . . .  13
       3.6.2.  Debug Disabled (debugdisabled) Claim  . . . . . . . .  13
       3.6.3.  Debug Disabled Since Boot (debugdisabledsincebboot)
               Claim . . . . . . . . . . . . . . . . . . . . . . . .  13
       3.6.4.  Debug Permanent Disable (debugpermanentdisable) Claim  13
       3.6.5.  Debug Full Permanent Disable
               (debugfullpermanentdisable) Claim . . . . . . . . . .  14
     3.7.  Location (loc) Claim  . . . . . . . . . . . . . . . . . .  14
       3.7.1.  lat (latitude) claim  . . . . . . . . . . . . . . . .  14
       3.7.2.  long (longitude) claim  . . . . . . . . . . . . . . .  14
       3.7.3.  alt (altitude) claim  . . . . . . . . . . . . . . . .  14
       3.7.4.  acc (accuracy) claim  . . . . . . . . . . . . . . . .  14
       3.7.5.  altacc (altitude accuracy) claim  . . . . . . . . . .  15
       3.7.6.  heading claim . . . . . . . . . . . . . . . . . . . .  15
       3.7.7.  speed claim . . . . . . . . . . . . . . . . . . . . .  15
     3.8.  ts (timestamp) claim  . . . . . . . . . . . . . . . . . .  15
     3.9.  age claim . . . . . . . . . . . . . . . . . . . . . . . .  15
     3.10. uptime claim  . . . . . . . . . . . . . . . . . . . . . .  15
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