Reference Interaction Models for Remote Attestation Procedures
draft-birkholz-rats-reference-interaction-model-02

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Replaces draft-birkholz-reference-ra-interaction-model
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RATS Working Group                                           H. Birkholz
Internet-Draft                                                  M. Eckel
Intended status: Standards Track                          Fraunhofer SIT
Expires: July 10, 2020                                  January 07, 2020

     Reference Interaction Models for Remote Attestation Procedures
           draft-birkholz-rats-reference-interaction-model-02

Abstract

   This document defines interaction models for basic remote attestation
   procedures.  Different methods of conveying attestation evidence
   securely are defined and illustrated.  Analogously, the required
   information elements used by conveyance protocols are defined and
   illustrated.

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Birkholz & Eckel          Expires July 10, 2020                 [Page 1]
Internet-Draft                    REIM                      January 2020

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements notation . . . . . . . . . . . . . . . . . .   3
   2.  Disambiguation  . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
   4.  Normative Prerequisites . . . . . . . . . . . . . . . . . . .   3
   5.  Remote Attestation Interaction Model  . . . . . . . . . . . .   4
     5.1.  Information Elements  . . . . . . . . . . . . . . . . . .   4
     5.2.  Interaction Model . . . . . . . . . . . . . . . . . . . .   6
   6.  Further Context . . . . . . . . . . . . . . . . . . . . . . .   7
     6.1.  Confidentiality . . . . . . . . . . . . . . . . . . . . .   7
     6.2.  Mutual Authentication . . . . . . . . . . . . . . . . . .   8
     6.3.  Hardware-Enforcement/Support  . . . . . . . . . . . . . .   8
   7.  Implementation Status . . . . . . . . . . . . . . . . . . . .   8
     7.1.  Implementer . . . . . . . . . . . . . . . . . . . . . . .   8
     7.2.  Implementation Name . . . . . . . . . . . . . . . . . . .   9
     7.3.  Implementation URL  . . . . . . . . . . . . . . . . . . .   9
     7.4.  Maturity  . . . . . . . . . . . . . . . . . . . . . . . .   9
     7.5.  Coverage and Version Compatibility  . . . . . . . . . . .   9
     7.6.  License . . . . . . . . . . . . . . . . . . . . . . . . .   9
     7.7.  Implementation Dependencies . . . . . . . . . . . . . . .   9
     7.8.  Contact . . . . . . . . . . . . . . . . . . . . . . . . .   9
   8.  Security and Privacy Considerations . . . . . . . . . . . . .   9
   9.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  10
   10. Change Log  . . . . . . . . . . . . . . . . . . . . . . . . .  10
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  11
     11.2.  Informative References . . . . . . . . . . . . . . . . .  11
   Appendix A.  CDDL Specification for a simple CoAP
                Challenge/Response Interaction . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   Remote ATtestation procedureS [I-D.ietf-rats-architecture] are
   workflows composed of roles and interactions, in which a Verifier
   creates assessments based on evidence about the trustworthiness of an
   Attester's system component characteristics.  The roles _Attester_
   and _Verifier_, as well as the message _Evidence_ are terms defined
   by the RATS Architecture.  The goal of this document is to enable the
   design and adoption of secure conveyance methods for attestation
   evidence from an Attester to a Verifier.
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