A YANG Data Model for Challenge-Response-based Remote Attestation Procedures using TPMs
draft-ietf-rats-yang-tpm-charra-03

Document Type Active Internet-Draft (rats WG)
Authors Henk Birkholz  , Michael Eckel  , Eric Voit  , Shwetha Bhandari  , Bill Sulzen  , Liang Xia  , Tom Laffey  , Guy Fedorkow 
Last updated 2020-09-30
Replaces draft-birkholz-rats-basic-yang-module
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- Yang catalog entry for ietf-tpm-remote-attestation@2020-03-09.yang
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RATS Working Group                                           H. Birkholz
Internet-Draft                                                  M. Eckel
Intended status: Standards Track                          Fraunhofer SIT
Expires: April 3, 2021                                           E. Voit
                                                             S. Bhandari
                                                               B. Sulzen
                                                                   Cisco
                                                                  L. Xia
                                                                  Huawei
                                                               T. Laffey
                                                                     HPE
                                                             G. Fedorkow
                                                                 Juniper
                                                      September 30, 2020

   A YANG Data Model for Challenge-Response-based Remote Attestation
                         Procedures using TPMs
                   draft-ietf-rats-yang-tpm-charra-03

Abstract

   This document defines a YANG RPC and a minimal datastore required to
   retrieve attestation evidence about integrity measurements from a
   device following the operational context defined in
   [I-D.ietf-rats-tpm-based-network-device-attest].  Complementary
   measurement logs are also provided by the YANG RPC originating from
   one or more roots of trust of measurement.  The module defined
   requires at least one TPM 1.2 or TPM 2.0 and corresponding Trusted
   Software Stack included in the device components of the composite
   device the YANG server is running on.

Status of This Memo

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

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   This Internet-Draft will expire on April 3, 2021.

Birkholz, et al.          Expires April 3, 2021                 [Page 1]
Internet-Draft            YANG-CHARRA for TPMs            September 2020

Copyright Notice

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   document authors.  All rights reserved.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements notation . . . . . . . . . . . . . . . . . .   3
   2.  The YANG Module for Basic Remote Attestation Procedures . . .   3
     2.1.  Tree Diagram  . . . . . . . . . . . . . . . . . . . . . .   3
     2.2.  YANG Modules  . . . . . . . . . . . . . . . . . . . . . .   6
       2.2.1.  ietf-tpm-remote-attestation . . . . . . . . . . . . .   6
       2.2.2.  ietf-tcg-algs . . . . . . . . . . . . . . . . . . . .  35
   3.  IANA considerations . . . . . . . . . . . . . . . . . . . . .  51
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .  51
   5.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  52
   6.  Change Log  . . . . . . . . . . . . . . . . . . . . . . . . .  52
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  53
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  53
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  54
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  55

1.  Introduction

   This document is based on the terminology defined in the
   [I-D.ietf-rats-architecture] and uses the operational context defined
   in [I-D.ietf-rats-tpm-based-network-device-attest] as well as the
   interaction model and information elements defined in
   [I-D.birkholz-rats-reference-interaction-model].  The currently
   supported hardware security modules (HWM) are the Trusted Platform
   Module (TPM) [TPM1.2] and [TPM2.0] specified by the Trusted Computing
   Group (TCG).  One ore more TPMs embedded in the components of a
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