Time-Based Uni-Directional Attestation
draft-birkholz-tuda-04

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Last updated 2017-03-13
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Network Working Group                                           A. Fuchs
Internet-Draft                                               H. Birkholz
Intended status: Informational                            Fraunhofer SIT
Expires: September 14, 2017                                  I. McDonald
                                                          High North Inc
                                                              C. Bormann
                                                 Universitaet Bremen TZI
                                                          March 13, 2017

                 Time-Based Uni-Directional Attestation
                         draft-birkholz-tuda-04

Abstract

   This memo documents the method and bindings used to conduct time-
   based uni-directional attestation between distinguishable endpoints
   over the network.

Status of This Memo

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   This Internet-Draft will expire on September 14, 2017.

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   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Fuchs, et al.          Expires September 14, 2017               [Page 1]
Internet-Draft                    tuda                        March 2017

   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Remote Attestation  . . . . . . . . . . . . . . . . . . .   3
     1.2.  Attestation and Verification  . . . . . . . . . . . . . .   4
     1.3.  Information Elements and Conveyance . . . . . . . . . . .   4
     1.4.  TUDA Objectives . . . . . . . . . . . . . . . . . . . . .   5
     1.5.  Hardware Dependencies . . . . . . . . . . . . . . . . . .   5
     1.6.  Requirements Notation . . . . . . . . . . . . . . . . . .   6
   2.  TUDA Core Concept . . . . . . . . . . . . . . . . . . . . . .   6
     2.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   7
       2.1.1.  Universal Terms . . . . . . . . . . . . . . . . . . .   7
       2.1.2.  Roles . . . . . . . . . . . . . . . . . . . . . . . .   9
       2.1.3.  General Types . . . . . . . . . . . . . . . . . . . .   9
       2.1.4.  TPM-Specific Terms  . . . . . . . . . . . . . . . . .   9
       2.1.5.  Certificates  . . . . . . . . . . . . . . . . . . . .   9
   3.  Time-Based Uni-Directional Attestation  . . . . . . . . . . .   9
     3.1.  TUDA Information Elements Update Cycles . . . . . . . . .  11
   4.  Sync Base Protocol  . . . . . . . . . . . . . . . . . . . . .  13
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  14
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  14
   7.  Change Log  . . . . . . . . . . . . . . . . . . . . . . . . .  14
   8.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  15
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  15
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  15
   Appendix A.  REST Realization . . . . . . . . . . . . . . . . . .  18
   Appendix B.  SNMP Realization . . . . . . . . . . . . . . . . . .  19
     B.1.  Structure of TUDA MIB . . . . . . . . . . . . . . . . . .  19
       B.1.1.  Cycle Index . . . . . . . . . . . . . . . . . . . . .  20
       B.1.2.  Instance Index  . . . . . . . . . . . . . . . . . . .  20
       B.1.3.  Fragment Index  . . . . . . . . . . . . . . . . . . .  20
     B.2.  Relationship to Host Resources MIB  . . . . . . . . . . .  21
     B.3.  Relationship to Entity MIB  . . . . . . . . . . . . . . .  21
     B.4.  Relationship to Other MIBs  . . . . . . . . . . . . . . .  21
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