Trusted Execution Environment Provisioning (TEEP) Protocol
draft-ietf-teep-protocol-03

Document Type Active Internet-Draft (teep WG)
Last updated 2020-07-13
Replaces draft-tschofenig-teep-protocol
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TEEP                                                       H. Tschofenig
Internet-Draft                                                  Arm Ltd.
Intended status: Standards Track                                  M. Pei
Expires: January 14, 2021                                       Broadcom
                                                              D. Wheeler
                                                                   Intel
                                                               D. Thaler
                                                               Microsoft
                                                            A. Tsukamoto
                                                                    AIST
                                                           July 13, 2020

       Trusted Execution Environment Provisioning (TEEP) Protocol
                      draft-ietf-teep-protocol-03

Abstract

   This document specifies a protocol that installs, updates, and
   deletes Trusted Applications (TAs) in a device with a Trusted
   Execution Environment (TEE).  This specification defines an
   interoperable protocol for managing the lifecycle of TAs.

   The protocol name is pronounced teepee.  This conjures an image of a
   wedge-shaped protective covering for one's belongings, which sort of
   matches the intent of this protocol.

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
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on January 14, 2021.

Tschofenig, et al.      Expires January 14, 2021                [Page 1]
Internet-Draft                TEEP Protocol                    July 2020

Copyright Notice

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

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   3
   3.  Message Overview  . . . . . . . . . . . . . . . . . . . . . .   3
   4.  Detailed Messages Specification . . . . . . . . . . . . . . .   5
     4.1.  Creating and Validating TEEP Messages . . . . . . . . . .   5
       4.1.1.  Creating a TEEP message . . . . . . . . . . . . . . .   5
       4.1.2.  Validating a TEEP Message . . . . . . . . . . . . . .   6
     4.2.  QueryRequest  . . . . . . . . . . . . . . . . . . . . . .   6
     4.3.  QueryResponse . . . . . . . . . . . . . . . . . . . . . .   8
     4.4.  TrustedAppInstall . . . . . . . . . . . . . . . . . . . .  10
     4.5.  TrustedAppDelete  . . . . . . . . . . . . . . . . . . . .  11
     4.6.  Success . . . . . . . . . . . . . . . . . . . . . . . . .  11
     4.7.  Error . . . . . . . . . . . . . . . . . . . . . . . . . .  12
   5.  Mapping of TEEP Message Parameters to CBOR Labels . . . . . .  15
   6.  Ciphersuites  . . . . . . . . . . . . . . . . . . . . . . . .  15
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  16
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  18
     8.1.  Media Type Registration . . . . . . . . . . . . . . . . .  18
     8.2.  Error Code Registry . . . . . . . . . . . . . . . . . . .  19
     8.3.  Ciphersuite Registry  . . . . . . . . . . . . . . . . . .  19
     8.4.  CBOR Tag Registry . . . . . . . . . . . . . . . . . . . .  19
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  20
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  20
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  21
   A. Contributors . . . . . . . . . . . . . . . . . . . . . . . . .  21
   B. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . .  21
   C. Complete CDDL  . . . . . . . . . . . . . . . . . . . . . . . .  21
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  24
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