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