Trusted Execution Environment Provisioning (TEEP) Protocol
draft-ietf-teep-protocol-00
TEEP H. Tschofenig
Internet-Draft Arm Ltd.
Intended status: Standards Track M. Pei
Expires: June 9, 2020 Broadcom
D. Wheeler
Intel
D. Thaler
Microsoft
December 7, 2019
Trusted Execution Environment Provisioning (TEEP) Protocol
draft-ietf-teep-protocol-00
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.
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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 June 9, 2020.
Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved.
Tschofenig, et al. Expires June 9, 2020 [Page 1]
Internet-Draft TEEP Protocol December 2019
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Requirements Language . . . . . . . . . . . . . . . . . . . . 3
3. Message Overview . . . . . . . . . . . . . . . . . . . . . . 3
4. Detailed Messages Specification . . . . . . . . . . . . . . . 5
4.1. QueryRequest . . . . . . . . . . . . . . . . . . . . . . 5
4.2. QueryResponse . . . . . . . . . . . . . . . . . . . . . . 7
4.3. TrustedAppInstall . . . . . . . . . . . . . . . . . . . . 9
4.4. TrustedAppDelete . . . . . . . . . . . . . . . . . . . . 9
4.5. Success . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.6. Error . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5. Ciphersuites . . . . . . . . . . . . . . . . . . . . . . . . 12
6. Security Consideration . . . . . . . . . . . . . . . . . . . 13
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 14
7.1. Media Type Registration . . . . . . . . . . . . . . . . . 14
7.2. Error Code Registry . . . . . . . . . . . . . . . . . . . 16
7.3. Ciphersuite Registry . . . . . . . . . . . . . . . . . . 17
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 17
8.1. Normative References . . . . . . . . . . . . . . . . . . 17
8.2. Informative References . . . . . . . . . . . . . . . . . 18
Appendix A. Acknowledgements . . . . . . . . . . . . . . . . . . 19
Appendix B. Contributors . . . . . . . . . . . . . . . . . . . . 19
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 20
1. Introduction
The Trusted Execution Environment (TEE) concept has been designed to
separate a regular operating system, also referred as a Rich
Execution Environment (REE), from security-sensitive applications.
In an TEE ecosystem, different device vendors may use different
operating systems in the REE and may use different types of TEEs.
When application providers or device administrators use Trusted
Application Managers (TAMs) to install, update, and delete Trusted
Applications (TAs) on a wide range of devices with potentially
different TEEs then an interoperability need arises.
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