A Concise Binary Object Representation (CBOR)-based Serialization Format for the Software Updates for Internet of Things (SUIT) Manifest
draft-ietf-suit-manifest-02
SUIT B. Moran
Internet-Draft H. Tschofenig
Intended status: Standards Track Arm Limited
Expires: May 7, 2020 H. Birkholz
Fraunhofer SIT
November 04, 2019
A Concise Binary Object Representation (CBOR)-based Serialization Format
for the Software Updates for Internet of Things (SUIT) Manifest
draft-ietf-suit-manifest-02
Abstract
This specification describes the format of a manifest. A manifest is
a bundle of metadata about the firmware for an IoT device, where to
find the firmware, the devices to which it applies, and cryptographic
information protecting the manifest.
Status of This Memo
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provisions of BCP 78 and BCP 79.
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and may be updated, replaced, or obsoleted by other documents at any
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on May 7, 2020.
Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved.
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include Simplified BSD License text as described in Section 4.e of
Moran, et al. Expires May 7, 2020 [Page 1]
Internet-Draft SUIT CBOR Manifest November 2019
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Conventions and Terminology . . . . . . . . . . . . . . . . . 5
3. How to use this document . . . . . . . . . . . . . . . . . . 6
4. Background . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1. Landscape . . . . . . . . . . . . . . . . . . . . . . . . 6
4.2. Update Workflow Model . . . . . . . . . . . . . . . . . . 7
4.3. SUIT Manifest goals . . . . . . . . . . . . . . . . . . . 8
4.4. SUIT manifest design summary . . . . . . . . . . . . . . 9
5. Interpreter Behaviour . . . . . . . . . . . . . . . . . . . . 10
5.1. Interpreter Setup . . . . . . . . . . . . . . . . . . . . 10
5.2. Required Checks . . . . . . . . . . . . . . . . . . . . . 11
5.3. Interpreter fundamental properties . . . . . . . . . . . 12
5.4. Abstract Machine Description . . . . . . . . . . . . . . 12
5.4.1. Parameters . . . . . . . . . . . . . . . . . . . . . 13
5.4.2. Commands . . . . . . . . . . . . . . . . . . . . . . 13
5.4.3. Command Behaviour . . . . . . . . . . . . . . . . . . 15
5.5. Serialized Processing Interpreter . . . . . . . . . . . . 16
5.6. Parallel Processing Interpreter . . . . . . . . . . . . . 16
5.7. Processing Dependencies . . . . . . . . . . . . . . . . . 17
6. Creating Manifests . . . . . . . . . . . . . . . . . . . . . 17
6.1. Manifest Source Material . . . . . . . . . . . . . . . . 18
6.2. Required Template: Compatibility Check . . . . . . . . . 18
6.3. Use Case Template: XIP Secure Boot . . . . . . . . . . . 19
6.4. Use Case Template: Firmware Download . . . . . . . . . . 19
6.5. Use Case Template: Load from External Storage . . . . . . 20
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