ISO/IEC 21617-1:2025

Information technology — JPEG Trust — Part 1: Core foundation

This document specifies a framework for establishing trust in media. This framework includes aspects of authenticity, provenance and integrity through secure and reliable annotation of the media assets throughout their life cycle.

Titre manque — Partie 1: Titre manque

General Information

• Status: Published
• Publication Date: 27-Jan-2025
• ICS: 35.040.30 - Coding of graphical and photographical information
• Technical Committee: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
• Drafting Committee: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
• Current Stage: 9092 - International Standard to be revised
• Due Date: 28-Jan-2025
• Completion Date: 28-Jan-2025

Standards Content (Sample)

International
Standard
ISO/IEC 21617-1
First edition
Information technology — JPEG
2025-01
Trust —
Part 1:
Core foundation
Reference number
© ISO/IEC 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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© ISO/IEC 2025 – All rights reserved
ii
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 JPEG Trust framework . 5
4.1 Description .5
4.2 Overview .5
4.3 Trust Record .6
4.4 Trust Manifests .7
4.4.1 General .7
4.4.2 Components of a Trust Manifest .8
4.4.3 Details of a Trust Manifest . .8
4.4.4 Trust Declaration .9
4.5 Trust Indicators .9
4.6 Trust Credential . .9
4.6.1 General .9
4.6.2 For media asset content .10
4.6.3 For Trust Manifests .10
4.6.4 Claim . 13
4.6.5 For claim signature .14
4.6.6 For verifiable credentials . . 15
4.6.7 For media asset metadata . 15
4.6.8 Example Trust Credentials .16
4.7 Trust Profile . 20
4.7.1 General . 20
4.7.2 Trust Profile information . 20
4.7.3 Statements . 20
4.7.4 Expressions .21
4.7.5 Predefined statement IDs .21
4.7.6 Examples . 22
4.8 Trust Report .27
4.8.1 General .27
4.8.2 Examples . 28
4.8.3 Trust Report generation procedure .31
5 Media asset life cycle annotations.31
5.1 Overview .31
5.2 Assertions .32
5.2.1 Description .32
5.2.2 IPR information .32
5.2.3 Using existing metadata standards . 35
5.2.4 Actions . 35
5.2.5 Bindings (hashes) . 36
5.3 Assertion metadata .37
5.3.1 General .37
5.3.2 Actors .37
5.3.3 When (date and time) .37
5.3.4 Extent of modification(s) . .37
6 Embedding and referencing.38
6.1 Use of JUMBF . 38
6.2 Embedding manifests into JPEG assets . 38
6.2.1 Embedding manifests into JPEG 1 and JPEG XT. 38
6.2.2 Embedding manifests into JPEG XL . 39

© ISO/IEC 2025 – All rights reserved
iii
6.2.3 Embedding manifests into JPEG 2000 . . 39
6.2.4 Embedding manifests into JPEG XS . 40
6.3 Embedding manifests into other asset types . 40
6.4 External manifests . 40
6.5 Embedding a reference to the active manifest . 40
7 Identification of actors .40
7.1 Identity and actors . 40
7.1.1 Verifiable credentials . 40
8 Media asset content binding .43
8.1 General .43
8.2 Cryptographic binding to content .43
8.3 Use of digital signatures .43
8.4 Validation .43
9 Privacy and protection .44
9.1 General .
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