ISO/IEC 23000-21:2019/DAmd 1

Conformance and reference software

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DRAFT AMENDMENT
ISO/IEC 23000-21:2019/DAM 1
ISO/IEC JTC 1/SC 29 Secretariat: JISC
Voting begins on: Voting terminates on:
2020-03-31 2020-06-23
Information technology — Multimedia application format
(MPEG-A) —
Part 21:
Visual identity management application format
AMENDMENT 1: Conformance and reference software
ICS: 35.040.40
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ISO/IEC 23000-21:2019/DAM 1:2020(E)
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ISO/IEC 23000-21:2019/DAM 1:2020(E)
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ISO/IEC 23000-21:2019/DAM 1:2020(E)
Information technology — Multimedia application format
(MPEG-A) —
Part 21:
Visual identity management application format
AMENDMENT 1: Conformance and reference software
Add a new normative Annex B with the following text:
Annex B
(normative)
Conformance and reference software
B.1 Introduction

This annex provides a verification toolset for the method called “Content Sensitive Encryption” (CSE) as

described in Annex A. It contains the following components:

• Reference software: Implementations which demonstrate the CSE method for AVC and HEVC

• Test vectors: Stand-alone compliant content that implement elements of the standard.

This software is available at https:// standards .iso .org/ iso -iec/ 15444/ -5/ ed -2/ en/ amd/ 1

B.2 Content Sensitive Encryption Reference Software
B.2.1 Reference Software presentation

At the difference with those previous encryption schemes, Content Sensitive Encryption considers the

coding structure of the video compressed bitstream and encrypts only the most sensitive information

in the video bitstream. And CSE generates protected bitstreams that can be decoded by any compliant

decoder without requiring access to the encryption key. So since the Content Sensitive Encryption

takes pl
...