ISO/TS 32001:2022

ISO DTS 32001:202#(X)2022
ISO TC 171 / SC 2 / WG 8
2022-07-18
Secretariat: ANSI


Document management — — Portable Document Format — — Extensions to Hash Algorithm
Support in ISO 32000--2 (PDF 2.0)






DTS stage
Warning for WDs and CDs
This document is not an ISO International Standard. It is distributed for review and comment. It is subject to
change without notice and may not be referred to as an International Standard.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.

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© ISO Gestion de documents — Format de document portable (PDF) — Extensions pour la prise en charge
de l'algorithme de hachage dans l'ISO 32000-2 (PDF 2.0)

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ISO/TS 32001:2022(E)
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation,
no part of this publication may be reproduced or utilized otherwise in any form or by any means,
electronic or mechanical, including photocopying, or posting on the internet or an intranet,
without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland

© ISO 2022 – All rights reserved iii

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ISO/TS 32001:2022(E)

iv © ISO 2022 – All rights reserved

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ISO/TS 32001:2022(E)
Contents
Foreword . iv
Introduction. v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Extension schema details . 2
5 Digital signature enhancements . 2
5.1 Support for secure hash algorithm 3 (SHA-3) hash family . 2
5.1.1 General . 2
5.1.2 Addition to ISO 32000-2:2020, Table 237 – Entries in a signature field seed value
dictionary . 2
5.1.3 Changes to ISO 32000-2:2020, Table 256 – Entries in a signature reference
dictionary . 2
5.1.4 Changes to Table 260 – SubFilter value algorithm support . 3
Bibliography . 4
© ISO 2022 – All rights reserved v

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ISO/TS 32001:2022(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national
standards bodies (ISO member bodies). The work of preparing International Standards is normally
carried out through ISO technical committees. Each member body interested in a subject for which a
technical committee has been established has the right to be represented on that committee.
International organizations, governmental and non-governmental, in liaison with ISO, also take part in
the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all
matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directiveswww.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patentswww.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.htmlwww.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 171, Document management applications,
Subcommittee SC 2, Document file formats, EDMS systems and authenticity of information.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at
www.iso.org/members.htmlwww.iso.org/members.html.

vi © ISO 2022 – All rights reserved

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...

TECHNICAL ISO/TS
SPECIFICATION 32001
First edition
2022-09
Document management — Portable
Document Format — Extensions to
Hash Algorithm Support in ISO 32000-
2 (PDF 2.0)
Gestion de documents — Format de document portable (PDF) —
Extensions pour la prise en charge de l'algorithme de hachage dans
l'ISO 32000-2 (PDF 2.0)
PROOF/ÉPREUVE
Reference number
ISO/TS 32001:2022(E)
© ISO 2022

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ISO/TS 32001:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
PROOF/ÉPREUVE © ISO 2022 – All rights reserved

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ISO/TS 32001:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 S c op e . 1
2 Nor m at i ve r ef er enc e s . 1
3 Terms and definitions . 1
4 E xtension schema details .1
5 Digital signature enhancements . .2
5.1 S upport for secure hash algorithm 3 (SHA-3) hash family . 2
5.1.1 G eneral . 2
5.1.2 Addition to ISO 32000-2:2020, Table 237 – Entries in a signature field seed
value dictionary . 2
5.1.3 Changes to ISO 32000-2:2020, Table 256 – Entries in a signature reference
dictionary . 2
5.1.4 Changes to Table 260 – SubFilter value algorithm support . 2
Bibliography . 4
iii
© ISO 2022 – All rights reserved PROOF/ÉPREUVE

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ISO/TS 32001:2022(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/
iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 171, Document management applications,
Subcommittee SC 2, Document file formats, EDMS systems and authenticity of information.
Any feedback or questions on this document should be directed to the user’s national standards body. A
co
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