ISO/TS 32001:2022
Document management — Portable Document Format — Extensions to Hash Algorithm Support in ISO 32000-2 (PDF 2.0)
This document specifies how to extend the specifications in ISO 32000-2 by adding support for the use of the Secure Hash Algorithm – 3 (SHA-3) and SHAKE256 hash algorithms.
This document does not specify the following:
— specific processes for converting paper or electronic documents to the PDF file format;
— specific technical design, user interface implementation, or operational details of rendering;
— specific physical methods of storing these documents such as media and storage conditions;
— methods for validating the conformance of PDF files or PDF processors;
— required computer hardware and/or operating system
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Extension schema details
5 Digital signature enhancements
5.1 Support for secure hash algorithm 3 (SHA-3) hash family
5.1.1 General
5.1.2 Addition to ISO 32000-2:2020, Table 237 — Entries in a signature field seed value dictionary
5.1.3 Changes to ISO 32000-2:2020, Table 256 — Entries in a signature reference dictionary
5.1.4 Changes to ISO 32000-2:2020, Table 260 — SubFilter value algorithm support
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Extension schema details
5 Digital signature enhancements
5.1 Support for secure hash algorithm 3 (SHA-3) hash family
5.1.1 General
5.1.2 Addition to ISO 32000-2:2020, Table 237 — Entries in a signature field seed value dictionary
5.1.3 Changes to ISO 32000-2:2020, Table 256 — Entries in a signature reference dictionary
5.1.4 Changes to ISO 32000-2:2020, Table 260 — SubFilter value algorithm support
Bibliography