ISO/TS 32002:2022 Document management – Portable Document Format – Extensions to Digital Signatures in ISO 32000-2 (PDF 2.0) (sponsored)

Description

This document specifies how to extend the ISO 32000-2 specification by adding support for the following: use of the NIST P-curve family of elliptical curves for digital signatures; use of the Brainpool family of elliptical curves for digital signatures; use of Edwards Curve (EdDSA) Ed448 and Ed25519 families of elliptical curves for digital signatures. 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 Foreword Introduction 1 ​Scope 2 ​Normative references 3 ​Terms and definitions 4 ​Extension Schema Details 5 ​Digital signature enhancements 5.1 ​Elliptic curve cryptography 5.1.1 ​Specification of allowed elliptic curve algorithms 5.1.2 ​Proposed changes to ISO 32000-2:2020 Table 260 – SubFilter value algorithm support 5.1.3 ​Specification of allowed elliptic curves 5.1.4 ​Hash algorithm congruence for message digest and signed attribute digest Bibliography