✍ Scribed by ISO
No coin nor oath required. For personal study only.
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
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