ed25519-signature-2020-context

Ed25519Signature2020 Suite JSON-LD Context (ed25519-signature-2020-context)

JSON-LD Context for the Ed25519 2020 Cryptosuite.

Table of Contents

• Background
• Install
• Usage
• Commercial Support
• License

Background

See also (related specs):

• Ed25519 Signature 2020 Suite Draft Spec
• Multibase (for proofValue and publicKeyMultibase encoding)

Install

Requires Node.js 12+

To install via NPM:

npm install ed25519-signature-2020-context

Usage

const {
  contexts, constants, appContextMap, documentLoader
} = require('ed25519-signature-2020-context');

// use URL in a JSON-LD context
const obj = {
  "@context": [
    constants.CONTEXT_URL,
    // ...
  ],
  // ...
};

// Codec term map value for CBOR-LD
constants.CBORLD_CODEC_VALUE
// 0x14

// get context data for a specific context
const data = contexts.get('https://w3id.org/security/suites/ed25519-2020/v1');
// ...

This package can be used with bundlers, such as [webpack][], in browser applications.

API

The library exports the following properties:

• constants: A Object that maps constants to well-known context URLs. The main constant CONTEXT_URL may be updated from time to time to the latest context location.
• contexts: A Map that maps URLs to full context data.
• appContextMap: For use with cborld library.
• documentLoader

Commercial Support

Commercial support for this library is available upon request from Digital Bazaar: [e-mail]

License

• BSD 3-Clause © Digital Bazaar
• See the LICENSE file for details.

Changelog

1.1.0 - 2021-04-22

Added

• Add definition for the proof term.

Changed

• Refactor to use current context repo template (generate the .jsonld during build).