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@digitalbazaar/http-digest-header

v2.0.0

Published

Minimal isomorphic library (Node.js and browser) for creating and verifying Digest headers for HTTP Signatures

Downloads

3,416

Readme

HTTP Digest Header Library (@digitalbazaar/http-digest-header)

Build status

JavaScript library (Node.js and browser) for creating and verifying Digest headers for HTTP Signatures

Table of Contents

Background

Originally, this library was implemented based on the Digest header as mentioned in HTTP Signatures IETF draft.

Since then, the Digest header got its own standards-track spec, at https://tools.ietf.org/html/draft-ietf-httpbis-digest-headers.

TODO: Update library in accordance with the new digest spec.

This is a library specifically for creating and verifying the Digest: header, for use with HTTP Signatures and similar mechanisms.

This is a standalone separate library from http-digest-header so as not to introduce dependencies on cryptographic libraries to that lib.

It's intended to be isomorphic (for use both in the browser and server-side, with Node.js).

Install

  • Browsers and Node.js 14+ supported.
  • Web Crypto API required. Older browsers and Node.js 14 must use a polyfill.

To install from npm:

npm install @digitalbazaar/http-digest-header

To install locally (for development):

git clone https://github.com/digitalbazaar/http-digest-header.git
cd http-digest-header
npm install

Usage

import * as httpDigest from '@digitalbazaar/http-digest-header';

const data = `{"hello": "world"}`;

const headerValue = await httpDigest.
    createHeaderValue({data, algorithm: 'sha256', useMultihash: false});
// -> SHA-256=X48E9qOokqqrvdts8nOJRJN3OWDUoyWxBf7kbu9DBPE=

const dataToVerify1 = `{"hello": "world"}`;
const dataToVerify2 = `{"hello": "planet earth"}`;

const verifyResult = await httpDigest.verifyHeaderValue({data: dataToVerify1, headerValue});
// -> { verified: true }
const verifyResult = await httpDigest.verifyHeaderValue({data: dataToVerify2, headerValue});
// -> { verified: false }

Contribute

Please follow the existing code style.

PRs accepted.

If editing the Readme, please conform to the standard-readme specification.

Commercial Support

Commercial support for this library is available upon request from Digital Bazaar: [email protected]

License

BSD-3-Clause © 2019-2022 Digital Bazaar