https://github.com/browserify/sha.js

Streamable SHA hashes in pure javascript
https://github.com/browserify/sha.js

browserify crypto javascript sha

Last synced: about 2 months ago
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Streamable SHA hashes in pure javascript

• Host: GitHub
• URL: https://github.com/browserify/sha.js
• Owner: browserify
• License: other
• Created: 2013-12-27T05:26:14.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2024-01-24T04:02:19.000Z (8 months ago)
• Last Synced: 2024-05-21T13:03:30.166Z (4 months ago)
• Topics: browserify, crypto, javascript, sha
• Language: JavaScript
• Homepage:
• Size: 340 KB
• Stars: 287
• Watchers: 7
• Forks: 60
• Open Issues: 14
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# sha.js

[![NPM Package](https://img.shields.io/npm/v/sha.js.svg?style=flat-square)](https://www.npmjs.org/package/sha.js)

[![Build Status](https://img.shields.io/travis/crypto-browserify/sha.js.svg?branch=master&style=flat-square)](https://travis-ci.org/crypto-browserify/sha.js)

[![Dependency status](https://img.shields.io/david/crypto-browserify/sha.js.svg?style=flat-square)](https://david-dm.org/crypto-browserify/sha.js#info=dependencies)

[![js-standard-style](https://cdn.rawgit.com/feross/standard/master/badge.svg)](https://github.com/feross/standard)

Node style `SHA` on pure JavaScript.

```js

var shajs = require('sha.js')

console.log(shajs('sha256').update('42').digest('hex'))

// => 73475cb40a568e8da8a045ced110137e159f890ac4da883b6b17dc651b3a8049

console.log(new shajs.sha256().update('42').digest('hex'))

// => 73475cb40a568e8da8a045ced110137e159f890ac4da883b6b17dc651b3a8049

var sha256stream = shajs('sha256')

sha256stream.end('42')

console.log(sha256stream.read().toString('hex'))

// => 73475cb40a568e8da8a045ced110137e159f890ac4da883b6b17dc651b3a8049

```

## supported hashes

`sha.js` currently implements:

  - SHA (SHA-0) -- **legacy, do not use in new systems**

  - SHA-1 -- **legacy, do not use in new systems**

  - SHA-224

  - SHA-256

  - SHA-384

  - SHA-512

## Not an actual stream

Note, this doesn't actually implement a stream, but wrapping this in a stream is trivial.

It does update incrementally, so you can hash things larger than RAM, as it uses a constant amount of memory (except when using base64 or utf8 encoding, see code comments).

## Acknowledgements

This work is derived from Paul Johnston's [A JavaScript implementation of the Secure Hash Algorithm](http://pajhome.org.uk/crypt/md5/sha1.html).

## LICENSE [MIT AND BSD-3-Clause](LICENSE)