hash-base
abstract base class for hash-streams
Last updated 7 months ago by ljharb .
MIT · Repository · Bugs · Original npm · Tarball · package.json
$ cnpm install hash-base 
SYNC missed versions from official npm registry.

hash-base

npm Package Build Status Dependency status

Abstract base class to inherit from if you want to create streams implementing the same API as node crypto Hash (for Cipher / Decipher check crypto-browserify/cipher-base).

Example

const HashBase = require('hash-base');
const inherits = require('inherits');

// our hash function is XOR sum of all bytes
function MyHash () {
	HashBase.call(this, 1); // in bytes

	this._sum = 0x00;
};

inherits(MyHash, HashBase)

MyHash.prototype._update = function () {
	for (let i = 0; i < this._block.length; ++i) {
		this._sum ^= this._block[i];
	}
};

MyHash.prototype._digest = function () {
	return this._sum;
};

const data = Buffer.from([0x00, 0x42, 0x01]);
const hash = new MyHash().update(data).digest();
console.log(hash); // => 67

You also can check source code or crypto-browserify/md5.js

LICENSE

MIT

Current Tags

  • 3.0.5                                ...           3.0-latest (a year ago)
  • 3.1.2                                ...           latest (7 months ago)

15 Versions

  • 3.1.2                                ...           7 months ago
  • 3.1.1                                ...           7 months ago
  • 3.0.5                                ...           a year ago
  • 3.1.0                                ...           6 years ago
  • 3.0.4                                ...           9 years ago
  • 3.0.3                                ...           10 years ago
  • 3.0.2                                ...           10 years ago
  • 3.0.1                                ...           10 years ago
  • 3.0.0                                ...           10 years ago
  • 2.0.2                                ...           10 years ago
  • 2.0.1                                ...           10 years ago
  • 2.0.0                                ...           10 years ago
  • 1.0.2                                ...           10 years ago
  • 1.0.1                                ...           10 years ago
  • 1.0.0                                ...           10 years ago
Downloads
Today 0
This Week 108
This Month 154
Last Day 13
Last Week 67
Last Month 255
Dependencies (4)
Dev Dependencies (7)

Copyright 2013 - present © cnpmjs.org | Home |