Server : nginx/1.18.0 System : Linux localhost 6.14.3-x86_64-linode168 #1 SMP PREEMPT_DYNAMIC Mon Apr 21 19:47:55 EDT 2025 x86_64 User : www-data ( 33) PHP Version : 8.0.16 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /var/www/ecommerce/node_modules/hash-base/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

# hash-base

[![NPM Package](https://img.shields.io/npm/v/hash-base.svg?style=flat-square)](https://www.npmjs.org/package/hash-base)
[![Build Status](https://img.shields.io/travis/crypto-browserify/hash-base.svg?branch=master&style=flat-square)](https://travis-ci.org/crypto-browserify/hash-base)
[![Dependency status](https://img.shields.io/david/crypto-browserify/hash-base.svg?style=flat-square)](https://david-dm.org/crypto-browserify/hash-base#info=dependencies)

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

Abstract base class to inherit from if you want to create streams implementing the same API as node crypto [Hash][1] (for [Cipher][2] / [Decipher][3] check [crypto-browserify/cipher-base][4]).

## Example

```js
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](index.js) or [crypto-browserify/md5.js][5]

## LICENSE

MIT

[1]: https://nodejs.org/api/crypto.html#crypto_class_hash
[2]: https://nodejs.org/api/crypto.html#crypto_class_cipher
[3]: https://nodejs.org/api/crypto.html#crypto_class_decipher
[4]: https://github.com/crypto-browserify/cipher-base
[5]: https://github.com/crypto-browserify/md5.js