jsHashes

jshashes is lightweight library implementing the most extended cryptographic hash function algorithms in pure JavaScript (ES5 compliant).

The goal is to provide an dependency-free, fast and reliable solution for hash algorithms for both client-side and server-side JavaScript environments. The code is fully compatible with the ECMAScript 5 specification and is used in production in browsers and node.js/io.js

If you are looking for a low-level performance library for the server-side, note that node.js/io.js provides its own native module: crypto

Supported hash algorithms

MD5 (http://www.ietf.org/rfc/rfc1321.txt)
SHA1 (http://www.itl.nist.gov/fipspubs/fip180-1.htm)
SHA256 (http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf)
SHA512 (http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf)
HMAC (http://www.ietf.org/rfc/rfc2104.txt)
RIPEMD-160 (http://homes.esat.kuleuven.be/~bosselae/ripemd160.html)

Additional functionalities

Base64 encoding/decoding (http://tools.ietf.org/html/rfc3548)
CRC-32 calculation
UTF-8 encoding/decoding

Environments

Browsers (ES3)
node.js/io.js (all versions)
Rhino
RingoJS

Usage

Each algorithm has its respective own instantiable object. Here you can see an example of how to create a new instance for each one:

// new MD5 instance
var MD5 = new Hashes.MD5
// new SHA1 instance
var SHA1 = new Hashes.SHA1
// new SHA256 instance
var SHA256 =  new Hashes.SHA256
// new SHA512 instace
var SHA512 = new Hashes.SHA512
// new RIPEMD-160 instace
var RMD160 = new Hashes.RMD160

An example of how to generate an hexadecimal-based hash encoding for each algorithm:

// sample string
var str = 'Sample text!'
// output to console
console.log('MD5: ' + MD5.hex(str))
console.log('SHA1: ' + SHA1.hex(str))
console.log('SHA256: ' + SHA256.hex(str))
console.log('SHA512: ' + SHA512.hex(str))
console.log('RIPEMD-160: ' + RMD160.hex(str))

Browsers

This is a simple implementation for a client-side environment:

<html>
<head>
<script type="text/javascript" src="src/hashes.js"></script>
<script type="text/javascript">
// sample string
var str = 'This is a sample text!'
// new MD5 instance and hexadecimal string encoding
var MD5 = new Hashes.MD5().hex(str)
// output into DOM
document.write('<p>MD5: <b>' + MD5 + '</b></p>')
</script>
</head>
<body>
</body>
</html>

node.js / io.js

// require the module
var Hashes = require('jshashes')
// sample string
var str = 'This is a sample text!'
// new SHA1 instance and base64 string encoding
var SHA1 = new Hashes.SHA1().b64(str)
// output to console
console.log('SHA1: ' + SHA1)

Command-line interface

You can use the simple command-line interface to generate hashes.

$ hashes sha1-hex This is a sample string
> b6a8501d8a70e74e1dc12a6082102622fdc719bb

# or with quotes
$ hashes sha1-hex "This is a sample string"
> b6a8501d8a70e74e1dc12a6082102622fdc719bb

For more information about the options supported, type:

$ hashes -h

Installation

Via npm

$ npm install jshashes

Via Bower:

$ bower install jshashes

Via Component:

$ component install h2non/jshashes

Or loading the script directly:

http://cdn.rawgit.com/h2non/jsHashes/master/hashes.js

Public methods

Each algorithm class provides the following public methods:

hex(string) - Hexadecimal hash encoding from string.
b64(string) - Base64 hash encoding from string.
any(string,encoding) - Custom hash algorithm values encoding.
hex_hmac(key,string) - Hexadecimal hash with HMAC salt key.
b64_hmac(key,string) - Base64 hash with HMAC salt key.
any_hmac(key,string,encoding) - Custom hash values encoding with HMAC salt key support.
vm_test() - Simple self-test to see is working. Returns this Object.
setUpperCase(boolean) - Enable/disable uppercase hexadecimal returned string. Returns this Object.
setPad(string) - Defines a custom base64 pad string. Default is '=' according with the RFC standard. Returns this Object.
setUTF8(boolean) - Enable/disable UTF-8 character encoding. Returns this Object.

Hash encoding formats supported

Hexadecimal (most extended)
Base64
Custom hash values any() method

Benchmark

Node.js 0.6.18 running on a VPS Intel I7 930 with 512 MB of RAM (see server/benchmark.js)

Simple benchmark test generating 10000 hashes for each algorithm.
String: "A0gTtNtKh3RaduBfIo59ZdfTc5pTdOQrkxdZ5EeVOIZh1cXxqPyexKZBg6VlE1KzIz6pd6r1LLIpT5B8THRfcGvbJElwhWBi9ZAE"

* MD5
** Done in: 205 milliseconds
* SHA1
** Done in: 277 milliseconds
* SHA256
** Done in: 525 milliseconds
* SHA512
** Done in: 593 milliseconds
* RMD160
** Done in: 383 milliseconds

See client/benchmark.html for client-side.

Notes

Don't support checksum hash for files on the server-side, only strings-based inputs are supported.
It has not been planned to include support for more hash algorithms.
The goal is to provide the same JavaScript code in both server and client side, so it isn't planned to improve it in other ways.
Only Node.js server-side was tested, so with minimal changes, you can setup jsHashes in other server-side JS environment.

Changelog

1.0.7
- Merge #37: fix terminator statement token.
1.0.6
- Fix #34: options pad typo.
1.0.4
- Fix CLI script call error when use it from Bash
- Added CLI usage example
1.0.3
- Important bugfixes to UTF-8 encoding (broken in 1.0.2) and the RIPEMD-160 hash (broken in 1.0.1). (gh #6)
- New test suite for hashes, CRC32, and hmac; run with 'npm test' in node.
- Fixed global variable leaks. (gh #13)
- CRC32 will now always return positive values. (gh #11)
- Added package version property to the exposed Hashes Object
- Updated CLI script utility supporting all algorithms (see bin/hashes)
- Fixed UTF-8 encoding/decoding error (if input parameter is undefined or invalid)
1.0.2
- Performance improvements and minimal refactor (length property caching, literal notation)
- Available from Bower package manager
1.0.1
- Refactoring (hoisting, coercion, removed redundant functions, scoping, restructure...)
- Performance improves
- JSLint validation (except bitwise operators)
- Now the library can be used like a AMD CommonJS module
- Updated documentation
- New folders structure
- Added closure compiled and minimized library version
- Available from Jam package manager
0.1.5b
- Added index.js for easy call the module in Node.js
- Updated documentation
0.1.4b
- Now declaring objects using Literal Notation.
- Solved syntax errors on minimized version (jshashes.min.js)
- Added benchmark test and sample
0.1.3b
- Starting non-redundancy code refactorization
- Added Helpers Object with some global functions
- Added native support for Base64 provided as class
- Added CRC-32 calculation support
- Added URL encode/decode helpers functions
0.1.2b
- SHA1 error fixed.
- General code changes (renaming classes, private methods, new methods...).
- Changing library namespace to 'Hashes'.
- Starting code documentation.
- Added new examples of how to use.
0.1.1b
- Minimal library improvements.
- There has been added some samples, like how to use it and support for NPM package.
0.1.0b
- First release: the code is stable, but the library is still beta and must be improved and documented.

TODO

Performance benchmarking

Authors

Library author

Tomas Aparicio

Original algorithm authors

Paul Johnston
Angel Marin (SHA256)
Jeremy Lin (RIPEMD-160)

Other contributors

C. Scott Ananian
Greg Holt
Andrew Kepert
Ydnar
Lostinet

License

jsHashes is released under New BSD license. See LICENSE file.

Issues

Feel free to report any issue you experiment via Github https://github.com/h2non/jsHashes/issues.

h2non/jshashes

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