https://github.com/hughsk/lsb

Steganography cheap trick - hide string data in the least-significant bits of an array.
https://github.com/hughsk/lsb

Last synced: 12 days ago
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Steganography cheap trick - hide string data in the least-significant bits of an array.

• Host: GitHub
• URL: https://github.com/hughsk/lsb
• Owner: hughsk
• License: other
• Created: 2013-03-03T06:38:55.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2013-03-22T13:42:18.000Z (over 11 years ago)
• Last Synced: 2024-10-17T16:40:31.216Z (22 days ago)
• Language: JavaScript
• Homepage: http://hughsk.github.com/lsb
• Size: 584 KB
• Stars: 27
• Watchers: 10
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

        
# lsb [![Build Status](https://secure.travis-ci.org/hughsk/lsb.png?branch=master)](http://travis-ci.org/hughsk/lsb) #

Hide string data in the least-significant bits of an array. It's an easy way

of, say, storing information in images invisibly. If you're feeling game,

try hiding data [in a JPG's DCT coefficients](http://www.guillermito2.net/stegano/jsteg/index.html),

maybe with [jpgjs](https://github.com/notmasteryet/jpgjs) :)

See example code for image hiding in the

[demo](https://github.com/hughsk/lsb/blob/master/example.js) or

[voxel-painter](http://github.com/maxogden/voxel-painter).

## Installation ##

``` bash

$ npm install lsb

```

## Usage ##

`require('lsb').encode(channel, stegotext, [iterator])`

Where `channel` is the array to hide the `stegotext` string in. `iterator` is

an optional callback for determining the index of each hidden byte, if you want

to get tricky.

`require('lsb').decode(channel, [iterator])`

Once encodeded, use this on the same `channel` array to return the hidden

string. If you used an `iterator` callback before, you'll need to use it again

here or you'll get garbage text.