Pccipher
Pccipher is the ProgClub encryption software. That's the software that allows you to encrypt and decrypt data in PHP and Javascript. It's compatible with 32-bit and 64-bit implementations of PHP, and should work in any Javascript capable web-browser. For other projects see Projects.
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TODO
Things to do, in rough order of priority:
- Use the 'pccipher' namespace for phpjs
- Flesh out the unit tests
- Integrate with PHP mcrypt?
- Compatible implementations in other languages
- Twofish?
Done
Stuff that's done. Latest stuff on top.
- JE 2011-10-30: fixed pccipher_encrypt and pccipher_decrypt functions
- JE 2011-08-16: packaged in .tar.gz download files
- JE 2011-08-16: documented usage process for Javascript and PHP
- JE 2011-08-16: integrated SimpleTest testing framework for PHP
- JE 2011-08-16: integrated QUnit testing framework for Javascript
- JE 2011-08-16: fixed formatting to use \x02 .. \x03 wrapper
- JE 2011-08-16: removed key crc, and added algorithm code
- JE 2011-08-16: copied in existing code (support for Blowfish on PHP and Javascript)
- JE 2011-08-16: created the project in svn
- JE 2011-08-16: created project page
Tests
Javascript tests
You can run the Javascript tests for the latest stable release at:
http://www.progclub.org/pccipher/js/test/test.html
And the latest development snapshot (i.e. trunk) at:
http://www.progclub.org/pccipher-dev/js/test/test.html
PHP tests
Note: the PHP testing links have been removed, because they place the server under load, and at the moment ProgClub is being slashdotted by http://programming.reddit.com/ and we can't have everyone clicking on them!
Update: We're not being slashdotted anymore, but I think I'll leave the links out anyway. If you're clever you'll be able to find them for yourself. Better to run the tests on your own system.
Notes for implementers
If you are interested in incorporating the ProgClub pccipher into your project, here's what you need to know:
Javascript implementation
An example Javascript implementation:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript" src="http://www.progclub.org/pccipher/js/lib/phpjs/phpjs.js"></script>
<script type="text/javascript" src="http://www.progclub.org/pccipher/js/src/pccipher.js"></script>
<script type="text/javascript">
$(document).ready(function(){
var key = "my key (*your* key should be longer and more random)";
var text = "my text";
var data = pccipher_encrypt( text, key );
text = pccipher_decrypt( data, key );
alert( text );
});
</script>
</head>
<body>
<h1>Pccipher example</h1>
</body>
</html>
PHP implementation
You probably want to setup an svn:externals to:
http://www.progclub.org/svnro/pcrepo/pccipher/tags/latest
Then you can use the PHP library with something like this:
<?php error_reporting( E_ALL ); ini_set( 'display_errors', 'On' ); require_once( dirname( __FILE__ ) . '/path/to/pccipher/php/src/pccipher_auto.php' ); $key = "my key (which isn't half as randomly awesome as *your* key will be)"; $text = "my text"; $data = pccipher_encrypt( $text, $key ); $text = pccipher_decrypt( $data, $key ); echo "<p>" . $text . "</p>"; ?>
