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RC4.php

Pure-PHP implementation of RC4.

Uses mcrypt, if available, and an internal implementation, otherwise.

PHP version 5

Useful resources are as follows:

ARCFOUR Algorithm
- Wikipedia: RC4

RC4 is also known as ARCFOUR or ARC4. The reason is elaborated upon at Wikipedia. This class is named RC4 and not ARCFOUR or ARC4 because RC4 is how it is referred to in the SSH1 specification.

Here's a short example of how to use this library:


setKey('abcdefgh');

   $size = 10 * 1024;
   $plaintext = '';
   for ($i = 0; $i < $size; $i++) {
       $plaintext.= 'a';
   }

   echo $rc4->decrypt($rc4->encrypt($plaintext));
?>

Classes

RC4: Pure-PHP implementation of RC4.

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RC4.php

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