Concerned that governments world-wide have backdoored all well-known crypto libraries? Never fear! The Ghost in the Shellcode team proudly presents crypto.php (ver 0.000001). This high quality PHP library utilizes state of the art cryptographic techniques like "xor", "security through obscurity", and a "crap-coding style" to ensure only you can access your data. Even better, it's closed source so you can be sure no-one else has tampered with it.
Please check out the script below and be amazed at how it works to both encrypt, and decrypt. Indeed, it will even correctly decrypt the same encrypted payload. This is truly high quality software.