Welcome to HBH! If you had an account on hellboundhacker.org you will need to reset your password using the Lost Password system before you will be able to login.
quantum cryptography
-cL wrote: No, I want to try cracking it before I read about it :P
I don't think you have any clue on how hard it is to break algorithems (real ones, not the "look I made a vb.NET encoder").
You need pattern analyzers, mega-computers ("gibsons"), highly advanced mathematics (talk to mozzer about Math, if you don't understand him, you're toast) and much much more.
http://en.wikipedia.org/wiki/Quantum_cryptography
Not only math, but also chemistry/science is needed to "solve" this encryption. Trust me when I say you can't break it.