Hi! Job,
In my encryption I only applied 1 encryption key, for more security you can have more than 1 encryption key. Yet, this key not limited to integer, you can have some kind of string. But if you cool encryption I thing the Crytography SDK will be the most coolest.

As a result, you can have ?? million of combination output. In my point of view, in this world there is nothing so call secure. Nothing is perfect... yet there still have somebody call himself as cracker to crack your encrypted data.