[Gunderak]

Little confused, I was thinking of creating a character map eg, a is equivalent to "7", b "K" and so on, but eh this way looked better.
And the reason I divide by 2 then multiply etc is to make it more confusing.
If someone was trying to crack the string, without knowing the script they could probably tell it's using base64, then when they decipher it they'd see hang on each letter represents a number, and catch on. Where as this, it represents a number, but the number is "hashed" sort of.
Never actually tried to encrypt information properly before, so this was more of a learning curve.