It doesn't solve your problem, but if you decide to roll your own solution, you might want to look at this node. I did that after reading this thread because I was curious how something like what you're asking for would work.
In reply to Re^3: Encrypting source code :(
by kschwab
in thread Encrypting source code :(
by bliako
| For: | Use: | ||
| & | & | ||
| < | < | ||
| > | > | ||
| [ | [ | ||
| ] | ] |