Re: obfuscating / protecting LUA code

[Erik Hougaard <erik@...>]

bert wrote:
> Hi,
>  
> I'm working on a piece of software in LUA that might be part of a 
> commercial application later on (or might become the application by 
> itself, since LUA is so nice...) and I'm trying to find out if there 
> is a good way to protect LUA code from the outside world? Of course I 
> could compile it using luac, but that wouldn't stop somebody from 
> disassembling it and getting the source code?
>  
> Thanks,
> Bert
>  
>
> ------------------------------------------------------------------------
> New Yahoo! Messenger with Voice. Call regular phones from your PC 
> <http://us.rd.yahoo.com/mail_us/taglines/postman5/*http://us.rd.yahoo.com/evt=39666/*http://messenger.yahoo.com> 
> and save big. 

There are two ways,

1. Encrypt your source files (either bytecode or real source) - This is 
the only real way.

2. Obfuscating your bytecode files (luac output) be different means. you 
could change lopcodes.h so you use your own opcodes-order ... that would 
require a fair amount of analyse.

/Erik