Camouflaging Lua Code

It may be that someone wants to know how to do, here it is:

lua code:

local script = string.dump(

    function()

        --Content

        print("Camouflaging Done.")



    end

)



buff=""

for v=1,string.len(script) do --Convert our string into a hex string.

    buff=buff..'\\'..string.byte(script,v)

end



file=io.open('encrypted.txt','w') --Output our bytecode into ascii format to encrypted.txt

file:write(buff)

file:flush()

file:close()

Output of example:

Code:

---

\27\76\117\97\81\0\1\4\4\4\8\0\54\0\0\0\64\67\58\92\85\115\101\114\115\92\66\114\117\110\111\92\68\111\99\117\109\101\110\116\115\92\88\101\110\111\66\111\116\92\83\99\114\105\112\116\115\92\101\110\99\114\121\112\116\46\108\117\97\0\2\0\0\0\5\0\0\0\0\0\0\2\4\0\0\0\5\0\0\0\65\64\0\0\28\64\0\1\30\0\128\0\2\0\0\0\4\6\0\0\0\112\114\105\110\116\0\4\19\0\0\0\67\97\109\111\117\102\108\97\103\105\110\103\32\68\111\110\101\46\0\0\0\0\0\4\0\0\0\4\0\0\0\4\0\0\0\4\0\0\0\5\0\0\0\0\0\0\0\0\0\0\0

---

How to load this ?

Example:

lua code:

local code = '\27\76\117\97\81\0\1\4\4\4\8\0\54\0\0\0\64\67\58\92\85\115\101\114\115\92\66\114\117\110\111\92\68\111\99\117\109\101\110\116\115\92\88\101\110\111\66\111\116\92\83\99\114\105\112\116\115\92\101\110\99\114\121\112\116\46\108\117\97\0\2\0\0\0\5\0\0\0\0\0\0\2\4\0\0\0\5\0\0\0\65\64\0\0\28\64\0\1\30\0\128\0\2\0\0\0\4\6\0\0\0\112\114\105\110\116\0\4\19\0\0\0\67\97\109\111\117\102\108\97\103\105\110\103\32\68\111\110\101\46\0\0\0\0\0\4\0\0\0\4\0\0\0\4\0\0\0\4\0\0\0\5\0\0\0\0\0\0\0\0\0\0\0'



loadstring(code) ()

If anyone has any other way to do this and want to share with people, feel free :)

Att,
Diabolic

It's actually called "obfuscation". Also, anyone can replace the loadstring function with a function that will print out the raw code. It's a nice first step but you can take it much further by using obfuscation around the loader code as well, in ways other than bytecode generation.

Quote:

---

Originally Posted by DarkstaR

It's actually called "obfuscation". Also, anyone can replace the loadstring function with a function that will print out the raw code. It's a nice first step but you can take it much further by using obfuscation around the loader code as well, in ways other than bytecode generation.

---

You have any example to help ?
I only managed to get up this.

Him putting in here how to do encode would be pretty much equal to explaining people how te decode it.

Quote:

---

Originally Posted by Diabolic

You have any example to help ?
I only managed to get up this.

---

Creativity and understanding of the language constructs.

Quote:

---

Originally Posted by Tripkip

Him putting in here how to do encode would be pretty much equal to explaining people how te decode it.

---

to encode is not the same thing of decode

Quote:

---

Originally Posted by DarkstaR

Creativity and understanding of the language constructs.

---

Ok, thank you bro :)

It's interesting. Thx mate

Quote:

---

Originally Posted by Diabolic

to encode is not the same thing of decode



Ok, thank you bro :)

---

1) You're not encoding. You're not even encrypting. You are obfuscating.
2) If you know the way you are obfuscating, you know how to de-obfuscate.

It's security through obscurity.

Quote:

---

Originally Posted by Syntax

1) You're not encoding. You're not even encrypting. You are obfuscating.
2) If you know the way you are obfuscating, you know how to de-obfuscate.

It's security through obscurity.

---

I'm not an expert on it, so can I use the SciTE compiler like a method to encrypt my code ?

For example my lib looks like this when I use compile function:

http://i.imgur.com/wQ71xr7.png

But still can be loaded.

And how to decrypt this code now?

Anyways, I think this doesn't really help the community. I always like to edit/change existing scripts to my needs. Adjusting the waits for the npc chats, using another dp spot sometimes when it has the old depositer, updating stuff and so on. Or I copy & learn from existing "hard parts" like going through tp's, using levers or anything else special. People can learn by looking on the code. This "obfuscation" which now some scripters use makes that impossible...

Could someone explain what should I put in these:

lua code:

buff=""

for v=1,string.len(script) do --Convert our string into a hex string.

file=io.open('encrypted.txt','w') --Output our bytecode into ascii format to encrypted.txt

I am new and I do not understand it at all ;/ The only thing that I understand is that I have to paste my script where is "Content"

Quote:

---

Originally Posted by EverlasteR

Could someone explain what should I put in these:

lua code:

buff=""

for v=1,string.len(script) do --Convert our string into a hex string.

file=io.open('encrypted.txt','w') --Output our bytecode into ascii format to encrypted.txt

I am new and I do not understand it at all ;/ The only thing that I understand is that I have to paste my script where is "Content"

---

If you read this thread you'd know that this method of obfuscation is rather weak, but anyways, you don't need to do anything with that bit, just run the script and it will output your obfuscated string.

Quote:

---

Originally Posted by Spectrus

If you read this thread you'd know that this method of obfuscation is rather weak, but anyways, you don't need to do anything with that bit, just run the script and it will output your obfuscated string.

---

I have read the thread and many others about this but this is the only one that is working. If you don't mind I would love if you helped me with encrypting/obfuscating/coding my scripts.

Same here, still can't get it working :( I can get the bytecode from working script, but code after obfuscating isn't working

I'm getting something like that:
Error: attempt to call method 'isOpen' (a nil value)


It's the error when i'm trying to obfuscate script without obfuscating locals, when the script is fully obfuscated it works well? Any tips? I want to leave locals visible to be able configuring the script like backpack names etc.

Quote:

---

Originally Posted by xto94

Same here, still can't get it working :( I can get the bytecode from working script, but code after obfuscating isn't working

I'm getting something like that:
Error: attempt to call method 'isOpen' (a nil value)


It's the error when i'm trying to obfuscate script without obfuscating locals, when the script is fully obfuscated it works well? Any tips? I want to leave locals visible to be able configuring the script like backpack names etc.

---

you cant have mixed script like that, doesnt work

have a separate file for configuration and just dofile it on the main obfuscated file

and why would you want to obfuscate your labels funcs? if it were your library of custom functions it would be reasonable , but...

Someone should write a guide for this =) step by step , i'm really intrested.

I got it, soon i guess. I filled buff = "" with buff = "Derp.lua" and ran the script. I got a txt file starting with derp.lua then alot of numbers.

What should i do with it then? =) loadstring? and i got another script with Code= in beginning how does it work ?

well excuse me but i am having error when i run the lua on the xenobot after encoding, does anyone help me?