Index ⇒ General Topics ⇒ Encryption

[freakboy]

Any encryption experts here? I'm trying to make an installer for a small game, but there is one file which gets generated once you enter the serial number. I dont have problems with that, but I dont know what is being hidden in that encrypted file besides the serial. Could someone take a look at it?

http://www.megaupload.com/?d=C29TABE3

The file is in C:\Documents and Settings\*user*\Application Data\Rovio\Angry Birds\settings.lua
once you delete it, the game asks for serial again so enter any serial

[user43687]

Hi freakboy,

LUA file? Seems you need a LUA Decompiler to read it You can download a good LUA Decompiler here:

http://luaforge.net/projects/luadec51/

Although I use another one myself I think that will help you.

Cheers,

The UberLamer

[freakboy]

luadec51 doesnt seem to decompile it.

[3dslUserLoad]

Any .lua file starts with these 16 bytes (magic string):

Code: Select all

25 AE B3 04¦C5 E7 FE 8A¦3E 38 FA 00¦56 B1 1C 39


and all filesizes are 16-byte aligned.

Therefore it seems that the game uses a strong encryption algorithm for all .lua files.
It could be troublesome to crack it. Is it this worth?

[MasteromaN]

Hey 3dslUserLoad!

I sent you a pm in october. Why don't you want to read it??

[freakboy]

Any .lua file starts with these 16 bytes (magic string):

Code: Select all

25 AE B3 04¦C5 E7 FE 8A¦3E 38 FA 00¦56 B1 1C 39


and all filesizes are 16-byte aligned.

Therefore it seems that the game uses a strong encryption algorithm for all .lua files.
It could be troublesome to crack it. Is it this worth?

Well, if it uses strong encryption then its not worth it. Thanks for replies.