Request for a good protection scheme in Java

[LaDidi]

@DaGoN:
Hi,

I think you're a funny guy...
Ask here IF there's a solution to avoid to byte patching ? Ha, Ha !
You can't...

Obfuscation is a good beginning.

Regards.

[DaGoN]

Hi LaDidi,
you say: "Obfuscation is a good beginning.", exactly, a beginning... but i thought a little bit of advanced

Nitallica says: "if it run you can crack it". I know... i know

Actually, my idea was to use the hash of signed classes in jar file and create an hashtable to map some methods of some important classes.

Theory:

PHP Code:


Manifest-Version: 1.0
Created-By: 1.0

Name: license.class
SHA1-Digest: GLCkANwxP5fHNvDWMsjZDnHtPJg=

name: mainprog.class
SHA1-Digest: PFAwZkhDJwjBlYWxR4OT8FTx1NU=

name: another.class
SHA1-Digest: hZ5BVt7sHyG7rWYWm4eZVBXtfgY= 

name: invoker.class
SHA1-Digest: UiJgkvDfAHhOJpg++oVYEGlCV9c=

main class methods:
calculate
save 


Always in theory, if i use the license.class hash as a key to crypt the name of methods and i put it inside an hashtable of invoker.class and i call them
through it?

If you patch license.class the program flow is compromised...

What do you think about it?

Bye,
DaGoN