its me kalaiyarasan,i came across that the obfuscation is more secure code conversion .what is the use of obfuscation?how can we do it in java based web application.How it is secured?
Java Obfuscators are tools that take class files and munges them -- so that (1) all profiling information are removed, and (2) makes them very complex or weird. The final class files still work, but they become very difficult to almost impossible to decompile. The main target is to break all known decompilers that are available.
I wouldn't call the technique secure, but if you can break the decompiler, it will make it more difficult to have your code decompiled, and hence, have your code viewed and/or changed.
As Henry wrote, obfuscation is not security. It really relies on what the security folks call SBO, security by obscurity. It means storing your holiday gift list in a file called "thoughtsOnParitalDifferentials.txt" rather than "holidaygifts.txt"
Its like locking the door to your car, it slows down amateur car thieves. It does nothing to slow down a professional.
If you want your software to be secure, run it on a server and don't give it to anyone, do a Software As Service type deal.
