Looking Deeper Into A .net Obfuscator

Obfuscation is confusing a hacker by means of hiding the actual code without disturbing the actual runtime nature of the program or code

. Thus while obfuscating your code you need to take care that the effect of actual code is not disturbed at any cost. This is quite a tricky mode of safeguarding one's intellectual property but so far it has been quite effective in saving unsuspecting coders and developers from hackers. Reverse engineering the most favorite tool among hackers all across the world is rendered redundant with this technology.

The basic mode of approach of obfuscation remains same be it a .NET application or any other application built on any platform. Initially obfuscation was used in Java-based products but with time its functionality was diversified to other platforms considering the robust nature and the protection it provided against de-compilation and reverse engineering. While looking deeply into the concept of .NET Obfuscation it can be inferred that obfuscation of codes and applications can be achieved with related technologies.

The intent of a .NET Obfuscator is to hide the intent of a program without changing its runtime behavior. .NET obfuscator is sometimes confused with encryption but its not encryption in true senses. Obfuscation is much better than encryption. Encryption has a big loophole as the decryption key has to be kept with the encrypted program. Thus it is like locking something and keeping the key along with the lock. It becomes much easy for a hacker to get the key and break into the code. Obfuscation is applied to the compiled .NET assemblies without disturbing the source code. Thus a .NET Obfuscator will never read or alter the source code in any manner.

The first and foremost thing that is done while obfuscating is renaming the meaningful names with non meaningful names. This process is called renaming of metadata. Thus while a hacker will be looking for clues on your code or application he will be confused and frustrated. The CLR does not care much about names thus one is free to rename it in the most weird way. There are some non essential metadata that can be removed without affecting the functionality of the application or the code that has been developed.

.NET obfuscators have been known to be the most effective and robust modes of protection from hackers. The .NET Community has been using this kind of protection to safeguard their revenues in the long run. Many organizations have taken up research and development to develop Obfuscators that have proven their worth over the years.

For more details on Code Protection technology, .net Obfuscator, .net Code Security and .net Code Security feel free to visit us at http://www.secureteam.net

Article Source: http://netobfuscator.wordpress.com/2011/11/18/net-obfuscator-an-in-depth-analysis/

by: Eran

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