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iam developing WPF product. I want to protect my .net source code from reverse enginering Please advice me
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Select only with “Anti IL Dasm” and “Anti Tamper”, that is enough for making it hard enough to reverse engineer for the decompilers. After you click on Done, go to Protect tab and click on Protect button. You can find the protected DLL or EXE in the output directory selected.
You can't prevent it. You can't protect your app from being decompiled, but you can make it much harder to understand decompiled code with tools like proguard . Compiled classes contain variable names, class names, etc. so it's pretty simple to decompile them to get almost original code.
Keep the DLL in a resource and expose it in the file system (under a suitably obscure name, perhaps even generated at run time) only when running. Hide all real functions behind a factory method that exchanges a secret (better, proof of knowledge of a secret) for a table of function pointers to the real methods.
It is also not possible to decompile all programs. Furthermore, it is not easy to separate data and code because both are represented similarly in most current computer systems. A type of reverse engineering, a decompiler performs the opposite operations of a compiler.
It can reliably decompile any . NET assembly into equivalent C# or IL code. The decompiler supports multiple formats including libraries (. dll), executables (.exe), and Windows metadata files (.
As per my understanding, we can reverse engineer any compiled dll whose source language is a . net language like c#,vb.net. There are many tools availablein the market for obfuscation and prevent reverse engineering of the dll.
You would use an obfuscator. There are a lot of them on the market, just google.
For example, Visual Studio used to ship with the Dotfuscator Community Edition. I never used it, so I can't say anything about its quality.
This blog post shows the possible ways to try to prevent reverse engineering: http://blogs.msdn.com/b/ericgu/archive/2004/02/24/79236.aspx
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