how lock my program?

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C#

hello

how lock my program than no one can, decompile exe file and access source data

my project is in c#, sqlserver

Posted 21-Dec-11 9:30am

faezun

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RaviRanjanKr · Answer 1 · 2011-12-21T09:37:00

Solution 1

Try
How do I protect my C# code against reverse engineering?[^]
Defend Your Code with Top Ten Security Tips Every Developer Must Know[^]
Expert Tips for Finding Security Defects in Your Code[^]

Posted 21-Dec-11 9:37am

RaviRanjanKr

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Wendelius 21-Dec-11 15:42pm

5+, we provided the same link :)

RaviRanjanKr 21-Dec-11 16:04pm

Thanks :)

Wendelius · Answer 2 · 2011-12-21T09:41:00

Basically you cannot do this in a bulletproof way. Everything that a computer can run can eventually be decompiled. One old, but quite good blog: http://blogs.msdn.com/b/ericgu/archive/2004/02/24/79236.aspx[^]

However even though an unmanaged DLL is offered as a 'safe' way in the blog, it can be decompiled. For example Visual Studio debugger can easily show the code of an unmanaged DLL in assembler

fjdiewornncalwe · Answer 3 · 2011-12-21T09:42:00

What you are thinking of is obfuscation. How to obfuscate C#[^]
Please note that obfuscation just makes decompiled source rather difficult to figure out, but it's never impossible for someone to do it. Think of it as a very secure password versus a plain text simple dictionary password. One is much easier to figure out than the other, but given enough time and motivation both can be discovered.

how lock my program?

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