String in the exe file.

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Boki Digtal - 23 Jul 2007 08:59 GMT

Hi All,

I have some special strings in c# code, and I complier it to exe file.

I opened the exe file by a UltraEdit, I can't find the string I define
in code.

Does that mean other people can't find the string as well?

Best regards,
Boki.

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ClayB - 23 Jul 2007 09:30 GMT

Someone could probably use tools like ILDASM.EXE (ships with .NET SDK)
or .Net Reflector (http://www.aisto.com/roeder/dotnet/) to see strings
in an .NET exe file.

=====================
Clay Burch
Syncfusion, Inc.

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Boki Digtal - 23 Jul 2007 10:16 GMT

> Someone could probably use tools like ILDASM.EXE (ships with .NET SDK)
> or .Net Reflector (http://www.aisto.com/roeder/dotnet/) to see strings
[quoted text clipped - 3 lines]
> Clay Burch
> Syncfusion, Inc.

OK, sounds very easy.

What's the .NET programmer's solution ?

Use a obfuscator?

Thanks!
Boki.

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Mark Rae [MVP] - 23 Jul 2007 10:49 GMT

> Use a obfuscator?

Obfuscation will probably keep out the merely curious, but will certainly
not stop a determined hacker...

You could always encrypt the strings before storing them...

Signature

Mark Rae
ASP.NET MVP
http://www.markrae.net

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Mihai N. - 23 Jul 2007 10:12 GMT

> I have some special strings in c# code, and I complier it to exe file.
>
> I opened the exe file by a UltraEdit, I can't find the string I define
> in code.

They are stored as UTF-16.

This means that
"Hello"
will not be stored as
48 65 6c 6c 6f
but as
48 00 65 00 6c 00 6c 00 6f 00

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Mihai Nita [Microsoft MVP, Windows - SDK]
http://www.mihai-nita.net
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String in the exe file.

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