[Mono-dev] Mono and Obfuscation

[pablosantosluac]

Our experience with obfuscation is quite possitive: we use dotfuscator and 
it works on Mono...


----- Original Message ----- 
From: "Jonathan Pryor" <jonpryor at vt.edu>
To: "APS" <dev.malst at apsystems.it>
Cc: <Mono-devel-list at lists.ximian.com>
Sent: Friday, February 02, 2007 12:04 PM
Subject: Re: [Mono-dev] Mono and Obfuscation


> On Thu, 2007-02-01 at 16:38 +0100, APS wrote:
>> I agree with you but my boss insist to find some level of protection
>> from reverse engineering at least at some core library and I was
>> investigating about how to do that.
>
> As an alternative to obfuscation, use encryption.  You can encrypt an
> assembly, decrypt it into memory, and then use Assembly.Load(byte[]) to
> load the decrypted assembly.
>
> This isn't a "real" solution for a number of reasons (people will be
> able to decrypt the assembly themselves, as the key will need to be
> bundled with your app; system memory & possibly the SWAP file will
> contain the decrypted contents; anyone with a debugger will be able to
> attach to the process in order to view the decrypted memory, etc.), but
> it's more portable than code obfuscation, and the same problems also
> apply to code obfuscation (people can always debug the process and view
> the JIT-generated code to see the unobfuscated assembly).
>
> - Jon
>
>
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