[Mono-dev] Mono and Obfuscation

["Andrés G. Aragoneses [ knocte ]]

Jonathan Pryor escribió:
> 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).

Doesn't it happen that an obfuscated IL causes the JIT to generate 
obfuscated native code (at least if we consider the normal native code 
as not being obfuscated itself)?

Regards,

	Andrés	[ knocte ]

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