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Different virtualisation level for some functions
Sergey Lukin 1 Jan 2007 17:24:00

Hi,

I need to protect some of functions in my app much more strongly than the rest of application. Those functions are quite small and not affect the performance. As I understand I can protect them more severe using {$I crypt_start.inc} / {$I crypt_end.inc}. My default virtualisation level for whole project is 20%. Can I increase somehow the virtualisation level for my functions that I protect with {$I crypt_start.inc} / {$I crypt_end.inc} blocks?

#1700
StrongBit Team 2 Jan 2007 4:11:18

Hello

you can’t setup different virt level for different blocks. usually good choice - use 20-30% virtualization. this value give good compromise between security and performance.

Thanks
#1707
Paul Tankard 2 Jan 2007 5:27:20

Being able to set a virtualization level in the crypt macro blocks would be a good feature indeed.
#1710
Sergey Lukin 2 Jan 2007 6:13:31

So how the whole process looks like? I protect the functions with {$Icrypt}, compile the program and then run EXECryptor. What does it do then? Does it virtualize only functions protected with {$I}? Or whole file? And what about other options? Does it perform resource compression/encryption after that?
#1711
StrongBit Team 2 Jan 2007 8:29:20

info[at]mobilnova[dot]com wrote
Does it virtualize only functions protected with {$I}?

Yes.

info[at]mobilnova[dot]com wrote
And what about other options? Does it perform resource compression/encryption after that?

EXECryptor will compress whole file, just select needed options in "Compression" group.

Regards,
StrongBit Team
#1719
Sergey Lukin 2 Jan 2007 8:39:48

I use ’Compress resources’, ’Compress code and data’, ’use maximum compression’ and ’strip relocaltion’ options but it does not seem to compress the rest of the file...
#1722
StrongBit Team 2 Jan 2007 15:10:16

info[at]mobilnova[dot]com wrote
I use ’Compress resources’, ’Compress code and data’, ’use maximum compression’ and ’strip relocaltion’ options but it does not seem to compress the rest of the file...

After the code transformation its size will increase by a couple of dozens times. Please, check your protection log file to know compression state, like this:
Compress code ...
Compress resource ...
Done: 587912 --> 469433 bytes (79%)


Kindest regards,
StrongBit Team

#1731


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