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Posted by Gordon Burditt on 05/26/07 07:26
>Our project is a IPPBX system which we want to bind it to a particular
>MAC address that will be the server .
The term for this is Defective By Design. It probably violates a
Microsoft patent.
Oh, yes, you do know that many servers have multiple MAC addresses,
don't you?
>No other system can use the code..
It doesn't matter how much you encrypt the code: you have to include
the key to the code along with the code, assuming that the *AUTHORIZED*
server can actually use it (Letting the authorized server actually
use the code is probably a very bad idea). There's this outfit
called the AACS that tries to design copy-protection schemes for
HD-DVD. They failed, so they changed the key. The new key was
cracked very quickly, even before the DVDs with the new key got
released.
You really think you can do better? I'll give you a few hints:
- Don't distribute it.
- Don't even write it in the first place.
- Destroy all the copies of it.
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