WebCops - THE uncrackable protection (?)

[aldente]

Hello!

LinkData offers a very hard to crack copy protection, e.g. used by Brockhaus Digital Enzyklop�die (see file below) or Hyperbowl (WinXP Plus Pack).

It is used by high-quality software, and yet uncracked
It uses a system similar to Microsofts activation since Windows XP: the software can be unlocked by phone or the internet.
It works in the following way (when unlocking via phone): you say your authorization code, machine id, program id, and get an unlock code. As the authorization code is not entered into the program, it can't be checked, whether you have a guilty one.
So JUST the unlock code has to be generated!

Unfortunately I am not a big cracking expert. To get it to work, I wrote a brute forcer. It would be interesting to know, how many numbers (only numbers!) the unlock code consists of. The brute-forcer does 64 keys/s, so the right code would probably be found within less than 18 days IF it consits of 8 numbers

Here is an example application protected by WebCops v1.51:
http://eldorado.s4.cybton.com/data/brockhaus.rar

Maybe here is an experienced cracker, who can proof, the this is NOT an unbeatable protection!