Quote:
Originally Posted by evdberg
But to calculate the processing key you still need the device key(s) ... and that's my whole point.
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There are two ways to get Processing keys: using (1) Device Key(s) or (2) hacking them directly out of the software player. I'm not claiming you (or WinDVD) don't/doesn't need Device Keys to get the Media Key. The point is: you should only
release the Processing Key or Last Sub Device key.
When I've got more time I may be able to explain this better. Personally I believe its much more likely we will only find
one Device Key (while we should release a sub device key or processing key) when hacking a software player. But I can only explain that while also explaining the full subset difference algo.
arnezami