Originally Posted by pdurrant
Open Source DRM will remain 'secure' for a very, very short time.
I guess we have different descriptions of "secure". To me secure means that you can get to the plaintext contents of a file unless you have the key, even if you know the algorithm.
With ANY encryption, Key management is the weakest point. This is why eReader used the customers credit card number as the key... the figured people would not be willing to share that. Of course, knowing that you can use your credit card to decrypt a file and then share IT rather than your credit card.
So, Adobe DRM is not 'secure' (by your rendering) either. The fact that it is closed source didn't change the fact that once they key is available a cyphertext can be turned into plaintext very easily.