The encryption algorithms for Blu-Ray and HD-DVD content have been cracked!

The processing key is one of the keys used in the process of generating the media key, the unique key that encrypts the contents of a particular DVD. Due to the encryption algorithm used in Blu-Ray and HD-DVD technologies, they keys seem to work in a hierarchial manner: If you compromise a key lower in the hierarchy, you crack media. Compromise a key higher up in the hierarchy, and you crack all of the media encrypted underneath it.. meaning that all of the new generation DVDs may be freely …

More from the front lines of the DVD content protection war - slyck.com has posted an interview with Muslix64, who cracked the copy protection of both HD DVD and Blu-Ray within a couple of weeks of work as an act of 'fair use enforcement'. When you consider the fact that you can't watch either of these kinds of DVD on anything but an HDCP High-Definition monitor (which very few people have), you have to wonder if you really have fair use of the DVDs you purchase anyway... the interview also goes on to explain how AACS works, and that by …

First HD DVDs were cracked; now Muslix64 has gone for an encore and cracked the protection on Blu-Ray DVD's so that they can be ripped in unencrypted form. It seems that he didn't even need a Blu-Ray player to figure out how to do it, he found an attack that sidesteps the AACS (Advanced Access Content System, which does anything but let you access content) by finding the key used to encrypt the media data hidden inside the cyphertext. To prove that he was successful, he posted a ripped copy of Lord of War to the Net, which was subsequently …