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"A lot of people try to attack the software, I'm attacking the data!
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Written by Daniel   
Wednesday, 24 January 2007 07:11
Blu-ray Encryption Defeated
Marcus Yam (Blog) - January 23, 2007 6:49 PM
DailyTech

Lord of War gets defeated by high-definition hackers
The hacker who cracked HD DVD strikes again by defeating Blu-ray Disc encryption


Late last year, a crafty individual who goes by the name “Muslix64” circumvented the copy protection scheme used to protect HD DVD. Given the similarities between the copy protection methods used in the high-definition optical formats, it was only a matter of time before Blu-ray Disc’s protections would be bypassed. However, Muslix64 has no access to Blu-ray hardware, limiting his exploit methods to HD DVD. That is, until Muslix64 came across some specific data for Blu-ray Disc, allowing him to apply his methods to the yet-uncracked format.

Another individual interested in Blu-ray’s protection scheme, “Janvitos,” who also participates in the same online forum where Muslix64 revealed his HD DVD work, posted a message showing the directory structure from a Lord of War Blu-ray Disc movie. Janvitos extracted the information by going through his system’s memory with WinHEX after playing the movie on his computer using WinDVD.

The memory dump information caught the attention of Muslix64, who replied to the thread saying, “In less [than] 24 hours, without any Blu-Ray equipment, but with the help of Janvitos, I managed to decrypt and play a Blu-Ray media file using my known-plaintext attack.” Muslix64 then posted a file as an example of his decryption work, though he did say that his method does not address BD+.

Muslix64 then went on to explain how he was able to accomplish this feat with his plaintext attack method. “This is a very basic, but [powerful] crypto attack that I have used to decrypt both [HD DVD and Blu-ray] formats,” he wrote. “After reading posts of people trying to get the keys in memory, I realized, I have a different way of looking into the problem…A lot of people try to attack the software, I'm attacking the data!”   Much More...

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