Blu-Ray Encrytion Cracked Page: 1
News <script type="text/javascript" src=""></script> Posted 24/01/07
Author: MikeEnIke
Source: DailyTech

Lord of War

High definition format encryption hacker "Muslix64", who cracked the HD-DVD encryption just a few weeks ago, has now cracked Blu-Ray encryption. Despite the fact that Muslix64 had no access to Blu-Ray technology, he was provided the structure of the format by one, Janvitos, who recorded the library structure of a Blu-Ray movie, which was played with WinDVD, from a program known as winHEX.

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!"

"So I spent more time analyzing the data, to look for patterns or something special to mount my known-plaintext attack," Muslix64 explains. "Because I know the keys are unprotected in memory, I can skip all the [painful] process of code reversal."

Muslix64 acheived this by analyzing the first 16 bytes of each section of the movie, which were unencrypted. Noticing a pattern, Muslix64 then used his known-plaintext attack to crack it. This method was used for Blu-Ray cracking only, but it seems that the process wasn't much different than HD-DVD.

Please note that OC3D does not condone these actions and is simply reporting the news

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