Two Rivals – Both Cracked by Same Person!?

There is news that the copy protection technology used by Blu-ray discs has been cracked by the same hacker who broke the DRM technology of rival HD DVD discs last month. The coder known as muslix64 used much the same plain text attack in both cases. By reading a key held in memory by a player playing a HD DVD disc he was able to decrypt the movie been played and render it as an MPEG 2 file.

The latest Blu-ray hack was performed by muslix64 using a media file provided by Janvitos, through the video resource site Doom9, and applied to a Blu-ray copy of the movie Lord of War. In this case, muslix64 didn’t even need access to a Blu-ray player to nobble the DRM protection included on the title.

Both HD DVD and Blu-ray use HDCP (High-Bandwidth Digital Content Protection) for playback display authentication and similar implementations of AACS (Advanced Access Content System) for content encryption.

More details at Arstechnica article, Bruce Schneier’s blog, Freedom to Tinker blog, and The Register article.

Share this... Tweet about this on TwitterShare on LinkedInShare on FacebookShare on Google+Email this to someone

Leave a Reply