Media Wonk

Muslix strikes again - January 22, 2007

The hacker who calls himself Muslix64, who announced the first crack of an AACS-encrypted HD DVD last month, has stuck again, this time against Blu-ray.
In posts to the doom9 forum over the weekend, Muslix said he used a variation of "known-plaintext attack" to uncover the decryption keys for Lionsgate's Lord of War.
Others then posted the keys for about a half dozen other Blu-ray titles, including the German-language version of Fox's Ice Age: The Meltdown.
None of the titles in question were protected by BD+, so it is unclear whether it would have prevented the attack.
Interestingly, Muslix managed his Blu-ray hack without using any actual Blu-ray equipment.
Instead, according to his posts, he worked only from data captured from a memory dump and an encrypted media file provided by a second hacker, known as Janvitos, as well as his knowledge of the Blu-ray file format gleaned from the public documentation.
He then provides details of how he used that information to deduce where the keys would be located in the memory dump. 

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