AACS Responds to Cracked HD DVD and Blu-ray Disc Protections

The AACS LA, those behind the advanced access content system protecting HD DVD and Blu-ray Discs, today responded to the recent defeat of its technology.

“AACS LA has confirmed that AACS Title Keys have appeared on public web sites without authorization,” read a statement from the AACS Web site. “Such unauthorized disclosures indicate an attack on one or more players sold by AACS licensees.”

The AACS is taking the stance that the exploit is a wake-up call to all licensees to ensure that the technology is implemented securely. PC software players, such as WinDVD, are particularly vulnerable to hackers.

“This development is limited to the compromise of specific implementations, and does not represent an attack on the AACS system itself, nor is it exclusive to any particular format. Instead it illustrates the need for all AACS licensees to follow the Compliance and Robustness Rules set forth in the AACS license agreements to help ensure that product implementations are not compromised.

“AACS LA employs both technical and legal measures to deal with attacks such as this one, and AACS LA is using all appropriate remedies at its disposal to address the attack,“ the statement concludes.

A hacker named “Muslix64” circumvented HD DVD copy protection during late December, resulting in the release of pirated copies on the Internet. Less than one month later, the same hacker was able to crack the encryption on Blu-ray Discs.

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