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HD-DVD anti-copy encryption cracked

December 28th, 2006

A programmer going on by the name muslix64 has posted a Java-based application that will free the encrypted video from its protection.

HD-DVD uses the AACS copy-protection system to encode content. AACS stands for Advanced Access Content System, uses two keys – a title key and a player key. The discs are designed with several player keys on them in a hash with title keys, providing an encryption algorithm.

According to a post on a Doom9 forum, muslix64 published an open-source Java application called BackupHDDVD that searches the computer memory for the movie’s key and decrypts the movie right off of the EVO files.

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