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AACS uses cryptography to control and restrict the use of digital media. It encrypts content under one or more title keys using the Advanced Encryption Standard (AES). Title keys are decrypted using a media key (encoded in a Media Key Block) and the Volume ID of the media (e.g., a physical serial number embedded on a pre-recorded disc).
libdvdcss (or libdvdcss2 in some repositories) is a free and open-source software library for accessing and unscrambling DVDs encrypted with the Content Scramble System (CSS). libdvdcss is part of the VideoLAN project and is used by VLC media player and other DVD player software packages, such as Ogle, xine-based players, and MPlayer.
On May 17, one week before any discs with the updated processing key had reached retail, claims were reported of the new keys having been retrieved from a preview disc of The Matrix Trilogy. [34] On May 23, the key 45 5F E1 04 22 CA 29 C4 93 3F 95 05 2B 79 2A B2 was posted on Edward Felten 's Freedom to Tinker Blog [ 35 ] and confirmed a week ...
Cyberlink, the company which sells the PowerDVD player, stated that their software could not have been used as part of these exploits. [19]On April 16, 2007, the AACS consortium announced that it had revoked the Device Keys used by both Cyberlink PowerDVD and InterVideo WinDVD, and patches were made available for users which provided uncompromised encryption keys and better security for the keys.
the encryption of keys for the authentication handshake. In order to decrypt a DVD-Video, the player reads the disc-key-block and uses its player-key to decrypt the disc-key. Thereafter, the player reads the title-keys and decrypts them with the disc-key. A different title-key can be assigned for the Video Manager and for each Video Title Set ...
BD+ is a component of the Blu-ray Disc digital rights management system. It was developed by Cryptography Research Inc. and is based on their Self-Protecting Digital Content concept. [ 1 ] Its intent was to prevent unauthorized copies of Blu-ray discs and the playback of Blu-ray media using unauthorized devices.
Encrypted Title Key is an encrypted key that belongs to anticopy Advanced Access Content System (AACS). This key is included in the Media Key Block system and is an important part of the content protection process of Blu-ray and HD-DVD contents.
The Media Key Block (MKB) is one of the keys included inside the copying protection system AACS. This system is used to prevent Blu-ray and HD DVD formats from being copied. The system was developed by companies from the film industry and the electronics industry including IBM , Intel , Microsoft , Matsushita (Panasonic), Sony , Toshiba , The ...