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  2. Advanced Access Content System - Wikipedia

    en.wikipedia.org/wiki/Advanced_Access_Content_System

    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).

  3. Security of Advanced Access Content System - Wikipedia

    en.wikipedia.org/wiki/Security_of_Advanced...

    The Processing Key for the first Media Key Block version, which could be used to decrypt any AACS protected content released up to that point, was found and published on the Internet at the Doom9 forums. AACS Licensing Authority sent multiple DMCA takedown notices to web sites hosting the key. [15]

  4. AACS encryption key controversy - Wikipedia

    en.wikipedia.org/wiki/AACS_encryption_key...

    A controversy surrounding the AACS cryptographic key arose in April 2007 when the Motion Picture Association of America and the Advanced Access Content System Licensing Administrator, LLC (AACS LA) began issuing cease and desist letters [7] to websites publishing a 128-bit (16-byte) number, represented in hexadecimal as 09 F9 11 02 9D 74 E3 5B ...

  5. Encrypted Title Key - Wikipedia

    en.wikipedia.org/wiki/Encrypted_Title_Key

    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.

  6. Device Keys - Wikipedia

    en.wikipedia.org/wiki/Device_Keys

    Device Keys play a role in the cryptographic key management procedure in the Advanced Access Content System (AACS) specification. This specification defines a method for protecting audiovisual entertainment content, including high-definition content.

  7. Media Key Block - Wikipedia

    en.wikipedia.org/wiki/Media_Key_Block

    Media Key Block structure. Even though it seems a simple mechanism the MKB key which is found in the physical support of the disc follows a complex structure. The MKB is distributed in blocks that contain the version of the Media key, the list of devices that have been revoked, a field to authenticate the MKB, and other fields that specify parameters corresponding to the decrypting algorithm ...

  8. AACS - Wikipedia

    en.wikipedia.org/wiki/AACS

    AACS may refer to: . Advanced Access Content System, a standard for content distribution and digital rights management . AACS encryption key controversy; American Association of Christian Schools, an organization that unifies individual Christian schools and statewide Christian school associations

  9. Portal:Internet/Selected article/16 - Wikipedia

    en.wikipedia.org/wiki/Portal:Internet/Selected...

    The AACS encryption key controversy, also known as the AACS cryptographic key controversy, arose in April 2007 when the Motion Picture Association of America and the Advanced Access Content System Licensing Administrator, LLC (AACS LA) began issuing demand letters to websites publishing a 128-bit number, represented in hexadecimal as 09 F9 11 ...