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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).
The AACS system relies on a subset difference tree combined with a certificate revocation mechanism to ensure the security of high definition video content in the event of a compromise. Even before AACS was put into use, security researchers expressed doubts about the system's ability to withstand attacks. AACS decryption process
The AACS LA announced on April 16 that it had revoked the decryption keys associated with certain software high-definition DVD players, which will not be able to decrypt AACS encrypted disks mastered after April 23, without an update of the software.
An illegal prime is an illegal number which is also prime.One of the earliest illegal prime numbers was generated in March 2001 by Phil Carmody.Its binary representation corresponds to a compressed version of the C source code of a computer program implementing the DeCSS decryption algorithm, which can be used by a computer to circumvent a DVD's copy protection.
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 The MKB is distributed in blocks that contain the version of the Media key, the list of devices that have been revoked, a field to authenticate the MKB, and other fields that specify parameters corresponding to the decrypting algorithm ...
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
A money market account (MMA) is a middle ground between checking and high-yield savings accounts. They're offered by traditional banks, online banks and credit unions as a way to earn higher ...
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.