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These Device Keys, referred to as Kd i (i=0,1,…,n-1), are provided by AACS LA. The set of Device Keys may either be unique per device, or used commonly by multiple devices. A device shall treat its Device Keys as highly confidential. The MKB is encrypted in a subset difference tree approach. In order to decrypt it, a device must know the ...
Commercial Blu-ray Disc protection schemes. AACS. The encrypted content can only be decrypted using combination of media key (obtained from Media Key Block by one of device keys available for each reproduction devices) and the Volume ID (unique identifiers stored on each disk) of the media. BD+. The BD+ virtual machine embedded in authorized ...
Logitech Unifying receiver (older) Logitech Unifying receiver (newer) Unifying Logo The Logitech Unifying Receiver is a small dedicated USB wireless receiver, based on the nRF24L-family of RF devices, that allows up to six compatible Logitech human interface devices (such as mice, trackballs, touchpads, and keyboards; headphones are not compatible) to be linked to the same computer using 2.4 ...
At the study’s conclusion, researchers found that participant data collected through a smartwatch detected symptoms of Parkinson’s, including significant declines in measures of gait, an ...
Key Code Qualifier is an error-code returned by a SCSI device. When a SCSI target device returns a check condition in response to a command, the initiator usually then issues a SCSI Request Sense command. This process is part of a SCSI protocol called Contingent Allegiance Condition. The target will respond to the Request Sense command with a ...
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Title keys are decrypted using a combination of 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 principal difference between AACS and CSS (the DRM system used on DVDs) lies in how the device decryption keys and codes are organized.
Formally, a Key Selection Vector is a 40-bit vector containing 20 ones and 20 zeros, and is used to specify the random challenge. The Device Key Set is a collection of 40 56-bit values, and is the set of shared secrets for this protocol. During the authentication process, both parties (a transmitter and a receiver) exchange their KSVs.