D
data decryption field (DDF)

Used in EFS encryption to store the symmetric key used to encrypt and decrypt a file stored with the encryption attribute enabled. The DDF contains the file encryption key used to encrypt a file and is encrypted using the user's public key. Only the user who encrypted the file can then decrypt the DDF and retrieve the file encryption key and decrypt the file.

Data Link layer

Layer 2 of the OSI model. The Data Link layer is responsible for the physical addressing of computer. It contains two sublayers: the Logical Link Control layer and the Media Access Control (MAC) layer. The MAC address derives its name from the second sublayer.

data recovery field (DRF)

Used in EFS encryption to store the symmetric key used ...

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