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Description / Abstract:
This standard specifies an architecture for encryption of data
in random access storage devices, oriented toward applications that
benefit from wide encryption-block sizes of 512 bytes and
above.
Purpose
This standard specifies an architecture for media security and
enabling components. Wide encryption blocks are well suited to
environments where the attacker has repeated access to
cryptographic communication or ciphertext, or is able to perform
traffic analysis of data access patterns. The standard is oriented
toward fixed-size encryption blocks without data expansion, but
anticipates an optional data expansion mode to resist attacks
involving data tampering.