| (I) Encryption usage: A technique for enhancing the effect of a
cryptographic algorithm or adapting the algorithm for an
application, such as applying a block cipher to a sequence of data
blocks or a data stream. (See: electronic codebook, cipher block
chaining, cipher feedback, output feedback.)
(I) System operation usage: A type of security policy that states
the range of classification levels of information that a system is
permitted to handle and the range of clearances and authorizations
of users who are permitted to access the system. (See: dedicated
security mode, multilevel security mode, partitioned security
mode, system high security mode.)
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