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Zero fill

To fill unused storage locations in an information system with the representation of the character denoting “0. ”


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A channel that conveys information by writing data to a common storage area where another process can read it. A covert channel that involves the direct or indirect writing of a storage location by one process and the direct or indirect reading of the storage location by another process. Covert storage channels typically involve a finite resource that is shared by two subjects at different security levels. Covert channel involving the direct or indirect writing to a storage location by one process and the direct or indirect reading of the storage location by another process. Covert storage channels typically involve a finite resource (e. g. , sectors on a disk) that is shared by two subjects at different security levels.
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Fill device designed to securely store, transport, and transfer electronically both COMSEC and TRANSEC key, designed to be backward compatible with the previous generation of COMSEC common fill devices, and programmable to support modern mission systems.
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Procedure that reduces the magnetic flux to virtual zero by applying a reverse magnetizing field. Also called demagnetizing. The act of using a magnet to return media to its original pristine unused state.
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In some situations, a major application or general support system is intended for installation at multiple locations. The application or system usually consists of a common set of hardware, software, and firmware. Type accreditations are a form of interim accreditation and are used to certify and accredit multiple instances of a major application or general support system for operation at approved locations with the same type of computing environment.
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A pattern of binary values that is combined with some value using bitwise AND with the result that bits in the value in positions where the mask is zero are also set to zero.
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