SC-3(1)

Requirement

Employ hardware separation mechanisms to implement security function isolation.

Discussion

Hardware separation mechanisms include hardware ring architectures that are implemented within microprocessors and hardware-enforced address segmentation used to support logically distinct storage objects with separate attributes (i.e., readable, writeable).

NIST 800-53A Assessment Guidance

Examine

[SELECT FROM: System and communications protection policy; procedures addressing security function isolation; system design documentation; hardware separation mechanisms; system configuration settings and associated documentation; system audit records; system security plan; other relevant documents or records].

Interview

[SELECT FROM: System/network administrators; organizational personnel with information security responsibilities; system developer].

Test

[SELECT FROM: Separation of security functions from non-security functions within the system].

ID	Assessment Objectives
SC-03(01)	hardware separation mechanisms are employed to implement security function isolation.

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