SC-3(5)

  • Requirement

    Implement security functions as a layered structure minimizing interactions between layers of the design and avoiding any dependence by lower layers on the functionality or correctness of higher layers.

  • Discussion

    The implementation of layered structures with minimized interactions among security functions and non-looping layers (i.e., lower-layer functions do not depend on higher-layer functions) enables the isolation of security functions and the management of complexity.

More Info

  • Title

    Security Function Isolation | Layered Structures

  • Family

    System and Communications Protection

  • Related NIST 800-53 ID

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