Bell-LaPadula Model

BellLaPadula

  • The Bell LaPadula Model, as a finite state machine model, controls information flow for confidentiality with two security properties:
    • Simple: no read up
    • * (star): no write down
  • The Simple Security Property states that a subject (Bob) may not read the information at a higher sensitivity level (no read up).
  • The * (star) Security Property states that a subject (Bob) may not write information to an object at a lower sensitivity level (no write down).

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