What does the (star) integrity axiom mean in the Biba model?
A.
No read up
B.
No write down
C.
No read down
D.
No write up
The Answer Is:
D
This question includes an explanation.
Explanation:
The (star) integrity axiom of the Biba access control model states that an object at one level of integrity is not permitted to modify an object of a higher level of integrity (no write up).
Source: KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, John Wiley & Sons, 2001, Chapter 5: Security Architectures and Models (page 205).
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