You are a security consultant for a contracting agency the a

You are a security consultant for a contracting agency; the agency chief wants to ensure he prevents subjects from writing information to a higher level than the subject’s security clearance. He also wants to ensure subjects from a higher level clearance cannot read information at a lower level. They require some type of access control models for their information systems to protect the integrity of their data. What is your best recommendation for a model to use?

A. Bell LaPadula

B. Biba

C. State Machine

D. Clark Wilson

Solution

We Know Bell LaPadula model is for enforcing access control in military and government applications.

Biba Model is for enforcing Security standards for data integrity.

State Machine Model is used for designing simple models.

Clark Wilson is to provide integrity policy for a Computing System.

Hence Biba Model is suitable as we wanted data Integrity as per the requirement