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The invocation property states-- Please select the correct response
for a subject to be able to read and write to an object, the subject's clearance and the object's classification must be equal
a subject cannot read data from a lower integrity level
A subject cannot write data to an object at higher integrity level
A subject cannot request service from User at higher integrity level
The invocation property is related to the Biba model. The Biba model is focused on integrity. Statement one is focused on confidentiality Statement two is Biba related but it is the simple integrity axiom. Read for either Biba or BLP is always SIMPLE Statement three is Biba related but it is the * integrity axiom. Statement four is the correct answer
Answer updated, the explaintion above is out of date.
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