Write a set of rules combining the secrecy controls of the BellLa Padula model with the integrity controls of the Biba model

Please answer ALL following discussion questions in details and give your asnwers/thoughts along with proofs to support your answers. Don’t forget to state your references.

Question 1: Write a set of rules combining the secrecy controls of the BellLa Padula model with the integrity controls of the Biba model.

Question 2: Demonstrate a method for limited transfer of rights in the GrahamDenning model. A limit of one is adequate. That is, give a method by which A can transfer to B right R, with the provision that B can transfer that right to any one other subject. The subject to which B transfers the right cannot transfer the right, nor can B transfer it again.

Question 3: Does the standard Unix operating system use a nondiscretionary access control? Explain your answer.