The function of access control is to control which

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7. The function of access control is to control which _________ have access to which object. a. Action b. Process c. Subject d. Object 8. A loss of Property can be considered as one of risks in the results of CIA impact 9. A device that performs encryption and decryption in cryptography 10. One of the basic component which refers to prevent from denial of service____________ Part B : Answer All Questions ( 2 *5 = 10 Marks) 1. Define Cryptography, Cryptanalysis, Cryptology. 2. Explain the Access Control Matrix 3. Distinguish between Authentication and Authorization process? 4. What are the implementation issues of the security in the organisation? 5. Consider a registration system with three users: User 1, User2, and User3. User3 owns the file File3, and User1 and User2 can read it. User2 can read and write the file File 1, which User1 owns, but User3 can only read it. Only User1 can read and write the file File2, which the user 2 owns. Assume that the owner of each of these files can execute it. a. Create the corresponding access control matrix. b. User 1 gives user3 permission to remove read File1 , and User3 removes user1 ability to read File3. Show the new access control matrix.
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