Academic writing

Answer the following questions in order. Don’t ask ‘how much to write’. Write as much as you need to make your answers across. You may cite outside references , if needed. Submit a single document. Q1. a. What is cryptography? b. What is public key cryptography? c. What is Data Encryption Standard (DES) d. Can an encryption algorithm be completely secure? Explain e. What is a substitution cypher? Give example to explain Q2. Look at National Institute of Standards and Technology website (or other). a. What is Role Based Access Control (RBAC)? Define and describe with examples. b. A group is a collection of users. Can ‘roles’ be different from ‘groups’? Explain c. The Sarbanes-Oxley Act establishes a set of requirements for financial systems, to deter fraud and increase corporate accountability. For information technology systems, regulators may need to know who used a system, when they logged in and out, what accesses or modifications were made to what files, and what authorizations were in effect. IT vendors responding to Sarbanes-Oxley requirements have adopted RBAC as central to compliance solutions because RBAC was designed to solve this type of problem. Explain and write your opinion. Q3. a. Define IT Asset Management. Give example of all areas of IT asset that should be included in such management, why and how. b. Look at your home and related to IT assets at your home, write an inventory and status report on the following question: What is the current state of my assets? What do I own? Where is it? What condition is it in? What is its remaining useful life? What is its remaining economic value? ( must include, a car, a laptop and an intelligent phone ).