QI. In relation to Non-Repudiation protocols explain how fairness is provided? b) Protocol verification techniques fall into two categories, Non-Logical and Logical. Compare both techniques under the...

Extracted text: QI. In relation to Non-Repudiation protocols explain how fairness is provided? b) Protocol verification techniques fall into two categories, Non-Logical and Logical. Compare both techniques under the headings: (1) Speed of analysis and (2) Best for (as in best at detecting/proving what). c) Which key is used to provide authentication between two entities A → B using asymmetric cryptography? Provide an example using suitable notation. d) Zero Knowledge protocols are based on low powered symmetric algorithms! Is this statement True or False? Explain why you selected your answer. e) What mechanism is generally used to protect against Man in the Middle (MITM) attacks? Provide an example of the mechanism using notation. In relation to SSL, what mechanism is used to detect message modifications to the steps used to create/share the session key. Explain how this is used. (6 What is not required when the Three-Way X.509 Authentication service is used? h) With Certificates what is the CRL used for? i) Éxplain with the aid of a diagram what a Digital envelope is, and how it is used. Which form of network protection, Link or End-to-End, is used to facilitate a VPN. Explain your answer.