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Problem
(a) Distinguish between passive and active attacks.
(b) Give two reasons why it is important to organise security awareness programs for users.
(c) Describe how symmetric cryptography provides
i. confidentiality ii. authentication.
(d) What are the two types of operations used by symmetric cryptography?
(e) Justify Kerchoff's principle.
(f) Which cryptanalytic attack is almost always theoretically feasible?
(g) Mention the four requirements that have to be satisfied for the one-time pad algorithm to provide unconditional security.
(h) Why is it that the one-time-pad algorithm provides unconditional security?
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Problem a) Consider a 1000 Mbps Ethernet with a single Store-N-Forward switch mid-way in the path between two nodes A and B. Assume that there are no other nodes on the network
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Question : a) Below is a capture of an Ethernet II frame which contains an IPv4 packet and a TCP segment. Give the source MAC address for the frame in hexadecimal; the source I
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