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(a) Describe DES encryption with a block diagram and brief steps.
(b) How does triple DES improve security. What is the effective key length of triple DES? How can 3DES be compatible with DES?
(c) Describe a one way hash function and give an example. Give essential properties of the hash functions.
(d) Define message authentication. Explain MAC.
(e) Give three known attacks on AES encryption.
ENCAPSULATION Network interface layer adds IP datagram as data area in hardware frame. Hardware ignores IP datagram message format. Standards for encapsulation defines details
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QUESTION (a) Compare and contrast phishing and pharming attacks (b) Nowadays, web defacement may not always be visual (i) Explain web defacement (ii) What is the main
Thinking ethically is difficult without a background in moral philosophy. Asking people to embrace ethics without offering practical explanation of the efficacy of so doing, is a t
Scenario: A network with individual hosts (really, virtual machines) can run HTTP (web) servers that are available to the outside. (Here, available means the ability to read and wr
UDP ENCAPSULATION As given in the figure below, UDP packet is included in IP datagram and the IP datagram is then attached in the Frame.
Question: a) Differentiate between ‘Gross Settlement' and ‘Multilateral Net Settlement' providing suitable examples where necessary to support your answer. b) Differentia
Question 1: Why do we need a Law of Contract? a Explanation Reasons to have a law of contract b Explain the close procurement project process - Explanation (causes,
what is hacking
Question: a) You are using Active Directory Users under Windows Server 2003 and Computers to configure user objects in your domain, and you are able to change the address and
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