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(a) Mention the five main security services.
(b) What is a passive attack? Give an example of passive attack?
(c) What four types of active attacks and mention their respective attacks to which security services?
(d) Distinguish between authentication and non-repudiation.
(e) Which type of algorithms can be used to provide the following security services:
i. Message integrity
ii. Message integrity and authentication
(f) Describe how public key cryptography can be used to provide message confidentiality when Alice wants to communicate with Bob.
Question: a) Explain what the following intermediate systems are and how they work? i. Repeater ii. Bridge b) A service is formally specified by a set of primitives (op
#ON A lan wher r ip datagrams transported?
IP DATAGRAM Various options can be included to IP header, e.g., source route, record route and timestamp. Header with no function has H. LEN field value 5; data starts immedia
Question (a) A CRC is constructed to generate a 4-bit FCS for an 11-bit message. The divisor polynomial is X 4 + X 3 + 1 (i) Encode the data bit sequence 00111011001 using po
Information and Network Security Part 1- Recovery of an encrypted `word' using a forward search attack. Complete and correct summary for part 1. Adequately commented, clea
ROUTING TABLES AND ADDRESS MASKS Additional information is saved in routing table. Destination is kept as network address. Next hop is saved as IP address of router. Address m
How to find an ip address?
(a) Briefly explain the following security goals provided by cryptography: confidentiality, authentication, integrity and non-repudiation. (b) State Kerckhoff's Princip
QUESTION (a) Mention two attitudes of a carer towards an inspector that could lead to negative outcomes (b) Give two performance indicators of Early Childhood Education that
Why is WEP-based authentication pointless?
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