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Cryptopraphy And Network Question Paper

Cryptopraphy And Network

Course:Computer Science

Institution: Kenya Methodist University question papers

Exam Year:2013

KENYA METHODIST UNIVERSITY

END OF 3''RD ''TRIMESTER 2013 (FT) EXAMINATION
FACULTY : COMPUTING & INFORMATICS
DEPARTMENT : COMPUTER SCIENCE AND BUSINESS INFORMATION
UNIT CODE : CISY 433/BBIT 447
UNIT TITLE : CRYPTOPRAPHY AND NETWORK
TIME : 2 HOURS

INSTRUSTIONS: Answer all question in section A and two in section B.

Section A: Answer all questions.

Question One

Define the following terms.

(6mks)

Origin non-repudiation
Digital signature
Authentication

List two instant messaging security threats.

(2mks)

Describe three cryptographic scheme SKC, PKC, and Hash functions.

(6mks)

Describe S/MIME certificate processing.

(4mks)

Describe whilepool logic.

(4mks)

Describe the penetration testing as applied in system securing. (4mks)
With examples show that KA=KB, using diffie-hellman Algorithm. (4mks)

Section B: Answer two questions in this section

Question Two

Describe four main RFID security challenges and basic RFID protection mechanism.

(5mks)

Discuss five evidence roles of network forensic.

(5mks)

Describe SET requirements, features and with the help of a diagram show all the set system participants.

(5mks)

Question Three

Describe the phases of penetration testing and various types of penetration testing.

(6mks)

Describe clearly the basic steps to create a RSA public private key. (6mks)

Show the formula for DES cryptographic algorithm and list the 16 round of permutation with a diagram.

(8mks)

Question Four

With one diagram show the message authenticaition code for Authentication and confidentiality and digital signature.

(5mks)

Briefly describe Kerbero Authentication and certificates.

(10mks)

With a diagram, describe two designs of firewalls.

(5mks)

Cryptopraphy And Network Question Paper

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