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Cisy 433:Cryptography And Network Security Question Paper

Cisy 433:Cryptography And Network Security 

Course:Computer Science

Institution: Kenya Methodist University question papers

Exam Year:2015



KENYA METHODIST UNIVERSITY

END OF 1''st ''TRIMESTER 2015 (PT) EXAMINATION
FACULTY : COMPUTING & INFORMATICS
DEPARTMENT : COMPUTER SCIENCE
UNIT CODE : CISY 433/BBIT 447
UNIT TITLE : CRYPTOGRAPHY AND NETWORK SECURITY
TIME : 2 HOURS




SECTION A: (30 MARKS)

Answer all questions in this section

Question One

Define the following terms.

(6 marks)

MIME
SHA
Data Integrity

Explain application of steganography.

(2 marks)

What are the message authentication requirements?

(4 marks)

Describe Whirlpool logic as applied in cryptography.

(4 marks)

Describe the VeriSign certificates in relation to Certification Authority (CA)

(4 marks)

Describe the steps of creating an RSA public/private key pair of PKC

(6 marks)

Describe the concept of penetration testing and its phases.

(4 marks)

SECTION B: (40 marks)

Answer any two questions

Question Two

Explain how DES works using equations and a diagram.

(10 marks)

How is PKC integrated with RFID?

(5 marks)

Explain the process of deploying security management systems.

(5 marks)

Question Three

Show how message Authentication code is used as an authenticator to achieve both Authentication and confidentiality.

(8 marks)

Describe three contents of certificates and explain the functions of certificates.

(6 marks)

Explain the process of creating SET dual signature.

(8 marks)

Question Four

Define the content filtering and technologies used for content filtering.

(6 marks)

Explain how Deffic Hellman is used as a PKC so that KA=KB.

(8 marks)

What are three main designs of Firewalls?

(6 marks)




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