simple questions of computer security

| November 17, 2015

CS375–Computer Security

Assignment 1

FIRSTSEMESTER 2015-16 (151)



Assigned Date: 14thOct 2015

Due Date: 8thOct 2015

Max. Marks 05





Marks Distribution
Criteria Marks
Originality of work 1
Timely submission 0.25
Use of correct template 0.25
Correct answers 3.5





Understand motives behind malware.

Know attack mechanism of different viruses.

Understand symmetric cipher Data Encryption Standard.


Learning Outcome(s)

Good grasp on the topic under study.


Academic Integrity

Plagiarism (or copying) will be penalized.


Method of Delivery

Hard-copy submission



Question 1

  1. Who is Kevin Matnick?
  2. Why is he famous? Give a brief account on his biography.
  3. Give a brief account on TCP sequence number prediction attack that he crafted?
  4. Nowadays, how is he contributing to the society?
  5. Which books does he author?


Question 2

Write a note on each of the following viruses:

  1. Storm
  2. Sasser
  3. I Love You
  4. Conficker
  5. Elk Cloner
  6. Brain Computer Virus


Question 3

Write a comprehensive note on Data Encryption Standard (DES). And explain its following modes of operations.

  1. Electronic Code Block
  2. Cipher Block Chaining
  3. Cipher Feedback
  4. Output Feedback
  5. Counter Mode

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