This document outlines the course objectives and contents for a Network Security course at the University of Okara. The course will introduce computer and network security concepts over 10 lectures, including topics like cryptography, encryption algorithms, digital signatures, key management, hashing, VPNs, firewalls, and viruses. Students will complete 3 assignments, 3 exercises per lecture, a final project, and case study. The course aims to explain network security in the context of protecting network resources and data, rather than just computers or individual data. It will also cover the history and basic definitions of security, like defining it as protecting systems from harm and preserving the confidentiality, integrity and availability of information.

1. Inam Ul Haq
MS Computer Science (Sweden)
Inam.bth@gmail.com, mr.inam.ulhaq@ieee.org
Discussion forum: questions.computingcage.com
Member of IEEE, ACM, Movement Disorder Society, PDF, BossMedia,
Michealjfox, Association for Information Systems and Internet Society.
Network Security
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2. Table of Contents
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 Course Objectives
 Subject Parts
 What is security?
 History
 Terminologies

3. Subject Objectives
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 Security in the context of Network (not computer
or data)
 Introduce computer and network security
concepts.
 Understand basic cryptography theory
 Algorithms for symmetric and public key
encryption
 Digital Signatures, key management, Hash
functions
 Email Security. Understand Network security
topics including VPNs; Firewalls; Viruses,
Disaster Prevention and Recovery.

4. Subject Parts
 10 Lectures
 3 Assignments
 3 Exercises (at the end of each lecture)
 Final Project
 Case Study
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5. What is security?
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 Protection of physical assets from enemies
(traditional definition)
 Security (Wikipedia): The degree of resistance to, or protection
from, harm.
 Computer Security (William Stalling): The protection to an automated
information system to preserve the integrity, availability, and
confidentiality of information system resources. [also called Cyber
Security or IT Security] OR
 A study to prevent unauthorized access to IS related to data,
hardware or software. (I prefer it).
 Software Security: A study to prevent bugs in code.
 Network Security: A study to prevent unauthorized access to data
of a network resources. (I prefer it).
Note: if not clear? think about medieval castle.
 What is protection? What is Information Security?

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Where are security breaches

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