Page 291 - DCAP103_Principle of operating system

Principles of Operating Systems Anil Sharma, Lovely Professional University

Notes Unit 9: System Security

CONTENTS

Objectives

Introduction
9.1 Overview
9.1.1 Protection
9.1.2 Access Control Lists

9.1.3 Capabilities

9.1.4 Mandatory Access Control
9.1.5 Cryptographic Access Control
9.2 Security Problem

9.3 Program Threats

9.3.1 Types of Threats
9.3.2 System Threats
9.3.3 Network Threats

9.3.4 Types of Network Threats

9.4 Cryptography
9.4.1 The Purpose of Cryptography
9.4.2 Types of Cryptographic Algorithms

9.5 User Authentication

9.5.1 Implementation of Defenses
9.6 Firewall
9.6.1 First Generation: Packet Filters

9.6.2 Second Generation: Application Layer

9.6.3 Third Generation: “Stateful” Filters
9.6.4 Subsequent Developments
9.6.5 Types

9.7 Summary

9.8 Keywords
9.9 Review Questions
9.10 Further Readings

284 LOVELY PROFESSIONAL UNIVERSITY