Network Security - Introduction

1.     What is the OSI security architecture?

The OSI Security Architecture is a framework that provides a systematic way of defining the requirements for security and characterizing the approaches to satisfying those requirements. The document defines security attacks, mechanisms, and services, and the relationships among these categories.

2.     What is the difference between passive and active security threats?

Passive attacks have to do with eavesdropping on, or monitoring, transmissions. Electronic mail, file transfers, and client/server exchanges are examples of transmissions that can be monitored. Active attacks include the modification of transmitted data and attempts to gain unauthorized access to computer systems.

Problems

1.     Draw a matrix that shows the relationship between Security Services and Security Attacks.

2.     Draw a matrix that shows the relationship between Security Mechanisms and Attacks.

3.     Draw a matrix that shows the relationship between Security Services and Security Mechanisms.