# Module Overview

This module focuses on digital signatures and public key infrastructure (PKI) including digital certificates and certificates authorities.

## Module Objectives

By the end of this module you should be able to:

- explain how private and public keys are used for creating and verifying digital signatures.
- explain how hash functions are used in digital signatures.
- explain the role of digital certificates and certificate authorities in secure communications.
- illustrate how digital signatures work using freely available software

## Task List

- Study the slides on digital signatures presentation posted in the module.
- Complete Quiz 5.
- Complete the lab posted in module.