Skip to content
Skip to main content

About this free course

Download this course

Share this free course

Introduction to cyber security: stay safe online
Introduction to cyber security: stay safe online

Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available.

Week 5: Cryptography


Download this video clip.Video player: ou_futurelearn_cyber_security_vid_1016.mp4
Copy this transcript to the clipboard
Print this transcript
Show transcript|Hide transcript
Interactive feature not available in single page view (see it in standard view).

Cory explains the focus for this week: cryptography.

Cryptography is a specialised area of mathematics concerned with protecting information so that it can be transmitted and received securely even when there is a risk that a hostile third party might intercept or modify the data. You will recognise it as it’s been mentioned before as a technique that can help with protecting information.

We are now going to look at this important aspect of cyber security in a little more detail.