143. AQA A Level 7517 SLR21 - Master Symmetric & Asymmetric Encryption 🔐

AQA Specification Reference
A Level 4.9.3.2

In this video we take a look at the two main forms of encryption you need to know about for the exam: Symmetric and Asymmetric.

Key questions:

- How does encryption work?
- What is the difference between symmetric and asymmetric encryption?

00:00 Symmetric and asymmetric encryption
00:06 Intro
00:11 What is encryption?
00:21 Simple encryption using Caesar cipher
00:54 Symmetric encryption
01:43 Asymmetric encryption
05:33 Key questions
05:45 Going beyond the specification
05:52 How easy is it to crack an encryption key?
06:56 Outro

Why do we disable comments? We want to ensure these videos are always appropriate to use in the classroom. However, we value your feedback, and are happy to consider amendments due to inaccuracies. Please get in touch with us directly at: admin@craigndave.co.uk

For all our support resources please visit:
http://craigndave.org/
http://student.craigndave.org/