100. Mastering the Vernam Cipher: A One-Time Pad Encryption 🔐

AQA Specification Reference
AS Level 3.5.6.8
A Level 4.5.6.10

This video looks the Vernam cipher, which is as example of a one-time pad cipher. We explain why one-time pad ciphers like this as considered cyphers with perfect security.

Key questions:

- What is the Vernam cipher and how does it work?
- What do we mean by the phrase "one-time pad"?

00:00 Encryption - Vernam cipher
00:09 Intro
00:14 A note about this video
00:25 Vernam cipher
03:07 Key questions
03:18 Outro

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