Cryptography Part 1 - History
Channel: Tom Olzak
Date: 2021-07-31

A vital security layer to protect confidentiality and integrity is cryptography. It includes several approaches to hiding data or ensuring its authenticity.  In this first lesson of the cryptography series, I explore the history of cryptography and how it has changed over the centuries.

Table of Contents:
00:00 - Intro
00:33 - Definitions
01:31 - Origins of Cryptography
02:08 - Scytale Cipher
02:39 - Caesar Cipher
03:16 - Problems with Simple Substitution
04:32 - Vigenere Cipher
07:13 - Enigma
07:53 - Codebooks and One-time Pads
08:15 - Mary Queen of Scots Code
08:52 - One-time Pads

CISSP, rotor ciphers, substitution ciphers, monoalphabetic, polyalphabetic, pattern matching