Cryptography Part 1 - History

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