Basics of Cryptology – Part 2 (Cryptanalysis – Terminology & Classical Ciphers)

Cryptography | Classical Cipher | Substitution Cipher Techniques

Classification of Codes: Definitions, Weighted, Non-Weighted, Reflecting, Sequential, & Alphanumeric

The Science of Codes: An Intro to Cryptography

classification of codes | different types of codes | | with examples

The History of Cryptography: Tracing the evolution of codes and ciphers

Secrets of Historical Cryptography: From Caesar Cipher to Queen Mary's Code!