Encryption: Caesar Cipher

Encryption is at the heart of every private and secure exchange. In this lesson Professor Cerf takes us back into the early days of cryptography and how a simple encryption method dating back to the days of Julius Caesar paved the road to modern day security. And… a puzzle that baffled cryptanalysts for centuries and how its solution enabled what is known as modern day public-key cryptography.(Note, if you are not interested in learning about the building blocks of security, you can skip straight to Part 02 and focus on understanding how Blockchain works and how it is implemented)