Cryptography: The Science of Making and Breaking Codes

The video explores cryptography, starting with simple ciphers like the Caesar cipher and moving to more complex ones like the Vigenere cipher. It explains how frequency analysis can crack these codes and introduces the concept of one-time pad encryption as a truly secure method. The historical context of cryptography is discussed, including the Enigma machine used in WWII. The video concludes with modern encryption challenges in digital computing.

What is a cryptogram and how is it created?

Explain the difference between a cipher and a key in cryptography.

What is a Caesar cipher and how does it work?

Describe the process of frequency analysis in breaking ciphers.

What is a polyalphabetic cipher and how does it differ from a monoalphabetic cipher?

What is a one-time pad encryption and why is it considered unbreakable?

How did Alan Turing contribute to breaking the Enigma code during World War II?