Crash Course Computer Science #33: Cryptography

This episode discusses how to keep information secret using cryptography. From as early as Julius Caesar's Caesar cipher to Mary, Queen of Scots, encrypted messages to kill Queen Elizabeth in 1587; there has long been a need to encrypt and decrypt private correspondence. This proved especially critical during World War II as Allan Turing and his team at Bletchley Park attempted to decrypt messages from Nazi Enigma machines, and this need has only grown as more and more information sensitive tasks are completed on our computers. So today, we're going to walk you through some common encryption techniques such as the Advanced Encryption Standard (AES), Diffie-Hellman Key Exchange, and RSA which are employed to keep your information safe, private, and secure.