Cryptography basics: How does encryption work? | Free Cyber Work Applied series

Learn cryptography basics — from Caesar and Vigenere ciphers to cryptography algorithms and encrypting data using public and private keys — in this Cyber Work Applied video from Infosec Skills author Mike Meyers.

0:00 - The basics of cryptography
0:13 - What is cryptography?
0:40 - What is obfuscation, diffusion and confusion?
2:10 - How a Caesar cipher works
4:00 - Encrypting using a Caesar cipher
5:34 - How a Vigenere cipher works
6:20 - Encrypting using a Vigenere cipher and key
8:53 - Understanding algorithms and keys
9:53 - How to encrypt binary data
11:06 - Exclusive OR (XOR) encryption example
14:14 - What is Kirchhoff's principle?

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