What is Public and Private Key Encryption?

Go to http://StudyCoding.org to subscribe to the full list of courses and get source code for projects. How does public and private key encryption work? How is asynchronous encryption different than symmetric encryption? Full course playlist for secure web development https://www.youtube.com/watch?v=6xedgVwYuAg&list=PLhPyEFL5u-i0XXGLJawaTNLiXxmSp24TR Full course playlist for Information Security https://www.youtube.com/watch?v=V11uOQaFotQ&list=PLhPyEFL5u-i10Bek21aMh4FdaOPR2SeEJ Contents 0:00 Types of cryptography - Caesar DES AES asymmetric and hashing 0:45 Symmetric vs asymmetric encryption 1:15 public vs private keys 1:30 Whitfield Diffie New Directions in Cryptography 1:55 PGP Phil Zimmerman 1991 US Customs 2:50 Symmetric Encryption Standard Password Problems 4:10 Asymmetric encryption advantages 4:50 GPG gen-key 5:10 Share public key in GPG 5:35 import public key into gpg encrypt for user