Quantum Cryptography Explained: From Classical Codes to Quantum Security 🔐

0:00 Introduction to cryptography
2:28 Caesar's encryption
5:24 Permutation code
8:44 Vigenere cipher
14:15 One-time pad
21:03 Introduction to quantum cryptography
24:46 Benett-Brassard-84 protocol
42:23 Ekert-91 protocol

In this lecture we discuss quantum cryptography. Quantum cryptography offers a provably secure scheme for creating one-time pads. These pads (steams of random data) may be used to create 100% secure encryption.

This is a lecture in a graduate course "Quantum Computing".

My book "Quantum Computing for High School Students" is available here: https://qubitpublishing.com/ or from Amazon.

Complete playlist for this course:
https://www.youtube.com/playlist?list=PLu6jbin1VpDD87rdSDF4HRfITWF_LwgOx