Diffie-Hellman Key Exchange and Forward Secrecy

Diffie-Hellman is the most secure way of doing a Key Exchange. Specifically because it provides a very important Cryptographic concept known as Forward Secrecy. In this video we show you Diffie-Hellman twice: once with simplified math, and later with the real math. Then we define Forward Secrecy, and explain how Diffie-Hellman provides it.

// CHAPTERS

00:00 - Intro / Key Exchange review
00:36 - Plan for this video
01:19 - Simplified Diffie-Hellman Key Exchange
03:29 - Diffie-Hellman Assurances
04:13 - Forward Secrecy
06:59 - Modular Exponentiation
08:47 - Real Diffie-Hellman Math
12:00 - Outro


// FULL SERIES - Cryptography Essentials //

This video is part of a 16-part series covering the essentials of modern Cryptography. Explained simply, and technically accurate.

The full series is available here:
📋 https://www.youtube.com/playlist?list=PLIFyRwBY_4bQvq5PuJASilkHSVGLZtceZ
( or use the shortcut pracnet.net/ce )

00  Series Introduction
01  Hashing
02  Keys / Secret Keys
03  Symmetric Cryptography
04  Encryption
05  MAC / HMAC
06  Pseudo Random Function
07  Asymmetric Cryptography
08  Asymmetric Encryption (RSA)
09  Signatures
10  RSA Signatures
11  DSA Signatures
12  Key Exchanges
13  RSA Key Exchanges
14  DH Key Exchanges
15  Elliptic Curve Cryptography

// ADDITIONAL RESOURCES //

Diffie-Hellman Key Exchange -- full lesson:
https://www.youtube.com/watch?v=KXq065YrpiU&list=PLIFyRwBY_4bTwRX__Zn4-letrtpSj1mzY

Practical TLS - free lessons:
https://www.youtube.com/playlist?list=PLIFyRwBY_4bTwRX__Zn4-letrtpSj1mzY

Practical TLS - full course:
https://pracnet.net/tls


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