Understanding the Math Behind Diffie-Hellman Key Exchange π
Join Computerphile as they break down the mathematical principles of Diffie-Hellman, correcting common misconceptions and simplifying complex concepts for better understanding.

Computerphile
545.8K views β’ Dec 20, 2017

About this video
Correction : as oodles of commenters have pointed out, the clock face should go from 0 to n-1. Also, worth reminding people that Mike has simplified the notation in this video (as he mentions).
Mike explains the mathematics behind one of the most important pieces of computer security. (Simplified version with colour mixing analogy linked below)
Secret key Exchange (Colour Mixing) Video: https://youtu.be/NmM9HA2MQGI
https://www.facebook.com/computerphile
https://twitter.com/computer_phile
This video was filmed and edited by Sean Riley.
Computer Science at the University of Nottingham: https://bit.ly/nottscomputer
Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Mike explains the mathematics behind one of the most important pieces of computer security. (Simplified version with colour mixing analogy linked below)
Secret key Exchange (Colour Mixing) Video: https://youtu.be/NmM9HA2MQGI
https://www.facebook.com/computerphile
https://twitter.com/computer_phile
This video was filmed and edited by Sean Riley.
Computer Science at the University of Nottingham: https://bit.ly/nottscomputer
Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
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Video Information
Views
545.8K
Likes
18.8K
Duration
7:05
Published
Dec 20, 2017
User Reviews
4.8
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