Understanding Modes of Operation in Cryptography 🔐 | Computerphile

You don't just 'run a cipher' - you need a mode of operation. Dr Mike Pound explains some relative to the Feistel cipher. **This video was filmed before any social distancing guidelines came into effect** EXTRA BITS: https://youtu.be/0abs6qfuLpg Feistel Cipher Video: https://www.youtube.com/watch?v=FGhj3CGxl8I Mike's code: github.com/mikepound/feistel 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