Computerphile | Feistel Cipher - Computerphile @Computerphile | Uploaded 4 years ago | Updated 4 hours ago
One of the most elegant solutions for cryptography. Dr Mike Pound explains one of his most favourite ciphers.

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This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com