Uncovering Bletchley's Hidden Code: The Lorenz Cipher 🕵️‍♂️

Hitler's High Command didn't use Enigma, they used a faster system called Lorenz, but when Allied forces first encountered it, they had no idea what it was and code-named it 'Tunny' (Tuna). Professor Brailsford explains why this relates to the early days of Computer Science

Next Video in this series: https://youtu.be/yxx3Bkmv3ck

The Professor's Notes:
Undulator Sheet: http://bit.ly/computerphileundulator
Teleprinter Code: http://bit.ly/computerphile5holetape

Colossus & Bletchley Park: https://youtu.be/9HH-asvLAj4
Enigma Playlist: https://www.youtube.com/playlist?list...
5 Hole Paper Tape: https://youtu.be/JafQYA7vV6s
XOR and the Half Adder: https://youtu.be/VPw9vPN-3ac
JPEG DCT: https://youtu.be/Q2aEzeMDHMA
Computer That Changed Everything: https://youtu.be/6LYRgrqJgDc
Inside the Computer (EDSAC): https://youtu.be/Yc945sNB0uA

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This video was filmed and edited by Sean Riley.

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

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