The Science of Codes: An Intro to Cryptography

Were you fascinated by The Da Vinci Code? You might be interested in Cryptography! There are lots of different ways to encrypt a message, from early, simple ciphers to the famous Enigma machine. Michael Aranda takes you through a fun and cryptic episode of SciShow, all about codes!
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Sources:

http://www.simonsingh.net/The_Black_C...
http://book.itep.ru/depository/crypto...
http://www.cs.trincoll.edu/~crypto/hi...
http://www.sans.org/reading-room/whit...
http://ftp.stmarys-ca.edu/jsauerbe/m1...
http://www.turing.org.uk/scrapbook/ww...
http://enigma.louisedade.co.uk/howitw...
http://www.codesandciphers.org.uk/eni...
http://www.pbs.org/wgbh/nova/military...
http://www.cs.miami.edu/~burt/learnin...