Cryptography
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1
Intro to Cryptography
by Khan Academy 196,018 views
Learn more: http://www.khanacademy.org/video?v=Kf9KjCKmDcU
The basic idea behind why we need cryptography -
2
The Fundamental Theorem of Arithmetic
by Khan Academy 132,449 views
Learn more: http://www.khanacademy.org/video?v=8CluknrLeys
The Fundamental Theorem of Arithmetic -
3
Probability Space
by Khan Academy 116,230 views
Learn more: http://www.khanacademy.org/video?v=1dPMsJ7I6BY
Basics of what a probability space is -
4
Frequency Stability
by Khan Academy 90,263 views
Learn more: http://www.khanacademy.org/video?v=vVXbgbMp0oY
Can humans generate truly random sequences -
5
Caesar Cipher
by Khan Academy 96,819 views
Learn more: http://www.khanacademy.org/video?v=sMOZf4GN3oc
The Caesar Cipher -
6
Polyalphabetic Cipher
by Khan Academy 71,957 views
Learn more: http://www.khanacademy.org/video?v=BgFJD7oCmDE
Creating a lighter fingerprint with a more intricate word-based cipher -
7
One-time pad
by Khan Academy 71,090 views
Learn more: http://www.khanacademy.org/video?v=FlIG3TvQCBQ