Shift Cipher (Introductory Cryptography)

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Published on ● Video Link: https://www.youtube.com/watch?v=7pFTTz_R0ZU


Duration: 39:38
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In today's lecture we learn our first cryptosystem/cipher, the shift cipher! We apply some of the main terms we seen last time, learn how to carry out the shift cipher on plaintext and back from ciphertext, and more! Next time we will see more examples such as in the setting of the Caesar Cipher, and its cryptanalysis.

Time Stamps:
0:00 Recap
0:25 Shift Cipher, definition and the process
13:11 Example of encrypting message
24:50 Example of decrypting a message, some notes about modular arithmetic
39:17 Closing

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