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16: Cryptography

Last updated

Jan 2, 2021
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- 15.6: Exercises
- 16.1: Cryptography

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Thumbnail: Alphabet shift ciphers are believed to have been used by Julius Caesar over 2,000 years ago. Caesar cipher with a shift of 3. Plaintext is at the top, Ciphertext is at the bottom. (Public Domain; Matt_Crypto via Wikipedia).

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