Caesar cipher

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Caesar cipher

cryptography

Also known as: Caesar shift cipher, shift cipher

Learn about this topic in these articles:

principles of cryptology

In cryptology: Substitution ciphers
…these, the best-known is the Caesar cipher, used by Julius Caesar, in which A is encrypted as D, B as E, and so forth. As many a schoolboy has discovered to his embarrassment, cyclical-shift substitution ciphers are not secure. And as is pointed out in the section Cryptanalysis, neither is…
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substitution cipher

In substitution cipher
…these, the best-known is the Caesar cipher, used by Julius Caesar, in which A is encrypted as D, B as E, and so forth. As many a schoolboy has discovered to his embarrassment, cyclical-shift substitution ciphers are not secure, nor is any other monoalphabetic substitution cipher in which a given…
Read More