![]() In the Caesar cipher, each letter in the plaintext is simply encrypted to a letter in the encoded text according to a predefined offset. A common, and easy to understand monoalphabetic cipher is the Caesar cipher. ![]() ![]() These ciphers are simple forms of encryption which for a given key, match each letter of the alphabet (or number) in the source text (commonly referred to as the plaintext) to one other character in the encrypted text. Prior the creation of the Vigenère cipher, most encrypted messages were encrypted using different forms of monoalphabetic ciphers. What is a Vigenère cipher? History of the cipher Implementing the Vigenère cipher in python.
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