This program can encrypt or decrypt text with a Vigenère Cipher. You can read more about the Vigenère Cipher on it's Wikipedia Page. Welcome to Vigenere Cipher Program! Type 'e' for encryption. Type ...

Babbage et Kasiski comprirent que des répétitions de cette sorte leur offraient la prise dont ils avaient besoin pour attaquer Vigenère. Ces séquences redondantes peuvent indiquer deux ...

Abstract: In this chapter, the authors survey some historical ciphers which have been used since antiquity. They discuss the Vigenere cipher and show how it can be broken by finding the length of the ...

First, we attempt to encrypt a plaintext message using the Vigenère Algorithm and a fixed-length encryption key. Afterward, we experiment with the decryption of the produced cipher using Kasiski's ...