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Vigenère Cipher - Small Basic Featured Program

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From Wikipedia: "The Vigenère cipher is a method of encrypting alphabetic text by using a series of different Caesar ciphers based on the letters of a keyword... The first well documented description of a polyalphabetic cipher was formulated by Leon Battista Alberti around 1467 and used a metal cipher disc to switch between cipher alphabets."

Wikipedia speaks of the Caesar Cipher: "In cryptography, a Caesar cipher, also known as Caesar's cipher, the shift cipher, Caesar's code or Caesar shift, is one of the simplest and most widely known encryption techniques. It is a type of substitution cipher in which each letter in the plaintext is replaced by a letter some fixed number of positions down the alphabet. For example, with a shift of 3, A would be replaced by D, B would become E, and so on. The method is named after Julius Caesar, who used it in his private correspondence."

Import Code: WCD295

You can grab the code here (but it won't run online):

https://smallbasic.com/smallbasic.com/program/?WCD295

This program comes from Amir CPS.

  

Have you used it? Encoded any secret messages? Leave a comment?

Enjoy!

   - Ninja Ed

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