Object Details author Dooley, John 1952- Contents Introduction: A revolutionary cipher -- Cryptology before 1500: a bit of magic -- The black chambers: 1500-1776 -- Crypto goes to war: the American ...

The algorithms used in this research are Vigenere Cipher and Even-Rodeh Code. This system is built using the C# programming language. The results show that file security using Vigenere Cipher ...

A python code that performs a Vigenere cipher. Do both encryption of a plain text or decryption for a cipher text. in Vigenere cipher the key used in encryption or decryption is a single word and the ...

This paper proposes a cipher algorithm of order /spl theta/ using the Vigenere principle. A cipher method with numerical data is used. The cipher depends on the key that is composed by the triple (K, ...