(Solved) : 1 Project Use Vigenere Cipher Encrypt Passwords 2 Vigenere Cipher Simple Letter Substituti Q26447468 . . . .

1)This project will use The VigenereCipher to encrypt passwords.

2)Vigenere Cipher

a)Simple letter substitution ciphersare ones in which one letter is substituted for another. Althoughtheir output looks impossible to read, they are easy to breakbecause the relative frequencies of English letters are known.

b)The Vigenere cipher improves uponthis. They require a key word and the plain text to beencrypted.

c)Example:

Suppose you have a key word:house

We would encrypt a message asfollows:

The first letter would be encryptedusing these correspondences:

original letter:    a b c d e f g h i j k l m n o p