OOPProject

This encryption and decryption program uses the txt file called 4grams to get the plain text after user been typed the text and ask for key as well. The class Railfence has defined methods to encrypt and decrypt the text typed by user .
Result class set and get the score and key . The class File parser read the file called users.txt and store it in map and return the map. Class Quadgram declares the Size of the gram which is static = 4 ; Cypher breaker class break the text . Runner class take the user input and gives out the text , Score , Key.