![]() ![]() Substitution Cypher","2.Playfair Cypher","3. If(message.isalpha() and message._len_()!=0): Message=input("Enter the message you want encrypted") This symmetrical digramatic cipher uses a 5x5 matrix and the English alphabet to code messages with a key (often the cipher text is seen as pairs of letters). Return ''.join(keyMap.get(c.lower(), c) for c in cipher) The Playfair Cipher This is an improved version of basic substitution ciphers. ![]() ![]() Return ''.join(keyMap.get(c.lower(), c) for c in plaintext) #All these functions are substituion based The Playfair algorithm is based on the use of a 5X5 matrix of letters built using a keyword. #function to make encryption decryption key for substitution encryptionĪlphabet = 'abcdefghijklmnopqrstuvwxyz.,! ' Playfair cipher is a multi- alphabet letter encryption cipher, which deals with letters in plaintext as single units and renders these units into Ciphertext letters. I need help implementing the rest of the algorithms taking message as a parameter in each of the functions while printing out the orighanl message, cipher and deciphered cipher, Thank You. It takes user input, encrypts it and prints out the original message, the cipher and the deciphered message. I have managed to implement substitution cypher with success. Am working on a project that should ask user for string input and then ask user to choose encryption algorithm which may include substitution cipher,play fair cipher, transposition cipher, Product cipher and RSA cipher. ![]()
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