Cryptanalysis for Affine Cipher:

you have to implement the followinhg algoruthm usi9mg sagmaths tool affine cipher , hill cipher, shift cipher, substitution cipher, transposition cipher, vigenere cipher. this should be followed by cryptanalysis of all of the above classical cipher algorithm

Pour assurer l'intégrité d'un fichier F, on peutQuestion 46Veuillez choisir une réponse.utiliser un chiffrement AES-CBCutiliser le protocole Diffie-Hellmanutiliser une fonction de hachage cryptographique

Write a program to perform encryption and decryption using wrapper class Encryption phase with shift n = En (x) = (x+n)mod 26Decryption phase with shift n = Dn (x) = (x-n)mod 26ExamplesText : ABCDEFGHIJKLMNOPQRSTUVWXYZShift : 23Cipher : XYZABCDEFGHIJKLMNOPQRSTUVWinput-output format Text : ATTACKATONCE(input)Shift : 4(input)Cipher : EXXEGOEXSRGI(output)ATTACKATONCE

Which of the following is/are not perfectly secure encryption scheme(s):  Playfair Cipher Vernam Cipher Affine Cipher Vigenère Cipher

List down various modes of operations of block cipher and explain anythree of them briefly