Cryptography & Network Security||Basic Cipher Techniques|| DSE-2@DU

In This lecture, I am discussing about Symmetric cipher model, Cryptanalysis and brute-force attack, Substitution techniques, Caesar cipher, Monoalphabetic ciphers, Hill cipher, Polyalphabetic ciphers and vigenere cipher. L1:https://drive.google.com/file/d/1VyLqBcoohb44QSVbxtyfx9Mm8lb7hYu9/view https://youtu.be/2cRzwsrSR-Y