📌 Overview This lab simulates a scenario where all files in your Linux home directory have been encrypted. Your mission: locate hidden files, break a Caesar cipher, and decrypt AES-256-CBC–encrypted ...

The encryption scheme for this assignment is a simple substitution cipher. The scheme works by replacing each character in the plaintext with the corresponding character in a “ciphertext alphabet”, ...

Introduction If you need to send a secret message to a friend, how could you prevent other people from reading it? One way is to encrypt the message—that is, use a secret code that only you and your ...

In cryptography, a Caesar Cipher is one of the simplest and most widely known encryption techniques. It is a type of substitution cipher in which each letter in the plaintext is replaced by a letter ...