AES Encryption/Decryption Utility

This command-line utility facilitates encrypting and decrypting text using the Advanced Encryption Standard (AES) with support for 128, 192, and 256-bit key lengths.

Quick Start

Prerequisites

• A C++11 or newer compiler (e.g., GCC, Clang, MSVC)

Build

Compile the project with:

g++ -std=c++11 -o protocol protocol.cc

Usage

Run the Program:

./protocol

Follow the prompts to enter your message, key, and key length (128, 192, or 256 bits) to perform encryption or decryption.