AES & Square Attack on 4-Round Implementation in TypeScript

This repository contains an implementation of the Advanced Encryption Standard (AES) written in TypeScript.
It includes both the core AES components (S-box, key expansion, encryption/decryption) and Square Attack.

Project Structure

• index.ts – Entry point and high-level AES logic.
• Sbox.ts – AES S-box and inverse S-box tables.
• helpers.ts – Utility functions (byte/word transformations, etc.).
• client.ts – Example usage / test client.
• attackRelated.ts – Code related to cryptanalysis (e.g., square attack).

Getting Started

1. Clone the repository

   git clone https://github.com/I-Kazanci/AES-4-Round-Attack.git
   cd AES-4-Round-Attack

2. Install dependencies

   npm install

3. Run the project

   npx ts-node index.ts

Features

• AES core implementation in TypeScript.
• S-box & inverse S-box lookup tables.
• Helper functions for Galois Field arithmetic.
• Example client code for testing.
• Fully functional Square Attack on Round 4-AES.

License

MIT License – feel free to use, modify, and share.