TP BLOCKCHAIN TASK #05

LOCKING/UNLOCKING A CAR EMULATION

What is it? 👀

This program emulates (un-)locking car's doors with car key.
Secure connecton is established over an insecure channel using ECDSA.
Implemented elliptic curve: Curve25519 (curve propeties here).

Communication protocol 📜

1. HANDSHAKE: car key initiates connection by sending command (e.g. "Unlock doors") to the car;
2. CHALLENGE: to make sure that command was sent by the trusted key, car sends signed (using car's private key) nonce to the key;
3. RESPONSE: car key verifies car's signature and sends signed (using key's private key) nonce back to the car;
4. VALIDATE: car verifies key's signature and executes command.

Usage 🌍

1. ⭐ Star this repo.
2. 📂 Clone this repo (e.g. via git clone).

git clone https://github.com/sokolcom/tp-blockchain-task05.git

3. 🚀 Run python3 src/main.py in the repo directory to run the program.

python3 src/main.py

4 . 🔍 Example output: