simple-e2ee-cmd-chat

The purpose of the project is to develop a program which allows 2 users to communicate with one another in a secure manner through the use of End-to-End Encrypted (E2EE) Communications.

Features

• Base Chat Sender/Listener
• RSA Key Generation & Exchange
• Digital Signing & Verification
• Message Encryption & Decryption
• Message Padding

Program Flow

Program Architecture

Limitations

• Message length due to the nature of RSA & socket being binded to 4096 bits
• No Error Handling

Requirements

• Python 3.6

• pycryptodome

pip install pycryptodome

• Python Socket

pip install socket

Usage - Server

1. Run the program server.py via cmd

python server.py

2. Key in the port number to start the session
3. Now wait for connections

Usage - Client

1. Run the program client.py via cmd

python client.py

2. Key in Server's IP address and port number
3. Viola!