LockNote

Welcome to LockNote, the next-generation solution for secure conversations. Built with multiple layers of encryption on the robust Python ecosystem, LockNote ensures that your conversations remain private, protected, and uncompromised.

Whether you're handling sensitive business information or simply chatting with friends, LockNote guarantees the highest levels of security through cutting-edge encryption technology. By prioritizing user privacy and data protection, we bring you a platform that keeps your communications secure from unauthorized access.

Features of LockNote

1. End-to-End Encryption
   All messages are encrypted from the sender to the receiver, ensuring that no one in between can access your conversations.

2. User-Friendly Interface
   The simple, intuitive design makes it easy for users to navigate and communicate.

3. Multi-Platform Support
   Whether you are using a desktop or a mobile device, LockNote is always accessible.

4. Robust Backend
   Powered by Python, LockNote ensures fast and reliable communication.

5. Open Source
   Access our codebase, contribute, and help improve the system.

6. Group Chats
   Have encrypted group conversations with multiple participants, keeping all messages secure.

7. Adaptive Encryption Modes
   Switch between encrypted and unencrypted chat modes based on your specific needs.

8. Direct Messaging (DM)
   Message individual users privately with end-to-end encryption.

Requirements

To use LockNote, ensure the following dependencies are installed:

• Python 3.x
• cryptography library
• colorama library

To install the required packages, run:

pip install cryptography colorama

Usage

Unencrypted Mode

Run the server and client applications in unencrypted mode as follows:

Server:

python3 server.py --help

Example usage:

python3 server.py --host 0.0.0.0 --port 12345 --loglevel INFO --logfile server.log

Client:

python3 client.py --help

Example usage:

python3 client.py --host 127.0.0.1 --port 12345

Encrypted Mode

Use the encrypted mode of LockNote for added security:

Server (Encrypted):

python3 serverE.py --help

Example usage:

python3 serverE.py --host 0.0.0.0 --port 12345 --key mysecretpassword --loglevel INFO --logfile server.log

Client (Encrypted):

python3 clientE.py --help

Example usage:

python3 clientE.py --host 127.0.0.1 --port 12345 --key mysecretpassword

In-Program Help Menu

Once connected, users can access the help menu for a list of commands:

Help Menu:

• /help → Display the help menu.
• /exit → Exit the program.
• /clear → Clear the chat screen.
• /userlist → View the list of connected users.
• /dm [user] [message] → Send a direct message to a user.
• /changeuser [new_username] → Change your username.

Command Line Options Summary

Command Option	Description
--help	Show help message and exit.
--host	IP address to bind the server/client.
--port	Port number for the server/client.
--key	Secret key for encryption (for encrypted mode).
--loglevel	Set logging level (DEBUG, INFO, WARNING, ERROR).
--logfile	Specify the log file for logging output.