PMG Secure - Password Manager & Generator

A robust password management solution built with Python, focusing on security, usability, and modern cryptographic standards.

Features

Password Generation

• Customizable length (8-32 characters)
• Three complexity tiers:
  • Simple: Dictionary-based, memorable combinations
  • Moderate: Mixed character sets with guaranteed variety
  • Complex: Full ASCII character set with maximum entropy

Security Architecture

• Multi-layer encryption:
  • PBKDF2 key derivation (100,000 iterations)
  • Fernet symmetric encryption (AES-128 in CBC mode)
  • SHA-256 password hashing with unique salts

User Interface

• Modern dark-mode design with CustomTkinter
• Organized tabs for different functions:
  1. Generate Password: Create and evaluate new passwords
  2. Store Login: Save website credentials securely
  3. Search Login: Find credentials by website name
  4. Browse Login: View and manage all stored credentials
  5. Check Password: Analyze password strength in real-time

Technical Details

Storage Structure

~/.pmg_secure/ 
  ├── pmg_secure.db  # Encrypted SQLite database 
  └── pmg_secure.key # Key storage file

Installation

1. Clone the repository:

   git clone https://github.com/IominimoI/CS50FinalProject.git
   cd CS50FinalProject

2. Set up a virtual environment:

   python -m venv venv
   source venv/bin/activate  # On Windows: venv\Scripts\activate

3. Install dependencies:

   pip install -r requirements.txt

4. Make the app callable from terminal:

   # Create a simple shell script in a directory that is in your PATH
   echo '#!/bin/bash
   cd /path/to/CS50FinalProject
   source venv/bin/activate
   python pmg_gui.py' > ~/bin/pmgsecure
   
   # Make it executable
   chmod +x ~/bin/pmgsecure

   Note: If ~/bin isn't in your PATH, add it or use another directory that is.

   Alternatively, add an alias to your .bashrc or .zshrc:

   echo 'alias pmgsecure="cd /path/to/CS50FinalProject && source venv/bin/activate && python pmg_gui.py"' >> ~/.bashrc
   source ~/.bashrc

5. Run the application:

   pmgsecure

   Use the --daemon flag to run the app in the background.

Usage

• First Use: Register a new account with a strong master password
• Password Management: Generate, store, and retrieve passwords through the intuitive interface
• Security: All sensitive data is encrypted before storage, with multiple layers of protection

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

Developed as a final project for Harvard CS50x. Special thanks to the CS50 teaching team for their exceptional educational resources.