🔐 Password Manager (CLI)
A simple and secure command-line password manager built with Python. All stored passwords are encrypted using Fernet (AES-128) from the cryptography library.
🚀 Features
Secure password storage (Fernet encryption)
Master password protection
Add / View / Update / Delete accounts
Encrypted JSON database
Clean, modular Python structure
Safe error handling for wrong master password (InvalidToken)
📁 Project Structure
project/ ├── cli.py ├── storage.py ├── crypto.py ├── database.py ├── main.py ├── password.db # Encrypted database ├── requirements.txt └── README.md
📦 Installation
Clone the repository:
git clone https://github.com/USERNAME/REPO-NAME.git cd REPO-NAME
Install required packages:
pip install -r requirements.txt
🔑 Usage
Run the CLI:
python3 -m password_manager add python3 -m password_manager get python3 -m password_manager update python3 -m password_manager delete
🧠 How It Works
You enter a master password
A PBKDF2-derived key is generated
Your data is encrypted with Fernet
All passwords stay encrypted inside password.db
Entering a wrong master password → raises a clean InvalidToken: Invalid master password
⚙️ requirements.txt
Make sure this file contains at least:
cryptography
🔐 Security Notes
Master password cannot be recovered
Forgetting it means losing access to all encrypted data
Database contents are never stored in plaintext
📜 License
MIT License