Password Security Toolkit

A comprehensive password security analysis suite including strength checker, common password detection, and breach database lookup. Implements entropy calculation, time-to-crack estimation, and security recommendations. Educational tool for promoting password security best practices.

Features

• Strength Analysis - Calculate password strength and entropy
• Breach Checking - Check passwords against Have I Been Pwned database
• Entropy Calculation - Calculate password entropy in bits
• Security Recommendations - Provide actionable security advice
• Time-to-Crack Estimation - Estimate time to crack passwords
• Common Password Detection - Check against common password lists

Requirements

• Python 3.8+

Installation

pip install -r requirements.txt

Usage

Analyze Password Strength

python password_analyzer.py --password "YourPassword123!"

Check Password Against Breach Database

python password_analyzer.py --password "test" --check-breach

Analyze Password File

python password_analyzer.py --file passwords.txt

Example Output

[*] Analyzing password...
[+] Length: 16 characters
[+] Entropy: 85.2 bits
[+] Strength: Very Strong
[+] Time to crack: ~10^15 years
[!] Recommendations:
    - Password is strong
    - Consider using a password manager

Project Structure

password-security-toolkit/
├── password_analyzer.py    # Main analysis script
├── entropy_calculator.py    # Entropy calculation
├── breach_checker.py        # Breach database checking
├── strength_checker.py     # Strength analysis
├── requirements.txt         # Python dependencies
├── README.md               # This file
└── common_passwords.txt    # Common password list

Security Notice

⚠️ This tool analyzes passwords. Never analyze actual passwords in production. Use only for educational purposes or with test passwords.

License

MIT License

Author

John Bustamante - Cybersecurity Professional