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Prodigy_CS_03

Password_complexity_analyzer

Password Strength Checker

A Python script that evaluates the strength of a password and provides feedback to improve its security. This tool is ideal for ensuring that passwords meet modern security standards.

Features

  • Strength Assessment: Rates passwords as Weak, Moderate, or Strong based on key criteria.
  • Custom Feedback: Provides suggestions to enhance password security, including recommendations for length, case sensitivity, numbers, and special characters.
  • User-Friendly: Simple command-line interface for quick and easy password evaluation.

How It Works

The script evaluates passwords based on the following criteria:

  1. Length:

    • 12+ characters: Stronger password.
    • 8–11 characters: Moderate password.
    • <8 characters: Weak password.

  2. Character Diversity:

    • Includes at least one uppercase letter.
    • Includes at least one lowercase letter.
    • Contains at least one number.
    • Contains at least one special character (e.g., !, @, #, $).

  3. Strength Levels:

    • Strong: Meets all criteria.
    • Moderate: Meets most criteria but lacks a few elements.
    • Weak: Fails to meet several criteria.

Usage

  1. Clone this repository: 
    git clone https://github.com/yourusername/password-strength-checker.git
  2. Navigate to the project directory: 
    cd password-strength-checker
  3. Run the script: 
    python password_strength_checker.py
  4. Enter your password when prompted, and view the strength evaluation along with improvement suggestions.

Requirements

  • Python 3.6 or later
    No additional libraries are required as the script uses Python's built-in capabilities and the re module.

Example

Input:

Enter your password: Pass123

Output:

Password Strength: Moderate  
Suggestions to improve your password:  
- Add at least one special character (e.g., !, @, #, $).  
- Use at least 12 characters.

License

This project is licensed under the MIT License. Feel free to use and modify it.

Contributions

Contributions are welcome! If you encounter issues or have ideas for improvement, feel free to open an issue or submit a pull request.