Passcore

Passcore is a Rust library for scoring password strength using a transparent, multi-factor methodology. It provides a simple API to evaluate passwords and returns a score out of 1000, with detailed breakdowns for length, character variety, uniqueness, and penalties for common patterns.

Features

• Password scoring out of 1000 points
• Factors: length, character variety, uniqueness, penalties
• Penalty for common passwords and patterns
• Extensible scoring system for future techniques
• Includes 100k most-used passwords for penalty checks
• Simple Rust API

Installation

Add Passcore to your Cargo.toml:

[dependencies]
passcore = "0.1.0"

Usage

Import and use the scoring function:

use passcore::score;

let password = "MyS3cureP@ssw0rd!";
let score = score(password);
println!("Your password's score is {}", score);

Scoring Breakdown

• Length: up to 400 points
• Character Variety: up to 200 points
• Uniqueness: up to 200 points
• Penalties: up to 200 points (deducted for common passwords or patterns)

Score Labels

• <300 → Weak
• 300–600 → Okay
• 600–800 → Strong
• 800+ → Very Strong
• 980+ → God Like

Contributing

Contributions are welcome! Please open issues or pull requests for improvements, bug fixes, or new scoring techniques.

License

This project is licensed under the MIT License.

passcore