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Loading... Loading... Menu zxcvbn-ts is a TypeScript implementation of the zxcvbn password strength estimation library. This document introduces the core concepts, architecture, and capabilities of the zxcvbn-ts system. zxcvbn-ts provides realistic password strength estimation through pattern matching and conservative estimation techniques. Unlike simple rule-based password policies, it analyzes passwords by simulating approaches used by actual password crackers. The library identifies common patterns, estimates guessability, and provides actionable feedback to users.

The system recognizes and weighs various password weaknesses, including: - Common passwords and dictionary words - Names and surnames - Keyboard patterns (e.g., "qwertyuiop") - Simple sequences (e.g., "abcd", "12345") - Date formats - Repeated characters - Leetspeak substitutions (e.g., "p@ssw0rd") For more detailed information about the project's evolution and changes from the original zxcvbn, see Project History and Changes.

Sources: README.md7-27 Sources: README.md36-46 packages/libraries/main/package.json25-39 packages/libraries/pwned/package.json28-40 The diagram above shows the main components of the zxcvbn-ts system: - ZxcvbnFactory: The central orchestrator that coordinates the password strength estimation process - Matching System: Collection of specialized matchers that identify patterns in passwords - Scoring System: Calculates the minimum number of guesses needed to crack a password - TimeEstimator: Converts guess numbers into human-readable time estimates - Feedback Generator: Produces warnings and suggestions based on identified weaknesses - Language Resources: Dictionaries, translations, and keyboard layouts for different languages Sources: README.md7-25 This diagram illustrates the process flow when checking a password's strength: - The application calls the check(password) method on theZxcvbnFactory instance - The factory coordinates with various matchers to identify patterns in the password - The scoring system calculates the minimum number of guesses needed - The time estimator converts guesses to estimated crack times - The feedback generator provides warnings and suggestions - A complete result object is returned to the application The library also provides an asynchronous version using checkAsync() for environments where blocking operations should be avoided.

Sources: README.md36-46 When calling the check method, zxcvbn-ts returns a comprehensive result object containing: Sources: README.md12-25 zxcvbn-ts can be integrated with various JavaScript frameworks and environments. The library consists of multiple packages: - @zxcvbn-ts/core: The main library package - @zxcvbn-ts/matcher-pwned: Optional extension for checking passwords against known breaches - Language packages: Various language-specific dictionaries and translations For detailed integration instructions with frameworks like React, Vue, or Angular, see Framework Integration. For information about creating custom language packages, see Language Support.

Sources: README.md49-53 packages/libraries/main/package.json1-22 packages/libraries/pwned/package.json1-27 zxcvbn-ts offers a sophisticated approach to password strength estimation, going beyond simple rule-based validation to provide realistic assessments based on actual cracking techniques. Its modular architecture allows for customization and extension while maintaining the core functionality of password strength analysis. The library is designed to be both developer-friendly (with TypeScript support, clear APIs, and framework compatibility) and user-friendly (with helpful feedback and internationalization support). Sources: README.md12-25 README.md28-46

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Loading... Loading... Menu zxcvbn-ts is a TypeScript implementation of the zxcvbn password strength estimation library. This document introduces the core concepts, architecture, and capabilities of the zxcvbn-ts system. zxcvbn-ts provides realistic password strength estimation through pattern matching and conservative estimation techniques. Unlike simple rule-based password policies, it analyzes p...

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Sources: README.md7-27 Sources: README.md36-46 packages/libraries/main/package.json25-39 packages/libraries/pwned/package.json28-40 The diagram above shows the main components of the zxcvbn-ts system: - ZxcvbnFactory: The central orchestrator that coordinates the password strength estimation process - Matching System: Collection of specialized matchers that identify patterns in passwords - Scoring...

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The system recognizes and weighs various password weaknesses, including: - Common passwords and dictionary words - Names and surnames - Keyboard patterns (e.g., "qwertyuiop") - Simple sequences (e.g., "abcd", "12345") - Date formats - Repeated characters - Leetspeak substitutions (e.g., "p@ssw0rd") For more detailed information about the project's evolution and changes from the original zxcvbn, se...

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Sources: README.md36-46 When calling the check method, zxcvbn-ts returns a comprehensive result object containing: Sources: README.md12-25 zxcvbn-ts can be integrated with various JavaScript frameworks and environments. The library consists of multiple packages: - @zxcvbn-ts/core: The main library package - @zxcvbn-ts/matcher-pwned: Optional extension for checking passwords against known breaches ...

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Sources: README.md49-53 packages/libraries/main/package.json1-22 packages/libraries/pwned/package.json1-27 zxcvbn-ts offers a sophisticated approach to password strength estimation, going beyond simple rule-based validation to provide realistic assessments based on actual cracking techniques. Its modular architecture allows for customization and extension while maintaining the core functionality o...