hci-literature checked

Dropbox zxcvbn password strength estimator

Documents a password strength estimator inspired by password crackers that estimates guesses, crack times, score, warning, and suggestions rather than relying on simple character-class rules.

Open source

Pattern Decisions This Source Supports

Pattern Supported decision Required contract Claim note
Password creation Choose password creation when the user must choose or replace a reusable password, passphrase, or memorized secret. Typing, paste, autofill, password-manager generation, deletion, and selection follow native input behavior. Dropbox zxcvbn supports estimating guessability and returning warnings and suggestions instead of relying on simple character-class checklists.

Evidence Role

This source is treated as hci-literature evidence. Use it to validate the decision rules above, not as a visual style reference.

Publisher: Dropbox. Last checked: .