Expose the CTAP 2.1 minPinLength extension via WebAuthn. This extension allows sites that have been preconfigured on a security key to learn the configured minimum PIN length for the authenticator. See https://fidoalliance.org/specs/fido-v2.1-ps-20210615/fido-client-to-authenticator-protocol-v2.1-ps-20210615.html#sctn-minpinlength-extension

Status in Chromium


In development

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.


Intent to Prototype url

Intent to Prototype thread

Last updated on 2022-02-16