Security keys are generally stateless save for a global signature counter. While it’s technically possible to implement a stateful security key, physical tokens generally encrypt their state in a credential ID that is stored on the server of the relying party. Resident keys allow the security key to keep state and thus allow a username-less login experience by just proving a local PIN to the device. Developers can exercise this via the existing Webauthn standard.



Specification link

Final published standard: Recommendation, Living Standard, Candidate Recommendation, or similar final form

Status in Chromium


Enabled by default (tracking bug)

Consensus & Standardization

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

  • No signal
  • No signal
  • No signals


Intent to Prototype url

Intent to Prototype thread


Shipped in Chrome 76.

Last updated on 2021-12-13