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happycappie's avatar
happycappie
Occasional Contributor
2 years ago

Passkeys don't work with Chrome Extension 2.23.1 and OTP is irregular too

Ever since Chrome Extension 2.23.1, Passkeys do not work when trying to sign in to a web app that has worked for months. The app's error notification is "WebAuthn::AuthenticatorDataVerificationError...
browser extension
happycappie's avatar
happycappie
Occasional Contributor
2 years ago

We debugged the rails web app some more and it appears that an issue with Chrome Extension 2.23.1 is related to the length (# of bytes) of the authenticator data received from 1Password.

We are expecting to receive 37 bytes but Chrome extension is sending 38 bytes. Here is some detail from engineering on how output from Chrome vs Safari extensions differ:

https://github.com/cedarcode/webauthn-ruby/blob/master/lib/webauthn/authenticator_data.rb#L135