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ignore 0 when comparing signature counters #3

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sorah opened this issue May 19, 2022 · 1 comment

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sorah commented May 19, 2022

clarion/lib/clarion/authenticator.rb

Line 66 in b9a6c41

if sign_count <= last_sign_count

https://www.w3.org/TR/webauthn-3/#sctn-sign-counter

If either is non-zero, and the new signCount value is less than or equal to the stored value, a cloned authenticator may exist, or the authenticator may be malfunctioning.

Owner Author

sorah commented May 26, 2022

Yes, this: Issue 1196788: Make macOS platform authenticator sign counter zero https://bugs.chromium.org/p/chromium/issues/detail?id=1196788&q=component%3ABlink%3EWebAuthentication%20OS%3DMac%20counter&can=1

sorah closed this as completed in

3433d4f

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