Re: [webauthn] Non-incrementing signature counters could be due to race condition (#2176)

> What if the RP stores a snapshot of the counter of all authenticators for a user at the time a challenge is vended? That way you'd be able to compare the counter against the value at the time you requested an assertion.

That's a clever remediation, but the focus of this PR is simply to describe some possible causes for counter mismatch rather than suggest how an RP should deal with it.

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Received on Wednesday, 23 October 2024 18:40:43 UTC