Re: [webauthn] Sign counter alg 507

@agl/@rlin1 

I see the value for signature counts and I think it is providing value in replay attacks and against the proposal of removing this field. 

Regarding Nonce, I think it has some value especially in case of RSA signatures. I don't see its value as much for ECC signatues. The most natural spot for this, IMO, is the extensions section of authenticatorData. I am proposing extensions sections and I believe this is not applicable in all the cases, some authenticators may not want/need to generate random number every time and can be optional.
 

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Received on Wednesday, 30 August 2017 22:04:51 UTC