Questions tagged [fido2]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
1
vote
0answers
115 views

Implementing FIDO2 (WebAuthN) in Native iOS

I am currently investigating the idea of implementing FIDO2 (WebAuthN) support in native iOS using Swift. I understand that there is no FIDO2 support in native iOS, and only available through Safari ...
0
votes
0answers
28 views

Why I can't duplicate OpenSK key

I am curious about why I can't duplicate the OpenSK key. I have a few keys that I put the same certificate and private key on them but they are different. I found it useful to have a duplicate key in ...
0
votes
0answers
54 views

FIDO2 - Where do Android and IOS platform authenticators store private key credentials?

I'm new to FIDO2 specification. I'm aware that Android and IOS devices support FIDO2 protocols (even Android phones could act as a physical key for FIDO2 authentication). However, Could anyone let me ...
0
votes
0answers
50 views

FIDO2 Windows vs Linux

I am using a Yubikey 5C as a MFA & smartcard for various application. On my Windows 10 desktop I have set up a FIDO2 PIN - so if I would like to use it within Firefox for example, I have to enter ...
0
votes
1answer
103 views

Can one use a gpg smartcard to implement FIDO2?

From what I understand, the idea of FIDO2 is to use symmetric cryptography, with secret key on the token, and public key on the server. When requesting to connect, the server uses the public key to ...
1
vote
0answers
83 views

“Something you have” on a multi-user device - what is the opinion regarding the NIST AAL3 definition?

The NIST AAL3 specification requires In order to authenticate at AAL3, claimants SHALL prove possession and control of two distinct authentication factors through secure authentication ...
1
vote
0answers
49 views

WebAuthn Variation with non-connect dongle Authenticator

As I read through the WebAuthn / FIDO2 documentation, it appears the authentication is done on the local device to create an attestation to the FIDO server. This future implies the "biometrics" or ...
1
vote
2answers
177 views

Why does WebAuthn require a challenge when asking the client to register a new credential?

When registering a new credential as part of WebAuthn, why does the client need to be sent a challenge? Presumably this is to prevent a replay attack, but wouldn't a replay attack be prevented by TLS ...
6
votes
2answers
222 views

Does injecting my own key material into the authenticator undermine authenticator's attestation?

I'd like to be able to inject my own key material in the FIDO2 authenticator; at the very least it will remove the need to trust the vendor (because we have no guarantee whether the vendor keeps ...
3
votes
1answer
936 views

FIDO and FIDO2 differences

I've been reading both FIDO and FIDO2 specs for a while tring to understand the similarities and differences between both. Here is how I broke it down so far: FIDO: First iteration in creating a ...
1
vote
0answers
82 views

Practicality of Direct Anonymous Attestation [closed]

DAA (Direct Anonymous Attestation) is not the only scheme to achieve anonymous attestation. In general, these schemes allow an entity to stay anonymous throughout the attestation process. The concern ...
3
votes
1answer
150 views

Yubikey - WebAuthn and U2F

I have a yubikey which supports only U2F. It doesn't support FIDO2. I read about U2F and i understand how it works. When i test my Yubikey for WebAuthn on https://webauthn.io it works. I wanted to ...
4
votes
0answers
148 views

Is there any privacy- or security-relevant difference between FIDO2 and SQRL

I just learned about FIDO2 (WebAuthn) and try to make a comparison to the lesser-known novel SQRL authentication scheme. Both seem to use the same key elements: a private, user-resident "master key" ...