Re: [FIDO-DEV] Digest for fido-dev@fidoalliance.org - 3 updates in 3 topics

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Aman Mume

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Nov 27, 2023, 6:00:43 PM11/27/23
to fido...@fidoalliance.org

On Tue, 28 Nov, 2023, 1:58 am , <fido...@fidoalliance.org> wrote:
Tim Cappalli <Tim.Ca...@microsoft.com>: Nov 27 04:50PM

There is active work to develop a protocol to securely migrate credentials across providers. I can't say whether all providers will implement it, but there are quite a few players, large and small, that are engaged in the work.
 
tim
 
From: fido...@fidoalliance.org <fido...@fidoalliance.org> on behalf of Franz Winter <xfw...@gmail.com>
Date: Thursday, November 23, 2023 at 06:23
To: FIDO Dev (fido-dev) <fido...@fidoalliance.org>
Subject: [FIDO-DEV] Question on platform lock-in
 
If I go full passkeys on my Apple devices using Apple's Keychain: Would I be able to comfortably do a platform switch to Android in the future?
 
I understand that I would be able to transfer every single passkey for a specific service, but would I be able to transfer all of them together?
 
Thank you!
 
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Emil Lundberg <em...@yubico.com>: Nov 27 10:37AM +0100

It could be that the *credential public key* uses RSA with SHA256, but
the *attestation
key* uses RSA with SHA1. This would mean that you would need to use SHA1 to
verify the *attestation signature*, but any subsequent *assertion
signatures* must be verified with SHA256.
 
Would you mind sharing an attestation object that exhibits the issue?
 
Emil Lundberg
 
Senior Software Engineer | Yubico <http://www.yubico.com/>
 
 
 
 
On Fri, Nov 24, 2023 at 11:08 PM Arshad Noor <arsha...@strongkey.com>
wrote:
 
hetin k <het...@gmail.com>: Nov 26 11:52PM -0800

When Both platform and roaming authenticator registered in android, android
only allow platform authenticator to authenticate and no fallback for
roaming authenticator when both platform and roaming authenticator
available. IOS allow user to choose in this case.
 
@AGL, Can you provide any idea on this?
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