Arnar Birgisson (@arnarbi) header
Arnar Birgisson (@arnarbi) profile picture

SWE @ Google. Identity, authentication, FIDO, W3C Webauthn.

San Francisco, CA
Joined June 2008
Photo by Arnar Birgisson (@arnarbi)Photo by Arnar Birgisson (@arnarbi)Photo by Arnar Birgisson (@arnarbi)
PSA: If you're implementing passkeys on your website, make sure to set authenticatorSelection.residentKey to "preferred" or "required" for the create call. Otherwise credentials on Android will be neither discoverable nor managed by a password manager.
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Arnar Birgisson retweeted
We've started rolling out support for passkeys that let users sign in to our products with a fingerprint, a face scan or a screen lock PIN. Starting today, this will be available as an option for Google Account users. blog.google/technology/safet…
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So long passwords, thanks for all the phish! #passkeys for Google accounts are here. security.googleblog.com/2023…
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Yikes – at Oakland, CA
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Check out Google's expanded help for Ukraine, including security + counter-disinfo infrastructure and services @google blog.google/outreach-initiat…
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Arnar Birgisson retweeted
This is a great blog post from @agl__, one of my favorite of my collaborators at Google on passkeys, about implementing server-side support for passkeys by hand, as opposed to using some kind of package. imperialviolet.org/2022/09/2…
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Some love for passkeys based on @FIDOAlliance at #io22!!!
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Seriously, why did nobody tell me about xxd -i before?
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Can we please start putting at least a year-stamp on academic papers? Scanning references for max(year-of-cited-papers) is silly.
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Arnar Birgisson retweeted
If by "show off her baby bump," you mean "visits the UN to encourage it to investigate allegations of genocide by ISIS," this is correct. teapawt.net/TIME/status/8398470093…
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Arnar Birgisson retweeted
Into building secure systems? Into language/browser runtime systems? Formal semantics!? You still have time!Apply: goo.gl/KDDDx4
Need random in [1,200]? Just pick one in [1,100] and double it. #wtf teapawt.net/thezeist/status/625029…
A call to PHP’s mt_rand generates only odd numbers 3v4l.org/dMbat
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