this post was submitted on 23 Aug 2025
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Sorry for being silly here, I've been kind of out of the loop with recent technology, what exactly is "passkeys"? I remember reading something when it was announcement, but all I saw was lots of buzzwords and vague "it's new and it's very good" claims.
Is it like, an alternative authorization method? Is it a second factor after I type my login/password, or does it replace passwords? What does it look like, from users perspective?
I replaces passwords with a cryptographic key. When you register at a website, you do not put in a password, instead it generates a key-pair, kinda like you would have with ssh auth. Usually to login you use biometrics, which will unlock the keys on your device. Advantage is that they are phishing resistant (the keys are bound to a specific domain), convenient and if the database of the website is leaked, it doesnt matter since they can only store your public key, which is worthless for authentication.
But passkeys so often call for your Windows login (for those on Windows); doesn't that only give more power to Microsoft?
You can store passkeys in (and use them from) a password manager instead of the OSโs secret vault. I think most major password managers support this now - Bitwarden definitely does.