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Sign arbitrary data with your SSH keys

(www.agwa.name)
637 points h1x | 1 comments | 13 Nov 21 09:13 UTC | HN request time: 0.797s | source
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pizza ◴[13 Nov 21 10:03 UTC] No.29208734[source]▶
I get that they're "public" keys, but I was surprised to learn (and from somebody other than github themselves) that ssh public keys are just available at that github.com/username.keys URL (without there being an option to disable it, it seems?). Did most people already know that? Probably fine but just surprised. Just tried searching their authentication docs [0] and I don't get any results for "public key url" either

https://docs.github.com/en/authentication?query=public+key+u...

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1. daitangio ◴[13 Nov 21 17:12 UTC] No.29211355[source]▶
It is the magic behind fast ubuntu server install: if you provide your github username, the cloud installer will pump keys on your default user and you will be able to ssh to the new server without a display.