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ed25519-sk doesn't work, but ecdsa-sk does, despite my security key being FIDO #576

Answered by martelletto
ghost asked this question in Q&A
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The security key is likely a U2F (FIDO) key. U2F keys only support ECDSA. You can use fido2-token -I /dev/hidrawX to obtain information on the key's capabilities. fido2-token is part of the libfido2 package in Arch Linux.

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