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I am trying to generate ed25519-sk and ecdsa-sk keys using ssh-keygen on my Windows computer. I have OpenSSH OpenSSH_for_Windows_8.6p1, LibreSSL 3.4.3 installed and Yubikey Firmware version: 5.4.3. But, when I do ssh-keygen.exe -t ed25519-sk -C "hello@example.com" I get below error

Generating public/private ed25519-sk key pair.
You may need to touch your authenticator to authorize key generation.
Key enrollment failed: unknown or unsupported key type

However, generating ecdsa key works fine.

Can anyone please let me know how generate ed25519-sk or ecdsa-sk keys to use with Yubikey and Gitlab?

Thanks in advance

Preeti
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