~  ssh-keygen -vvv -t ecdsa-sk
Generating public/private ecdsa-sk key pair.
You may need to touch your authenticator to authorize key generation.
debug3: start_helper: started pid=382648
debug1: start_helper: starting /usr/lib/ssh/ssh-sk-helper
debug3: ssh_msg_send: type 5
debug3: ssh_msg_recv entering
debug1: sshsk_enroll: provider "internal", device "(null)", application "ssh:", userid "(null)", flags 0x01, challenge len 0
debug1: sshsk_enroll: using random challenge
debug1: sk_probe: 1 device(s) detected
debug1: sk_probe: selecting sk by touch
debug1: ssh_sk_enroll: using device /dev/hidraw5
debug1: ssh_sk_enroll: attestation cert len=496
debug1: ssh_sk_enroll: authdata len=230
debug1: main: reply len 1083
debug3: ssh_msg_send: type 5
debug3: reap_helper: pid=382648
Enter file in which to save the key (/home/asd/.ssh/id_ecdsa_sk): /home/asd/aaa
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/asd/aaa
Your public key has been saved in /home/asd/aaa.pub
The key fingerprint is:
SHA256:Po+FocnGeme4oQFooTqXc8zRzY/ci6GKHNspBRlOx9Y asd@arch
The key's randomart image is:
+-[ECDSA-SK 256]--+
|   . .           |
|  o + E          |
| + =             |
|..=  . o         |
|o.... . S        |
|o  =.+ = *       |
|o =.= B.B +      |
| +.B *oooB .     |
|  +.*oo+o o      |
+----[SHA256]-----+