yubikey/yubikey-ssh-pkcs11.md

OpenSC: https://github.com/OpenSC/OpenSC

ssh-keygen -D /Library/OpenSC/lib/opensc-pkcs11.so
ssh -I /Library/OpenSC/lib/opensc-pkcs11.so root@example.com

~/.ssh/config

PKCS11Provider /Library/OpenSC/lib/opensc-pkcs11.so

Reference

1. https://github.com/tpm2-software/tpm2-pkcs11/blob/master/docs/SSH.md
2. https://github.com/ThomasHabets/simple-tpm-pk11
3. https://ubuntu.com/server/docs/smart-card-authentication-with-ssh