yubikey/yubikey-ssh-pkcs11.md

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

Reference

1. https://github.com/tpm2-software/tpm2-pkcs11/blob/master/docs/SSH.md
2. https://github.com/ThomasHabets/simple-tpm-pk11