# Yubikey PIV PKCS#11 > This project is forked form: https://github.com/google/native-pkcs11
## OpenSC pkcs11-tool Alias: ```shell alias p11='pkcs11-tool --module /FULLPATH/libyubikey_piv_pkcs11.dylib' ``` List certificates: ```shell p11 --list-object --type cert ``` ## OpenSSH Alias: ```shell alias sshp11='ssh -I /FULLPATH/libyubikey_piv_pkcs11.dylib' ``` SSH server: ```shell sshp11 root@example.com ``` ## Configuration Default retired slots are disabled, turn on: ```shell export ENABLE_RETIRED=1 ```