[keycloak-user] Keycloak realm certificates export and be passed to Knox?

Hi, I am trying to find a way to be able to retrieve a realm certificate which can then be passed to Knox. When a realm is deployed, it generates a new public key, therefore any Knox Configuration would have to be updated with new corresponding certificates.  Knox is used to decrypt singed JWT's. Is this something that can be achieved? I have tried running kcadm to pull the certificate details however i am unable to provide only the cert details which i would then want to output into another file. Examples of kcadm  /opt/jboss/keycloak/bin/kcadm get keys \--server <url> \--realm master \--user <user> \--password <password> \-r <realm> Regards, Jamie