For these two it is up to the SP owner to provide them.
ui/conf/certs/sp.key - SP private key file
ui/conf/certs/sp.crt - SP cert file
This one in in the federation metadata:
ui/conf/certs/idp.crt - IDP cert file
URL is https://<adfs URL>/FederationMetadata/2007-06/FederationMetadata.xml it is in base64 within the file.