[GENERAL] Can postgres be configure for GSS/Kerberos authentication without a keyfile?

Can postgres be configure for GSS/Kerberos authentication without a keyfile? I have Kerberos working I compiled postgres with -with-gssapi I've setup the pg_hba.conf with gss and my IP address I'm not sure what to put in the postgres.conf I can do a kinit buckwheat.johnson@SOME_EXAMPLE.COM

[GENERAL] Can postgres be configure for GSS/Kerberos authentication without a keyfile?

Can postgres be configure for GSS/Kerberos authentication without a keyfile? I have Kerberos working I compiled postgres with -with-gssapi I've setup the pg_hba.conf with gss and my IP address I'm not sure what to put in the postgres.conf I can do a kinit buckwheat.johnson@SOME_EXAMPLE.COM