Specifies the Kerberos principal as the owner of the generated Security token.
Use the following format:
HTTP/hostname.domainname@dc_domain_name
hostname and domainame represent the hostname and domain name of the OpenSSO Enterprise instance. dc_domain_name is the Kerberos domain in which the Windows Kerberos server (domain controller) resides. It is possible that the Kerberos server is different from the domain name of the OpenSSO Enterprise instance.