Kerberos is an authentication system that was developed at MIT. Encryption in Kerberos is based on DES. Kerberos support is no longer supplied as part of Secure RPC, but a server-side and client-side implementation is included with the Solaris 9 release. See “Introduction to SEAM” in System Administration Guide: Security Services for more information about the Solaris 9 implementation of Kerberos Authentication.