The SUN-DES-1 authorization protocol, developed by Sun Microsystems, is based on Secure RPC (Remote Procedure Call) and requires DES (Data Encryption Software) support. The authorization information is the machine-independent netname, or network name, of a user. This information is encrypted and sent to the server as part of the connection packet. The server decrypts the information, and if the netname is known, allows the connection.
This protocol provides a higher level of security than the MIT-MAGIC-COOKIE-1 protocol. There is no way for another user to use your machine independent netname to access a server, but it is possible for another user to use the magic cookie to access a server.
This protocol is available only in libraries in the OpenWindows Version 3 and later environments. Any applications built with static libraries, in particular Xlib, in environments prior to OpenWindows Version 3 cannot use this authorization protocol.
"D.2.4.3 Allowing Access When Using SUN-DES-1", in this chapter, describes how to allow another user access to your server by adding their netname to your server's access list.