Early versions of this document, describing version 4 of the protocol, were written by Jennifer Steiner (formerly at Project Athena); these drafts provided an excellent starting point for this current version 5 specification. Many people in the Internet community have contributed ideas and suggested protocol changes for version 5. Notable contributions came from Ted Anderson, Steve Bellovin and Michael Merritt [17], Daniel Bernstein, Mike Burrows, Donald Davis, Ravi Ganesan, Morrie Gasser, Virgil Gligor, Bill Griffeth, Mark Lillibridge, Mark Lomas, Steve Lunt, Piers McMahon, Joe Pato, William Sommerfeld, Stuart Stubblebine, Ralph Swick, Ted T'so, and Stanley Zanarotti. Many others commented and helped shape this specification into its current form.