Kerberos is a network authentication protocol
designed to provide strong authentication for client/server applications
by using secret-key cryptography. It was developed at the Massachusetts
Institute of Technology as part of Project Athena in the mid-1980s.
Project Athena's mandate was to explore diverse uses of computing
and to build the knowledge base needed for longer-term strategic decisions
about how computers fit into the MIT curriculum.
Starting with Version 7.3-1, HP provides Kerberos
as part of the OpenVMS Alpha operating system. Kerberos is compatible
with OpenVMS Alpha Version 7.2-2 and higher, and OpenVMS VAX Version
7.3 and higher.
Until Kerberos V4, this technology was not available
to the general public. Prior versions were for only internal Project
Athena use. Kerberos V5, the current implementation, is the first
The Kerberos protocol uses strong cryptography,
so that a client can prove its identity to a server (and vice versa)
across an insecure network connection. After a client and server have
used Kerberos to prove their identity, they can also encrpt all of
their communications to assure privacy and data integrity.
For more information about Kerberos, see HP Open Source Security for OpenVMS, Volume 3: Kerberos or the Kerberos for OpenVMS website at: