Installing and Administering Internet Services

Chapter 11 339

Secure Internet Services

Overview of the Secure Environment and the Kerberos V5 Protocol

Overview of the Secure Environment

and the Kerberos V5 Protocol

This section gives an overview of the secure environment in which the

Secure Internet Services operate, including a simpliﬁed overview of the

Kerberos V5 authentication protocol and related Kerberos concepts.

Kerberos, originally developed by MIT, refers to an authentication

protocol for open network computing environments. Kerberos V5 is the

Kerberos version applicable to the Secure Internet Services. The

Kerberos V5 protocol is speciﬁed in RFC 1510: ‘‘The Kerberos Network

Authentication Service (V5)”.

In this chapter ‘‘non-HP Kerberos” refers to Kerberos implementations

available directly from MIT, or to commercialized versions of Kerberos

based on MIT source code.

Figure 11-1 shows the components of the secure environment in which

the Secure Internet Services and the Kerberos V5 protocol operate. Each

component and arrows 1-6 are explained after the ﬁgure.