Chapter 14. Kerberos V5
This chapter describes Kerberos Version 5, but it assumes you already understand Kerberos V4. So even if you think you’re only interested in V5, it’s a good idea to read the previous chapter first.
Kerberos V5 represents a major overhaul of Version 4. While the basic philosophy remains the same, there are major changes to the encodings and major extensions to the functionality. The motivation behind the changes in Kerberos V5 is to allow greater flexibility in the environments in which Kerberos can be used.