List of Figures

1-1 Realms Needing Security in an Internet World

4-1 Oracle Public Key Infrastructure

4-2 Multitier Authentication

4-3 Database Administrator Authentication Methods

5-1 Common Uses for Roles

6-1 An Example of a View

7-1 User Roles

7-2 Chronology of Password Lifetime and Grace Period

15-1 Location of Application Context in LDAP Directory Information Tree