Page 287 - CISSO_Prep_ Guide

• Message = objects send to other objects.
• Instantiation = act of creating objects using
classes.
• Inheritance = inheriting data and
functionality from other objects.
• Polymorphism = different objects respond to
the same command in different ways.
• Polyinstantiation – two definitions.
• Programming = creating a new
version of an object by replacing
variables with other values.
• Security/countermeasures = creating
different versions of the same
information for different classification
levels. The goal is to prevent users at
a lower level from discovering what is
really going on at a higher level.
• Common Object Request Broker Architecture
(CORBA):
• Provides a messaging environment for
objects from different platforms and
different languages to locate and
exchange information with each
other.
• Client objects create client stubs,
which interact with object request
broker; server objects create server
skeletons, which interact with object
request broker.

Software Protection Mechanisms