Exam Essentials 75
Summary
In this chapter we covered many components of cryptography and discussed the impor-
tance of each. With a firm grasp of the science of cryptography, you will be able to progress
into the area of pen testing and IT much further than you could without such knowledge.
Exam Essentials
Know the purpose of cryptography. Cryptography is designed to protect both the integ-
rity and confidentiality of information; though the mechanism may vary, the goal is the
same.
Understand symmetric versus asymmetric cryptography. Know why symmetric and
asymmetric are suitable for some applications and unsuitable for others.
Know your applications. Understand why cryptography works and how it can be applied
to any given situation and which processes are well suited to a given situation.
Know your tools and terms. The CEH exam is drenched with terms and tool names that
will eliminate even the most skilled test taker because they simply don’t know what the
question is talking about. Familiarize yourself with all the key terms, and be able to recog-
nize the names of the various tools on the exam.