Chapter 12
Introduction to Cryptography
CERTIFICATION OBJECTIVES
12.01 Introduction to Cryptography Services
12.02 Symmetric Encryption
12.03 Asymmetric Encryption
12.04 Understanding Hashing
12.05 Identifying Encryption Uses
QQUESTIONS
Cryptography has been used in various forms for thousands of years. It is the act of scrambling data such that only intended people can read it. Modern cryptography feeds plain text through encryption algorithms, resulting in cipher text. Symmetric encryption uses a single key for encryption and decryption, whereas asymmetric uses mathematically related keys to secure data. This chapter explores the difference between the most common encryption standards.
1. A network technician notices ...
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