CHAPTER 7Cryptography

This chapter presents the following:

• History of cryptography

• Cryptography components and their relationships

• Steganography

• Algorithm types

• Public key infrastructure (PKI)

• e-mail standards

• Quantum cryptography

• Secure protocols

• Internet security

• Attack types

Cryptography is a method of storing and transmitting data in a form that only those it is intended for can read and process. It is considered a science of protecting information by encoding it into an unreadable format. Cryptography is an effective way of protecting sensitive information as it is stored on media or transmitted through un-trusted network communication paths.

One of the goals of cryptography, and the mechanisms that make it up, is to ...

Get CISSP All-in-One Exam Guide, 6th Edition, 6th Edition now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.