Chapter 11. Cryptography

Terms you'll need to understand:

  • Symmetric algorithms

  • Asymmetric algorithms

  • Message digests

  • Public key infrastructure (PKI)

  • Steganography

  • IPSec

  • Link encryption

  • End-to-end encryption

Techniques you'll need to master:

  • Identifying cryptographic attacks

  • Enumerating advantages and disadvantages of cryptographic systems

  • Understanding the structure of public key infrastructure

  • Understanding the components of IPSec

  • Determining the differences between block and stream ciphers

Introduction

Cryptography is the science and study of secret writing. It is concerned with the ways in which information can be encoded to prevent disclosure. It is tied closely to two of the three basic pillars of security: integrity and confidentiality. Cryptography offers ...

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