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Modern Cryptography for Cybersecurity Professionals

You're reading from   Modern Cryptography for Cybersecurity Professionals Learn how you can leverage encryption to better secure your organization's data

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Product type Paperback
Published in Jun 2021
Publisher Packt
ISBN-13 9781838644352
Length 286 pages
Edition 1st Edition
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Author (1):
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Lisa Bock Lisa Bock
Author Profile Icon Lisa Bock
Lisa Bock
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Toc

Table of Contents (16) Chapters Close

Preface 1. Section 1: Securing Our Data
2. Chapter 1: Protecting Data in Motion or at Rest FREE CHAPTER 3. Chapter 2: The Evolution of Ciphers 4. Chapter 3: Evaluating Network Attacks 5. Section 2: Understanding Cryptographic Techniques
6. Chapter 4: Introducing Symmetric Encryption 7. Chapter 5: Dissecting Asymmetric Encryption 8. Chapter 6: Examining Hash Algorithms 9. Section 3: Applying Cryptography in Today's World
10. Chapter 7: Adhering to Standards 11. Chapter 8: Using a Public Key Infrastructure 12. Chapter 9: Exploring IPsec and TLS 13. Chapter 10: Protecting Cryptographic Techniques 14. Assessments 15. Other Books You May Enjoy

Discovering the evolution of symmetric encryption

Today, encryption plays a key role in securing digital data during transactions. This includes everything from online shopping to phone calls, and even messages coming from our watches and other devices that constantly send and receive data. Encryption also protects data at rest, such as data stored in the cloud or on a drive.

Prior to the 1970s, there wasn't much thought about securing digital data. Any data processing was secure in early Local Area Networks (LANs), and the internet was just starting to take shape. However, large organizations began to evaluate the need to secure our data. One such company was IBM, an industry leader in technology. IBM put together a group of scientists to design a solution to protect customer data.

In this section, we'll take a look at some of the motivators behind creating an encryption algorithm to secure data. We'll also discuss the Feistel cipher, which is significant as...

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