You're reading from CompTIA Security+: SY0-601 Certification Guide Complete coverage of the new CompTIA Security+ (SY0-601) exam to help you pass on the first attempt

Product type Paperback

Published in Dec 2020

Publisher Packt

ISBN-13 9781800564244

Length 550 pages

Edition 2nd Edition

Languages

Python

Tools

Kali Linux

Concepts

Cybersecurity

Author (1):

Ian Neil

View More author details

Table of Contents (24) Chapters

Preface

1. Objectives for the CompTIA Security+ 601 exam

Exam Objectives (Domains)

2. Section 1: Security Aims and Objectives FREE CHAPTER

3. Chapter 1: Understanding Security Fundamentals

4. Chapter 2: Implementing Public Key Infrastructure

5. Chapter 3: Investigating Identity and Access Management

6. Chapter 4: Exploring Virtualization and Cloud Concepts

7. Section 2: Monitoring the Security Infrastructure

8. Chapter 5: Monitoring, Scanning, and Penetration Testing

9. Chapter 6: Understanding Secure and Insecure Protocols

10. Chapter 7: Delving into Network and Security Concepts

11. Chapter 8: Securing Wireless and Mobile Solutions

12. Section 3: Protecting the Security Environment

13. Chapter 9: Identifying Threats, Attacks, and Vulnerabilities

14. Chapter 10: Governance, Risk, and Compliance

15. Chapter 11: Managing Application Security

16. Chapter 12: Dealing with Incident Response Procedures

17. Section 4: Mock Tests

18. Chapter 13: Mock Exam 1

19. Mock Exam 1 Solutions

20. Chapter 14: Mock Exam 2

21. Mock Exam 2 Solutions

22. Chapter Review Solutions

23. Other Books You May Enjoy

Hashing and Data Integrity

Hashing is where the data inside a document is hashed using an algorithm, such as a Secure Hash Algorithm Version 1 (SHA1), SHA2, SHA3, and MD5. This turns the data inside the file into a long text string known as a hash value; this is also known as a message digest.

While you are hashing the same data, if you copy a file and therefore have two files containing the same data, then hash them with the same hashing algorithm. It will always produce the same hash value. Let's look at the following examples on hashing and data integrity:

Verifying Integrity: During forensic analysis, a scientist takes a copy of the data before investigation. To ensure that they have not tampered with it during the investigation, they will hash the data before starting and then compare the hash to the data when finished. If the hash matches, then they know that the integrity of the data is intact.
One-Way Function: For the exam, hashing is a one-way...