You're reading from Network Protocols for Security Professionals Probe and identify network-based vulnerabilities and safeguard against network protocol breaches

Product type Paperback

Published in Oct 2022

Publisher Packt

ISBN-13 9781789953480

Length 580 pages

Edition 1st Edition

Languages

Python

Tools

Metasploit

Concepts

Network Security

Authors (2):

Deepanshu Khanna

Yoram Orzach

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Table of Contents (23) Chapters

Preface

1. Part 1: Protecting the Network – Technologies, Protocols, Vulnerabilities, and Tools

2. Chapter 1: Data Centers and the Enterprise Network Architecture and its Components FREE CHAPTER

3. Chapter 2: Network Protocol Structures and Operations

4. Chapter 3: Security Protocols and Their Implementation

5. Chapter 4: Using Network Security Tools, Scripts, and Code

6. Chapter 5: Finding Protocol Vulnerabilities

7. Part 2: Network, Network Devices, and Traffic Analysis-Based Attacks

8. Chapter 6: Finding Network-Based Attacks

9. Chapter 7: Detecting Device-Based Attacks

10. Chapter 8: Network Traffic Analysis and Eavesdropping

11. Chapter 9: Using Behavior Analysis and Anomaly Detection

12. Part 3: Network Protocols – How to Attack and How to Protect

13. Chapter 10: Discovering LAN, IP, and TCP/UDP-Based Attacks

14. Chapter 11: Implementing Wireless Network Security

15. Chapter 12: Attacking Routing Protocols

16. Chapter 13: DNS Security

17. Chapter 14: Securing Web and Email Services

18. Chapter 15: Enterprise Applications Security – Databases and Filesystems

19. Chapter 16: IP Telephony and Collaboration Services Security

20. Assessments

21. Index

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Hash functions and message digests

Message authentication is used for the following purposes:

Protecting message integrity: To verify that a message that is sent is not changed during transmission.
Verifying message authenticity: To validate the identity of the message originator; that is, to verify who we get the message from.
Non-repudiation of its origin: To assure the sender that the message was delivered, and to assure the recipient that it is from the sender. This ensures that neither of them can deny that the message was processed.

A hash function is a mathematical function that accepts a variable-length block of data as input and produces a fixed-size hash value as output. The hash function's calculation result is called a message authentication code (MAC).

Hash functions are used to check data integrity. Some applications of hashes are as follows:

In security: To check if the messages or files that have arrived are the same ones that...

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You're reading from Network Protocols for Security Professionals Probe and identify network-based vulnerabilities and safeguard against network protocol breaches

Table of Contents (23) Chapters

Hash functions and message digests

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Authors (2)

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