Security+ Guide to Network Security Fundamentals, 3rd Edition, by Mark Ciampa Knowledge and skills required for Network Administrators and Information Technology professionals to be aware of security vulnerabilities, to implement security measures, to analyze an existing network environment in consideration of known security threats or risks, to defend against attacks or viruses, and to ensure data privacy and integrity. Terminology and procedures for implementation and configuration of security, including access control, authorization, encryption, packet filters, firewalls, and Virtual Private Networks (VPNs). CNIT 120: Network Security http://samsclass.info/120/120_S09.shtml#lecture Policy: http://samsclass.info/policy_use.htm Many thanks to Sam Bowne for allowing to publish these presentations.

1. Chapter 11 Basic Cryptography Security+ Guide to Network Security Fundamentals, Third Edition

2. Defining Cryptography

5. Steganography

10. Information Protection by Cryptography

11. Cryptographic Algorithms

13. Hashing Algorithms

15. Hashing Algorithms (continued)

18. Preventing a Man-in-the-Middle Attack with Hashing

20. Hashing Algorithms Only Ensure Integrity

26. Symmetric Cryptographic Algorithms

29. Substitution Cipher

31. XOR

33. Information Protections by Symmetric Cryptography

39. Asymmetric Cryptographic Algorithms

44. Information Protections by Asymmetric Cryptography

48. RSA Used by eBay

49. RC4 Used by eBay

51. Using Cryptography on Files and Disks