... Rights ReservedComputer Networking: A Top Down Approach Featuring the Internet, 3rd edition. Jim Kurose, Keith RossAddison-Wesley, July 2004. 8: Network Security8-2Chapter 8: Network SecurityChapter ... in practice:❍firewalls❍security in application, transport, network, link layers 8: Network Security8-3Chapter 8 roadmap8.1 What is network security?8.2 Principles of cryptography8.3 Authentication8.4 ... 8: Network Security8-1Chapter 8Network SecurityA note on the use of these ppt slides:We’re making these slides freely...