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Cryptography and Network Security Seminar and PPT with PDF Report: There are three key process techniques.They are: Symmetric-key encryption, A symmetric-key encryption and Hash functions. Basic Security Measures The basic security measures for computer systems fall into four categories: External security:- Protection from environmental damage. computers, networks . Cyber Security, also referred to as information technology security, focuses on protecting computers, networks, programs and data from unintended or unauthorized access, change or destruction. Chapter 5 Implementing Intrusion Prevention. WAN is group of MANs or LANs or the mixture of both network. So, everyone needs to know about the basics of network security so that each and everyone can protect their network. Network security PPT Template #72623 Price: $0.00. http://www.zdnet.co.uk/news/networking/2006/04/19 "Malware," short for "malicious software," includes viruses, … added to favorites. 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Cryptography and Network Security: Principles and Practice, 2nd Edition by William Stallings, Prentice Hall, NJ, 1999, ISBN: 0-13-869017-0. 4. See our Privacy Policy and User Agreement for details. You can change your ad preferences anytime. NETWORK SECURITY 2. In its simplest term, it is a set of rules and configurations designed to protect the integrity, confidentiality and accessibility of computer networks and data using both software and hardware technologies. Network Security PPT Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. SlideShare Explorar Pesquisar Voc ... Cryptography.ppt 1. Network security is preventing attackers from achieving objectives through unauthorized access or unauthorized use of computers and networks. applied to computers and networks. Network security is a broad term that covers a multitude of technologies, devices and processes. 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