Objectives • Explain how nodes exchange wireless signals • Identify potential obstacles to successful wireless transmissions and their repercussions, such as interference and reflection • Understand WLAN (wireless LAN) architecture • Specify the characteristics of popular WLAN transmission methods, including ...
Outline Wireless networks IEEE 802.11 WEP Keys Authentication Encryption Attacks 802.11i and WPA Some Security Solutions 2 Classification of Wireless Systems 3 Elements of a Wireless Network wireless hosts laptop, PDA, IP phone run applications may be stationary ...
Princess Nora Bint Abdulrahman University College of computer and information sciences Networks department Networks Security (NET 536) Prepared by Dr. Samia Chelloug E-mail: samia_chelloug@yahoo.fr Content 1.Basics of computer and network security. 2.Impact of network architecture on network ...
Computer Communication Network Text Books: 1. Behrouz A. Forouzan, “Data Communications and Networking” 2. Andrew Tenenbaum, “Computer Networks” 3. Kurose & Ross, “Computer Networking- A top Down Approach featuring the Internet” 4. William Stallings, “computer ...
Who am I ? Fatimah Alakeel - BSc in Computer Science - MSc in Computer Science- SE - PhD in CS majoring in information security and software engineering Course Description This course provides students with basic knowledge in: Basic concepts of ...
Contact Information Instructor Amir (Amirreza Masoumzadeh) Web: http://www.sis.pitt.edu/~amirreza/ Email: amirreza _at_ sis.pitt.edu Please include “IS1075” in the subject nd 410 IS Bldg. (LERSAIS), 2 cubicle on your right Office hours: Tuesdays 2pm-4pm / by ...
Network Services • Largest campus network and largest bandwidth for an institu te in CAS • 10G backbone • IPv4/IPv6 dual-stack • Wireless covered (>250 APs) • Exchange 4PB data/year • Email/web/collaborative work/ services • >3000 ...
AGENDA The Design The Market (Product Position and Target Market) Selling Points Competitive Advantages (The Specification and Competitors Comparison Table) THE DESIGN The First Router Designed For Your Homes DIR-657 HD Media Router 1000 THE MARKET PRODUCT POSITION & ...
Course Overview Lecture Lab Fundamentals of IoT, basic Basic Python programming, meet Week 1 concepts, applications your Raspberry Pi Smart objects, user interfaces, Sensor programming, control Week 2 sensing, actuation loops, digital/analog I/O Fundamentals of computer and Wi-Fi and Bluetooth ...
Project 1 Architectural Model 7 Project 1: Interaction Model : Phase1 UML sequence diagram Project 1: Interaction Model : Phase2 UML sequence diagram Distributed Systems (1) Distributed systems use local area networks, wide area networks, and interworks for communication. The ...
Mobile Ad hoc Network: Architecture • An autonomous, self-configuring system of mobile devices (laptops, smart phones, sensors, etc.) connected by wireless links • Each node operates as both an end-system and a router • MANET characteristics: –Mobility and ...
Outline Wired Equivalent Privacy (WEP) first security protocol defined in 802.11 Wi-Fi Protected Access (WPA) defined by Wi-Fi Alliance WPA2 802.11i 2 History In the early 1980s, the IEEE began work on developing computer network architecture standards This ...
Preview • Brief History of Wireless networking • Types of Wireless Security o Unsecured o WEP o WPA o WPA2 • Why use wireless encryption? • Additional Security Measures for your router • What to do if on an unsecured ...
Outline • Wireless Networks and Security • Attacking and defending WEP • Attacking and defending WPA/WPA2 • Common defense techniques • Summary Wireless Networks and Security 1) What are Wireless Networks? • A wireless network is the way that a ...
1.Open System Authentication Establishing the IEEE 802.11 association with no authentication STA AP STA Probe Request Probe Response Open System Authentication Request (STA Identity) Open System Authentication Response Association Request Association Response Security in Wireless LAN (802.11i) ...
Last time • LANs • Wireless LANs (WLANs) • Now connections between networks 2 Introduction Many times it is necessary to connect a local area network to another local area network or to a wide area network. Local area network ...
Introduction A presentation of the paper “Your 802.11 Wireless Network has No Clothes” by – William A. Arbaugh,Narendra Shankar,Y.C. Justin Wan at Univ. Maryland at College Park Explosive growth in wireless networks. But many security ...
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