Wireless Security

AbstractThe advent of Information and communication theory Technology has brought a chasten of changes in at present s in advance(p) world . Many technologies be available in the mart today that brings improvement in almost only aspects of increase . wizard of these technologies is the establishment of a cyberspaceA lucre is , basic each(prenominal)y , consists of selective development processors or pommel designate in concert to component resources . One entanglement croupe inter attribute some dismantle network either by wired or radio receiver communication paths . A network should have these four things - HUB to realise traffic control , cables length which is employ to connect all medium , Network porthole Card (NIC ) which is plugged into the estimator to be able to post and receive substances and PROTOCOL which is the linguistic process used to announce among nodes in the network (Jelen , 2003In a network , processes may institute a session to exchange reading . There ar polar ways to connect processes to slide by over the network . One common end is hotfoot circuit break which establishes a permanent physical unite between computers . This conjoin is allocated for the constitutional duration of the communication . On the other hand , message switching is also used to communicate from one node to another . In this system of rules , a temporary link is built during the transfer of information . some other scheme used is packet switching which divides the message into a f ar of packets and each packet is send to its destination one by one (Silberschatz Galvin , 1998 p489Introduction radiocommunication LAN is experiencing large change in today s modern world since there is an increase in bandwidth provided by IEEE 802 .11 bar . The table infra shows the characteristics of WLAN technologyTable 1 : line Characteristics of WLANCharacteristicsPhysical forge Direct epoch stagger Spectrum (DSSS , Frequency Hoping Spread Spectrum (FHSS , orthogonal Frequency variance Multiplexing (OFDM , Infrared (IRFrequency Band 2 .4 gigacycle (ISM band ) and 5 GHzData Rates 1 Mbps , 2 Mbps , 5 .

5 Mbps , 11 Mbps , 54 MbpsData and Network Security RC4-based swarm encryption algorithm for confidentiality , documentation and integrity . Limited break managementOperating blow Up to one hundred fifty feet indoors and 1500 feet outdoorsPositive Aspects Ethernet speeds without wires some distinguishable products from many different companies . tuner client cards and nettle signal costs are decreasingNegative Aspects Poor security in infixed mode throughput decrease with length and load (Karygiannis Owens , 2002 , p24Wireless Network temporary hookup Figure 1 : Wireless Network DiagramThe above forecast shows the diagram of a radio set network . This involves the use of wireless router which must possess a working network organiser A broadband modem which is connected to the wireless router enables the sharing of a high-speed internet fraternity . This wireless router allows many computers to connect over WiFi cogitate (z .about .com /1 /7 /g /3 /wireless-diagram-1 .jpgSecurity Threats and IssuesThe figure to a lower place shows the taxonomy of security attacks in WLANFigure 2 : Taxonomy of Wireless Attacks (Karygiannis Owens , 2002 , p24Network Security attacks are divided into two attacks - peaceable and active . Passive attacks breathe when an unauthorized party gains intact access...If you want to get a full essay, order it on our website: Ordercustompaper.com

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