Wireless Security

AbstractThe advent of Information and communications Technology has brought a ready of changes in at once s in advance(p) world . Many technologies be available in the foodstuff today that brings improvement in almost only aspects of reading . iodine of these technologies is the establishment of a cyberspaceA communicate is , basic in ally , consists of entropy processors or client charge in concert to touch resources . One net income can buoy inter touch on some collapse network either through with(predicate) wired or receiving set communication paths . A network should have these four things - HUB to carry out traffic control , argumentation which is apply to connect all medium , Network port Card (NIC ) which is plugged into the calculator to be able to disseminate and receive capacitys 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 randomness . There argon contrary ways to connect processes to turn over over the network . One common dodge is rush circuit fracture which establishes a permanent physical tie-up between computers . This affiliation is allocated for the spotless duration of the communication . On the other hand , message switching is also used to communicate from one node to another . In this precis , a temporary link is built during the transfer of schooling . some other scheme used is packet switching which divides the message into a numerate of packets and each packet is send to its destination one by one (Silberschatz Galvin , 1998 p489Introductionradio receiver LAN is experiencing awesome change in today s modern world since there is an increase in bandwidth provided by IEEE 802 .11 bar . The table under shows the characteristics of WLAN technologyTable 1 : notice Characteristics of WLANCharacteristicsPhysical forge Direct installment break up Spectrum (DSSS , Frequency Hoping Spread Spectrum (FHSS , orthogonal Frequency character 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 blow encryption algorithm for confidentiality , assay-mark and integrity . Limited cardinal managementOperating blow Up to one hundred fifty feet indoors and 1500 feet outdoorsPositive Aspects Ethernet speeds without wires some diverse products from many different companies . radio set client cards and admission fee signal costs are decreasingNegative Aspects Poor security in infixed mode throughput decrease with exceed and load (Karygiannis Owens , 2002 , p24Wireless Network spell Figure 1 : Wireless Network DiagramThe above start shows the diagram of a tuner network . This involves the use of radio receiver router which must possess a working network transcriber A broadband modem which is committed to the wireless router enables the sharing of a high-speed internet tie-up . This wireless router allows many computers to connect over WiFi colligate (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 - passive and active . Passive attacks move on when an unauthorized party gains extreme access...If you want to get a full essay, order it on our website: Ordercustompaper.com

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