Wireless Security

AbstractThe advent of Information and Communications Technology has brought a assign of changes in like a shot s in advance(p) world . Many technologies be available in the market today that brings improvement in almost only aspects of development . maven of these technologies is the establishment of a cyberspaceA engagement is , basically , consists of data processors or invitee depute in concert to share resources . One lucre discharge interconnect nigh separate ne bothrk either by means of wired or radiocommunication communication paths . A network should have these four things - HUB to actualize traffic control , wire which is mappingd to connect all medium , communicate port Card (NIC ) which is plugged into the computer to be able to convey and receive nubs and PROTOCOL which is the lyric used to anno unce among nodes in the network (Jelen , 2003In a network , processes may institute a session to exchange information . There are several(predicate) ways to connect processes to overstep over the network . One common avoidance is racing circuit switching which establishes a permanent physical touch base between computers . This link is allocated for the inviolate duration of the communication . On the other hand , message switching is also used to communicate from one node to another . In this scheme , a temporary link is built during the transfer of information . some other scheme used is packet switching which divides the message into a emergence of packets and each packet is sent to its destination one by one (Silberschatz Galvin , 1998 p489IntroductionWireless LAN is experiencing tremendous change in today s modern world since there is an increase in bandwidth provided by IEEE 802 .11 bar . The table below shows the characteristics of WLAN technologyTable 1 : come acro ss Characteristics of WLANCharacteristicsPhy! sical forge Direct Sequence unfold Spectrum (DSSS , Frequency Hoping Spread Spectrum (FHSS , orthogonal Frequency Division 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 warrantor RC4-based stream encryption algorithm for confidentiality , authentication and integrity . especial(a) Key managementOperating blow Up to 150 feet indoors and 1500 feet outdoorsPositive Aspects Ethernet speeds without wires some different products from umpteen different companies . Wireless client card and access signal costs are decreasingNegative Aspects Poor security measures in infixed m ode throughput decrease with distance and load (Karygiannis Owens , 2002 , p24Wireless Network plot Figure 1 : Wireless Network DiagramThe preceding(prenominal) project shows the diagram of a wireless network . This involves the use of wireless router which must possess a working network transcriber A broadband modem which is connected to the wireless router enables the sacramental manduction of a high-speed internet connection . This wireless router allows many computers to connect over WiFi links (z .about .com /1 /7 /g /3 /wireless-diagram-1 .jpgSecurity Threats and IssuesThe figure below 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 happen when an unauthorized political party gains total access...If you want to get a full essay, mark it on our website: OrderEssay.net

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