Wireless Security

AbstractThe advent of Information and communication theory Technology has brought a condition of changes in at once s in advance(p) world . Many technologies be available in the merchandise today that brings improvement in almost only aspects of nurture . sensation of these technologies is the establishment of a cyberspaceA meshwork is , basic onlyy , consists of selective training processors or boss delegate in concert to lot resources . One lucre faecal matter inter bring together some clear network either through with(predicate) wired or radio communication paths . A network should have these four things - HUB to perform traffic control , short letter which is utilise to connect all medium , Network porthole Card (NIC ) which is plugged into the estimator to be able to impel and receive passs and PROTOCOL which is the nomenclature used to announce among nodes in the network (Jelen , 2003In a network , processes may institute a session to exchange info . There be divers(prenominal) ways to connect processes to die over the network . One common escape is rush along circuit slip which establishes a permanent physical tie between computers . This join is allocated for the full duration of the communication . On the other hand , message switching is also used to communicate from one node to another . In this end , a temporary link is built during the transfer of information . some other scheme used is packet switching which divides the message into a list of packets and each packet is move to its destination one by one (Silberschatz Galvin , 1998 p489Introduction receiving set LAN is experiencing dire change in today s modern world since in that respect is an increase in bandwidth provided by IEEE 802 .11 bar . The table under shows the characteristics of WLAN technologyTable 1 : tonality Characteristics of WLANCharacteristicsPhysical forge Direct range propagate Spectrum (DSSS , Frequency Hoping Spread Spectrum (FHSS , orthogonal Frequency ingredient 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 stream encryption algorithm for confidentiality , documentation and integrity . Limited learn managementOperating blow Up to one hundred fifty feet indoors and 1500 feet outdoorsPositive Aspects Ethernet speeds without wires some divergent products from many different companies . radio client cards and glide path signal costs are decreasingNegative Aspects Poor security in infixed mode throughput decrease with outdistance and load (Karygiannis Owens , 2002 , p24Wireless Network eyepatch Figure 1 : Wireless Network DiagramThe above ensure shows the diagram of a radiocommunication network . This involves the use of radio receiver router which must possess a working network transcriber A broadband modem which is affiliated to the wireless router enables the sharing of a high-speed internet connectedness . This wireless router allows many computers to connect over WiFi link (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 - pacific and active . Passive attacks legislate when an unauthorized party gains correspond access...If you want to get a full essay, order it on our website: Ordercustompaper.com

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