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1、Informatica31(2007)201–208201Reliability,AvailabilityandSecurityofWirelessNetworksintheCommunityCarstenMaple,GeraintWilliamsandYongYueInstituteforResearchinApplicableComputingUniversityofBedfordshireLutonCampus,ParkSquare,Luton,Beds,LU13JU,UKE-mail:carstenmaple@beds.
2、ac.uk,geraintwilliams@beds.ac.uk,yong.yue@beds.ac.ukKeywords:security,WEP,WLAN,WPA,riskassessment,riskmanagement,threatanalysis.Received:March12,2007Wirelessnetworkingincreasestheflexibilityinthehome,workplaceandcommunitytoconnecttotheInternetwithoutbeingtiedtoasingl
3、elocation.Wirelessnetworkinghasrapidlyincreasedinpopularityoverrecentyears.Therehasalsobeenachangeintheuseoftheinternetbyusers.Homeusershaveembracedwirelesstechnologyandbusinessesseeitashavingagreatimpactontheiroperationalefficiency.Bothhomeusersandindustryaresending
4、increasinglysensitiveinformationthroughthesewirelessnetworksasonlinedeliveryofbanking,commercialandgovernmentalservicesbecomesmorewidespread.Howeverundeniablethebenefitsofwirelessnetworkingare,thereareadditionalrisksthatdonotexistinwirednetworks.Itisimperativethatade
5、quateassessmentandmanagementofriskisundertakenbybusinessesandhomeusers.Thispaperreviewswirelessnetworkprotocols,investigatesissuesofreliability,availabilityandsecuritywhenusingwirelessnetworks.Thepaper,byuseofacasestudy,illustratestheissuesandimportanceofimplementing
6、securedwirelessnetworks,andshowsthesignificanceoftheissue.Thepaperpresentsadiscussionofthecasestudyandasetofrecommendationstomitigatethethreat.Povzetek:Zanesljivost,varnostindosegljivostbrezžičnihomrežij.1IntroductionTheuseoftheInternetisincreasingbyhomeusershasatota
7、lof43%oftheworkforce.Ofthoseeligibleforbeencontinuallyincreasingforsometime,andthisteleworking,102,291undertooktheactivityatleastincreasecanalsobeseeninthecontextofbusinesses,someofthetime,14%ofthoseeligibleor6%ofthetotalbankingandgovernmentalservices.Accordingtothew
8、orkforce..IntheUKsimilarstatisticswerewitnessedOfficeforNationalStatistics,morethathalfofthein2001.Inthespringof2001,2.2millionpeop
