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UnderstandingAndroidSecurity--WILLIAMENCKMACHIGARONGRANG,McDANIELPennsylvaniaStateUniversityThenextgenerationofopenoperatingsystemswon’tbeondesktopsormainframesbutonthesmallmobiledeviceswecarryeveryday.Theopennessofthesenewenvironmentswillleadtonewapplicationsandmarketsandwillenablegreaterintegrationwithexistingonlineservices.However,astheimportanceofthedataandservicesourcellphonessupportincreases,sotoodotheopportunitiesforvulnerability.It’sessentialthatthisnextgenerationofplatformsprovidesacomprehensiveandusablesecurityinfrastructure.DevelopedbytheOpenHandsetAlliance(visiblyledbyGoogle),Androidisawidelyanticipatedopensourceoperatingsystemformobiledevicesthatprovidesabaseoperatingsystem,anapplicationmiddlewarelayer,aJavasoftwaredevelopmentkit(SDK),andacollectionofsystemapplications.AlthoughtheAndroidSDKhasbeenavailablesincelate2007,thefirstpubliclyavailableAndroidready“G1”phonedebutedinlateOctober2008.Sincethen,Android’sgrowthhasbeenphenomenal:T-Mobile’sG1manufacturerHTCestimatesshipmentvolumesofmorethan1millionphonesbytheendof2008,andindustryinsidersexpectpublicadoptiontoincreasesteeplyin2009.Manyothercellphoneprovidershaveeitherpromisedorplantosupportitinthenearfuture.AlargecommunityofdevelopershasorganizedaroundAndroid,andmanynewproductsandapplicationsarenowavailableforit.OneofAndroid’schiefsellingpointsisthatitletsdevelopersseamlesslyextendonlineservicestophones.Themostvisibleexampleofthisfeatureis,unsurprisingly,thetightintegrationofGoogle’sGmail,Calendar,andContactsWebapplicationswithsystemutilities.Androiduserssimplysupplyausernameandpassword,andtheirphonesautomaticallysynchronizewithGoogleservices.Othervendorsarerapidlyadaptingtheirexistinginstantmessaging,socialnetworks,andgamingservicestoAndroid,andmanyenterprisesarelookingforwaystointegratetheirowninternaloperations(suchasinventorymanagement,purchasing,receiving,andsoforth)intoitaswell.Traditionaldesktopandserveroperatingsystemshavestruggledtosecurelyintegratesuchpersonalandbusinessapplicationsa
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