I大数据环境下在线考试系统安全策略研究摘要随着云计算、物联网、电子商务、企业信息化等的飞速发展,以及智能终端和各种检测、感应设备的普及和建设,全球逐渐进入信息化、网络化,由此产生了指数爆炸般的数据增长,一个大规模生产、分享和应用的数据的时代正在开启,大数据的时代已经到。自跨入21世纪以来,由于在大数据的网络环境下,在线考试安全变得尤为重要,虽然计算机技术对我们国家的教育教学产生了非常深远的影响,但是考试在我国来说还是最为主要的教育成果评判标准。虽然在线考试系统为我们的考试进行提供了很大的便利,但随着网络环境的不断更新与进步,网络上所产生的问题也在一件件的困扰着我们在线考试能够安全有效的进行下去,而本文则是研究在新的大数据环境下的在线考试安全策略,致力于解决在线考试过程中各种安全问题。关键词:大数据;在线考试;安全策略IIAbstractWithcloudcomputing,Internetofthings,therapiddevelopmentofe-commerce,enterpriseinformation,etc,andthepopularityofintelligentterminalandvariousdetection,sensingdevicesandconstruction,andgraduallyintotheglobalinformatizationandnetworking,creatingindexdataofexplosivegrowth,aneraofmassproduction,sharingandapplicationofthedataisopen,theeraofbigdatahasto.Sincethebeginningofthe21stcentury,duetothenetworkenvironmentofbigdata,thesafetyofonlineexaminationhasbecomeparticularlyimportant.Althoughthecomputertechnologyhashadaveryfar-reachingimpactonourcountry'seducationandteaching,theexaminationisstillthemostimportantevaluationstandardofeducationalachievementsinChina.Eventhoughonlineexamsystemprovidesgreatconvenienceforourexam,butalongwiththecontinuousrenewalofnetworkenvironmentandprogress,theproblemofnetworkinoneofplagueusonlineexaminationtosafeandeffective,andthisarticleisresearchundertheenvironmentofthenewbigdataonlineexamsecuritypolicy,iscommittedtosolvetheproblemofallkindsofsecurityintheprocessofonlineexamination.Keywords:bigdata;onlineexamination;thesecuritypolicyIII目录摘要...........................................................................................................................IAbstractII第1章绪论...............................................................................................................11.1研究背景及其意义........................................................................................11.2大数据环境下在线考试系统数据安全现状................................................21.3本文主要研究内容........................................................................................3第2章数据保护关键技术研究...............................................................................42.1部分加密理论与技术简介............................................................................42.1.1分组加密算法......................................................................................42.1.2多媒体数据动态加密..........................................................................42.1.3分块加密..............................................................................................52.2加密数据分析与选择....................................................................................52.3数据库安全策略设计....................................................................................52.3.1身份验证..............................................................................................62.3.2访问控制..............................................................................................62.3.3数据库备...