安全无线传感器网络密钥预分配方案

《安全无线传感器网络密钥预分配方案》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、安全无线传感器网络密钥预分配方案　　文章编号:10019081(2013)07185103doi:10.11772/j.issn.10019081.2013.07.1851摘要:密钥管理是无线传感器网络(WSN)安全的核心问题。基于二元对称多项式的随机密钥预分配方案为节点的通信提供了一种安全机制，但这些方案都存在“tsecurity”问题，很难抵制节点的捕获攻击。为了更好地解决该问题，提高网络的安全阈值及节点的抗捕获能力，采用可转化三元多项式代替二元对称多项式来建立节点间通信，并引

2、入密钥分发节点进行分簇网络密钥分发。同时，由于对节点密钥采用单向Hash函数进行处理，提高了密钥破解难度。分析结果表明，该方案提高了网络的安全性及节点的抗毁性与可扩展性，降低了传感器普通节点的存储与计算开销。关键词:无线传感器网络;可转化三元多项式;Hash函数;分簇;密钥预分配中图分类号:中图分类号：TP309.7文献标志码:A英文标题Securitykeypredistributionschemeforwirelesssensornetworks5英文作者名ZHANGJi1,DUXiao

3、ni2*,LIXu1,LINJipo1英文地址(1.CollegeofComputerScienceandEngineering,NorthwestNormalUniversity,LanzhouGansu730070,China;2.CollegeofMathematicsandStatistics,NorthwestNormalUniversity,LanzhouGansu730070,China英文摘要)Abstract:Keymanagementisthecoresecur

4、ityissueinWirelessSensorNetwork(WSN).Basedonbivariatesymmetricpolynomialsofrandomkeypredistributionscheme,asafetymechanismwasprovidedforthenodescommunication;however,ithasthe“tsecurity”problemandvulnerabletothenodecaptureattack.Inordertowellsolvethis

5、problem,andtoimprovethesafetythresholdvalueofnetworkandnodeabilityofantitrapping,5theauthorsusedtheconvertibleternarypolynomialinsteadofbinarypolynomialtoestablishinternodecommunicationandintroducethekeydistributionnodetodokeydistributionoftheclusterne

6、twork.Thenewschemeimprovedthenetworkantitrappingability.Moreover,decodingthesensornodekeybecamealmostimpossiblebecauseoftheuseoftheonewayHashfunction.Theanalyticalresultsshowthatthisschemehashigherantidestructionability,scalabilityandsecurity,andalsor

7、educestheoverheadofstorageandcomputationamongcommonsensornodes.KeymanagementisthecoreproblemofthesecurityinWirelessSensorNetwork(WSN).Basedonbivariatesymmetricpolynomialsofrandomkeypredistributionscheme,asafetymechanismwasprovidedforthenodescommunicatio

8、n,however,thereareproblemsrelatedtothe“tsecurity”problemandvulnerabletothenodecaptureattack.Inordertowellsolvethisproblem,andtoimprovethesafetythresholdvalueofnetworkandnodes5abilityofantitrapping,theauthorsusestheconver