无线传感器网络动态密钥管理方案.pdf

第 2 1 卷 　第 9 期 传 感 技 术 学 报 Vol . 2 1 　N o . 9 2008 年 9 月 CHIN ES E J OU RNAL O F S EN SORS AND AC TUA TORS Sep . 2008 Dyna mic Key Management Scheme f or Wireless Sensor Net works YA N G H aibo , QI U N i ng , C H E N Yourong ( ) Col leg e of I nf orm at ion S cience an d Technology , Z hej i ang S h u ren Uni vers ity , H ang z hou 3 100 15 , Chi na Abstract :For many t raditional key management scheme s unfit for t he con st rained re source no de s in wirele ss sen sor net wor k s , how to reduce ener gy con sump tio n of no de s and guarant ee t he securit y of t he net wor k beco me s t he import ant t ar get of key management scheme s. A TwoTier Dynamic Key Management ( TD KM) Scheme wa s p ropo sed . Thi s scheme include s locationware p airwi se key s in clu st er no de s se ssio n s an d locationba sed co mbinatorial key s in no de s co mmunication s. Wit h co mp arin g t he SEC K scheme , t he TD KM scheme overco me s high ref re shing co st and imp rove s t he securit y p erfor mance . Key words :wirele ss sen sor net wor k s ; dynamic key management ; t wo tier EEACC :6150 P 无线传感器网络动态密钥管理方案 杨海波 ,邱 　宁 ,陈友荣 (浙江树人大学信息科技学院 ,杭州 ,3 100 15) 摘 　要 :传统的密钥管理技术不适合资源受限的无线传感器网络 , 因此在保证网络的安全性下如何降低网络的能量开销已 ( 成为无线传感器网络安全技术的重要部分 。文中提出一种新的密钥管理方案――双层组密钥管理 TwoTier Dynamic Key Management , TD KM) 方案 。该方案把网络拓扑分成上层簇节点之间密钥会