现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2013年
21期
78-82
,共5页
无线传感器网络%分簇%网络安全%密钥管理%基密钥
無線傳感器網絡%分簇%網絡安全%密鑰管理%基密鑰
무선전감기망락%분족%망락안전%밀약관리%기밀약
wireless sensor network%clustering%network security%key management%base key
为了保证无线传感器网络监测到的数据在传输过程中不会被非法窃听、篡改和破坏，提出了基于分簇结构的无线传感器网络的动态混合密钥管理方案，每个簇头随机生成子密钥矩阵，簇头利用动态基密钥为每个成员节点分配互不相同的单向通信密钥；相邻簇头的子密钥矩阵的重叠部作为生成对密钥的基密钥；当簇头的剩余能量低于设定门限值或被捕获时，需重新产生簇头，并动态生成新的子密钥矩阵，实现密钥的动态更新，DHKM方案能适应网络拓扑的变化，对新节点加入的处理比较简单，该方案具有较好的安全性和扩展性，减少了节点的存储空间。
為瞭保證無線傳感器網絡鑑測到的數據在傳輸過程中不會被非法竊聽、篡改和破壞，提齣瞭基于分簇結構的無線傳感器網絡的動態混閤密鑰管理方案，每箇簇頭隨機生成子密鑰矩陣，簇頭利用動態基密鑰為每箇成員節點分配互不相同的單嚮通信密鑰；相鄰簇頭的子密鑰矩陣的重疊部作為生成對密鑰的基密鑰；噹簇頭的剩餘能量低于設定門限值或被捕穫時，需重新產生簇頭，併動態生成新的子密鑰矩陣，實現密鑰的動態更新，DHKM方案能適應網絡拓撲的變化，對新節點加入的處理比較簡單，該方案具有較好的安全性和擴展性，減少瞭節點的存儲空間。
위료보증무선전감기망락감측도적수거재전수과정중불회피비법절은、찬개화파배，제출료기우분족결구적무선전감기망락적동태혼합밀약관리방안，매개족두수궤생성자밀약구진，족두이용동태기밀약위매개성원절점분배호불상동적단향통신밀약；상린족두적자밀약구진적중첩부작위생성대밀약적기밀약；당족두적잉여능량저우설정문한치혹피포획시，수중신산생족두，병동태생성신적자밀약구진，실현밀약적동태경신，DHKM방안능괄응망락탁복적변화，대신절점가입적처리비교간단，해방안구유교호적안전성화확전성，감소료절점적존저공간。
In order to protect the sensing data not to be illegally eavesdropped,tampered and destroyed,a dynamic and hy-brid key management scheme based on clustering structure for wireless sensor networks is proposed in this paper. Each cluster head randomly generates sub-key matrix. The cluster head assigns different one-way communication key to each node by using dynamic base key. The overlapping section of sub-key matrix of adjacent cluster is regarded as the base key which generates the pair-key. When the remaining energy of the head is lower than threshold or is captured,it is needed to generate a new cluster head,and the new sub-key matrix will be generated to achieve dynamic key updating. Compared with the existing protocols,DH-KM scheme supports network topology changing,and is easy to process the new node addition. The scheme has better security and good scalability,and can save storage spaceof the nodes.
