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    • 3. 发明授权
    • Method for electing aggregator nodes in a network
    • 在网络中选择聚合器节点的方法
    • US07907548B2
    • 2011-03-15
    • US12444557
    • 2006-10-06
    • Dirk WesthoffFrederik Armknecht
    • Dirk WesthoffFrederik Armknecht
    • H04L12/28
    • H04L63/065H04L9/008H04L9/083H04L9/0838H04L67/12H04L2209/16H04L2209/805H04W24/00H04W40/02H04W84/18
    • A method for electing aggregator nodes in a network, wherein the network includes a plurality of sensor nodes to measure data, and at least one of the sensor nodes functioning as aggregator node to aggregate sensored data obtained by at least a subset of the sensor nodes, the network further including at least one sink node to collect data aggregated by the aggregator nodes, the method including: establishing pairwise secret keys between a current aggregator node and each sensor node of the subset of sensor nodes; at each of the sensor nodes of the subset, choosing a random number and encrypting the random number using the established key; providing a communication chain between the sensor nodes of the subset and summing the encrypted random numbers of all sensor nodes of the subset; and determining a new aggregator node on the basis of the resulting sum according to a predefined calculation scheme.
    • 一种用于选择网络中的聚合器节点的方法,其中所述网络包括用于测量数据的多个传感器节点,并且所述传感器节点中的至少一个用作聚合器节点以聚集由所述传感器节点的至少一个子集获得的感觉数据, 所述网络还包括至少一个汇聚节点以收集由所述聚合器节点聚合的数据,所述方法包括:在当前聚合器节点与所述传感器节点子集的每个传感器节点之间建立成对密钥; 在子集的每个传感器节点处,选择随机数并使用建立的密钥对随机数进行加密; 在所述子集的所述传感器节点之间提供通信链,并对所述子集的所有传感器节点的加密随机数求和; 以及根据预定义的计算方案,基于所得到的和来确定新的聚合器节点。
    • 7. 发明申请
    • Method of transmitting data in a network
    • 在网络中传输数据的方法
    • US20050220306A1
    • 2005-10-06
    • US11094394
    • 2005-03-31
    • Dirk WesthoffJoao Girao
    • Dirk WesthoffJoao Girao
    • G08C17/00G09C1/00H04K1/00H04L9/00H04L9/08H04L12/28
    • H04L9/008H04L2209/805
    • Method to transmit data in an ad hoc network or a sensor network with the network comprising a multitude of sensor nodes to sensor data, at least one aggregator node to aggregate the sensored data of at least a subset of the sensor nodes, and at least one sink node to collect the data of the aggregator node is characterized in—regarding a high level of security against attacks from outside while transmitting data, and regarding an economic energy consumption—that the sensored data is encrypted at the sensor nodes, that the encrypted data is transmitted to one of the aggregator nodes, that at the aggregator node an aggregation function is executed on the encrypted data, and that the result of the aggregation function is transmitted to the sink node and decrypted there.
    • 在具有包括多个传感器节点的网络到传感器数据的自组织网络或传感器网络中传送数据的方法,至少一个聚合器节点以聚合传感器节点的至少一个子集的感觉数据,以及至少一个 收集节点以收集聚合器节点的数据的特征在于 - 在传输数据的同时针对来自外部的攻击的高水平的安全性,以及关于感测数据在传感器节点处被加密的经济能量消耗,加密数据 被发送到聚合器节点之一,在聚合器节点处对加密数据执行聚合功能,并且将聚合功能的结果发送到汇聚节点并在那里解密。
    • 9. 发明申请
    • Method for authentication
    • 验证方法
    • US20070067631A1
    • 2007-03-22
    • US11519929
    • 2006-09-13
    • Dirk Westhoff
    • Dirk Westhoff
    • H04L9/00
    • H04L9/3242H04L2209/20H04L2209/805
    • A method for authentication between at least two nodes within a network, preferably a wireless sensor network, is disclosed. The sending node computes a t-bit long hash value by using a hash function h. A transmission of possibly few additional data over the network is designed in such a way that from the sending node to the receiving node only t-k bits of the hash value are transferred as truncated hash value, whereby k is a fix but arbitrary natural number between 1 and t-1. The transmitted hash value is compared to a computed hash value at the receiving node.
    • 公开了一种用于网络内的至少两个节点之间的认证的方法,优选地是无线传感器网络。 发送节点通过使用散列函数h来计算t位长的散列值。 以网络的方式设计可能少的附加数据的传输,从发送节点到接收节点仅将哈希值的tk位作为截断的散列值传送,由此k是固定,但是在1 和t-1。 将传输的散列值与接收节点处的计算散列值进行比较。