说明：  无线传感器网络中应用leach算法来识别恶意节点和剔除恶意节点。从而保证网络系统的寿命最长。
(In wireless sensor network，cluster algorithm of nodes is all effective approach and key technology to implement energy saving and flexible management．To improve security and lifetime of clustering network，a secure clustering was pro— posed based on the random and parallel cluster header election algorithm and pre—distributed key scheme．In hypothetical network model，it can elect the cluster header nodes and identify and get rid of malicious nodes，and in data telecommuni— cations，the communication security Can be achieved by using encryption algorithm and thus the network lifetime Call be prolonged．)