异构无线传感器网络中基于ECC的密钥管理方案

s for the problem of the storage space and resilient of network in random key management scheme for WSN, a new key management is proposed, which is based on ECC (Elliptic Curve Cryptography). The design mainly contain the key pre-distribution based-on ECDSA, key agreement based-on Shortest-Path-Tree and key dynamic updating with Time slice, which ensure that the node just needs less storage space and the network can still remain strongly resilient even though there are large numbers of compromised nodes. The theoretical analysis and simulation experiments show that the proposed scheme can improve the security of network and reduce the key storage effectively.