A Key Distribution Protocol Supporting New Added Nodes in Sensor Networks
Bao Li · Jisuanji fangzhen · 2008
Key management is one of the fundamenta1 building blocks of security services.How to reduce the secret key storage and support the communication key establishment between nodes forms the main key distribution problem in sensor networks.This paper,based on E-G protocol,first improves it by dividing the original sensor networks into many sub-networks to reduce key storage,and then discusses a key distribution and management method for supporting the establishment between the new node and original nodes by secret sharing method.The paper gets the relationship between the secret key storage and the entire network connectivity through simulation in C++,finally analyses the storage capacity,communication cost and anti-attack capacity based on the new protocol.