关键词: 传感器网路, 密钥分配, 安全两方计算

Abstract: Key distribution is one of the fundamental building blocks of security services for sensor networks.As sensor networks are very resource-constrained and of large scale,traditional key distribution techniques,such as public key cryptography or key distribution center,are often not effective.A secure and efficient key distribution scheme for wireless sensor networks is presented in this paper.This scheme is based on secure two-party computation.Then the performance of the scheme in term of memory usage,communication and computational overhead and security is analyzed.Compared with other schemes,this one has better performances,which needs less computing overhead and can enhance the security,so it is very suitable for wireless sensor networks.

Key words: wireless sensor networks, key distribution, secure two-party computation