关键词: 密码学, 密钥协商, 无线传感器网络, 椭圆曲线密码体制

Abstract: In Wireless Sensor Network, how to realize the authentication and session establishment among the sensors with lower computational cost is always an interesting issue. This paper proposes a novel two-party authenticated key agreement protocol based on the elliptic curve cryptography, and discusses the security and performance of this protocol. The results show that this protocol can help users establish the secure session key with lower computational cost.

Key words: cryptography, key agreement, Wireless Sensor Network（WSN）, elliptic curve cryptography