A Key Establish Scheme for WSN Based on IBE and Diffie-Hellman Algorithms

It is an important challenge to find out a suitable key establishment scheme for wireless sensor networks due to limitations of power,computation capability and storage resources.Many schemes based on random predistrubution technique and public key cryptography are investigated.Recently,a practical identity-based encryption technique is proposed.This paper presents an identity-based key establishment scheme for key predistribution and exchange in wireless sensor networks.It reviews first the identity-based encryption,particularly,the Boneh-Franklin algorithms.It describes a novel key establishment scheme based on the basic Boneh-Franklin and Diffie-Hellman algorithms.It discusses the efficiency and security of our scheme by comparing with random key assignment technique and symmetric key technique.