A Novel Encryption Scheme for Wireless Sensor Networks Based on Identity-Based Encryption

It is an important challenge to find out 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.In this paper,we present an identity-based encryption scheme for wireless sensor networks.We review identity-based encryption and decryption first,particularly,the Boneh-Franklin algorithms.Then we describe a novel approach for encryption in wireless sensor networks based on the basic Boneh-Franklin algorithm.We discuss the efficiency and security of our scheme by comparing with random key assignment technique and asymmetric key technique.Analysis shows that our scheme has some advantages in terms of key management,storage requirement and security.It provides a new approach for encryption in wireless sensor networks.