An Efficient and Secure Certificateless Authentication Protocol for Healthcare System on Wireless Medical Sensor Networks

Rui Guo,Qiaoyan Wen,Zhengping Jin,Hua Zhang

doi:10.1155/2013/761240

Abstract

Sensor networks have opened up new opportunities in healthcare systems, which can transmit patient's condition to health professional's hand-held devices in time. The patient's physiological signals are very sensitive and the networks are extremely vulnerable to many attacks. It must be ensured that patient's privacy is not exposed to unauthorized entities. Therefore, the control of access to healthcare systems has become a crucial challenge. An efficient and secure authentication protocol will thus be needed in wireless medical sensor networks. In this paper, we propose a certificateless authentication scheme without bilinear pairing while providing patient anonymity. Compared with other related protocols, the proposed scheme needs less computation and communication cost and preserves stronger security. Our performance evaluations show that this protocol is more practical for healthcare system in wireless medical sensor networks.

Highlights

Wireless medical sensor networks (WMSNs) have a capability of connecting patient with doctor by using of lightweight devices with limited memory, small and low power [1]
In this paper, based on certificateless public key cryptography (CL-PKC) [15], we propose a certificateless authentication scheme without bilinear pairing in healthcare system on WMSN
A certificateless authentication scheme consists of six probabilistic, polynomial time algorithms: Setup, User-Key-Generation, Partial-Key-Extract, Set-Private-Key, Set-Public-Key, and Authentication

Summary

Introduction

Wireless medical sensor networks (WMSNs) have a capability of connecting patient with doctor by using of lightweight devices with limited memory, small and low power [1]. Wu et al [4] proposed a concrete efficient authentication scheme for TMIS In their scheme, Wu et al introduced a precomputing phase to compute costly and time-consuming exponential operations that are stored in a smart card. The Scientific World Journal divulging the patient’s privacy To avoid these risks, based on the identity-based public key cryptography (ID-PKC) [8], Das et al [9] proposed a dynamic ID-based remote client authentication scheme without any verifier table. In this paper, based on certificateless public key cryptography (CL-PKC) [15], we propose a certificateless authentication scheme without bilinear pairing in healthcare system on WMSN.

Preliminaries

Our Protocol

Security Analysis

Comparisons

Conclusions