Title: A provably secure lightweight certificateless aggregate signature scheme for healthcare wireless sensor network

Authors: Ismaila Adeniyi Kamil; Sunday Oyinlola Ogundoyin

Addresses: Department of Electrical and Electronic Engineering, University of Ibadan, Ibadan, Nigeria ' Department of Electrical and Electronic Engineering, University of Ibadan, Ibadan, Nigeria

Abstract: In healthcare wireless sensor networks (HWSNs), a patient's body usually contains several wearable or implantable wireless sensors which generate and transmit physiological data to a medical server (MS) where authorised medical professionals can access relevant medical data for efficient patient's diagnosis and treatments. To achieve data integrity and authenticity, aggregate signature is generally used. Several certificateless aggregate signature (CL-AS) schemes have been proposed to address the problems in the traditional public key cryptography. However, the performances of the existing CL-AS schemes are sometimes unsatisfactory. In this work, we propose a novel pairing-free certificateless aggregate signature scheme with strong anonymity for HWSN. We show that the scheme is provably secure against Type I and Type II adversaries in the random oracle model based on the elliptic curve discrete logarithm problem (ECDLP) assumption. The performance analysis and comparison show that the scheme is very efficient in terms of computation and communication overhead.

Keywords: healthcare; wireless sensor network; cryptography; elliptic curve discrete logarithm problem; ECDLP; certificateless; random oracle; data; medical; aggregate signature; security.

DOI: 10.1504/IJICS.2021.116305

International Journal of Information and Computer Security, 2021 Vol.15 No.2/3, pp.183 - 215

Received: 26 Feb 2018
Accepted: 28 May 2018

Published online: 09 Jul 2021 *

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