IBEET-RSA: Identity-Based Encryption with Equality Test over RSA for Wireless Body Area Networks

Wireless body area network (WBAN) constitutes a widely implemented technique for remote acquisition and monitoring of patient health-related information via the use of embodied sensors. Given that security and privacy protection, including, but not limited to user authentication, integrity, and confidentiality, are both key challenges and a matter of deep concern when it comes to the deployment of emerging technologies in healthcare applications, state-of-the-art measures and solutions are needed to fully address security and privacy concerns in an effective and sensible manner by considering all the benefits and limitation of remote healthcare systems. In this paper, we proposed an efficient and secure identity-based encryption scheme under the RSA assumption providing equality test. We then proved the security of our scheme for one-way secure against chosen-identity and chosen-ciphertext attacks (OW-ID-CCA) by means of the random oracle model. The performance evaluation results indicated that our scheme outperforms other security schemes in terms of providing relatively low computational cost and stable compatibility with WBAN applications.