Abstract
Nowadays, continuous monitoring of a patient’s healthcare data has become a critical factor in human well-being. However, with the rapid advancement of wireless technology, doctors and healthcare professionals can monitor the patient’s healthcare data in real time. But to access the confidential patient’s data which is transferred through the open wireless medium, the secure transmission plays an important role. In this work, the privacy and the anonymity of the end-users (patient/doctor) are preserved using an anonymous blockchain-based authentication scheme. Moreover, in this work initially, mutual authentication is performed between the end-users, followed by encryption and decryption of confidential data. In addition, to avoid reauthentication of the patient again during the movement of a patient from one doctor to another, a transfer authentication protocol is performed between the doctors which enhances performance analysis. The security analysis section illustrates the withstanding capability of the proposed work against various vulnerable attacks. Finally, performance investigation of the proposed work reveals a reduction in computational and communication costs when compared to existing related works.
Highlights
Wireless body network [1], referred to as body sensor network, is a network connecting various nodes such as electronic sensors and actuators, which can be wearable or embedded in a fixed position on the body or under the pores of the skin
Wireless body area network (WBAN) technology was first developed based on the knowledge of wireless personal area network (WPAN) in 1995 to communicate around the human body
To address the aforementioned security threats, this paper introduces a physically secure blockchain-based lightweight privacypreserving anonymous authentication scheme for WBAN
Summary
Wireless body network [1], referred to as body sensor network, is a network connecting various nodes such as electronic sensors and actuators, which can be wearable or embedded in a fixed position on the body or under the pores of the skin. Even though WBAN technology helps in processing a large amount of data, security plays a key role during continuous health monitoring of patients and the processing of data. (i) To propose a privacy-preserving blockchain-based lightweight mutual authentication scheme for both the patient and doctor. Li et al [14] proposed an unlinkable, confidentiality preserving authentication scheme for WBAN users. E patient’s authenticated data is collected by the sensor nodes and they are transmitted to the required end-users anonymously. In this model, there are three main entities, namely, medical network, data sensor regulator, and end-users (doctor/patient). The biotic statistics of the patient and the confidential medical prescription of the doctors are encrypted and securely transferred with the help of these keys which prevents illegal injection of data from the intruder. Bilinearity: e(gρx, gσy ) e(gx, gy)ρσ, gx ∈ Gx&gy ∈ Gy and ∀x, y ∈ Z∗q Nondegeneracy: e(gx, gy) ≠ 1Gz Computability: the bilinear map e: Gx × Gy ⟶ Gz and isomorphism ∇ are computable
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