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Effective Analysis of Human Exposure Conditions with Body-worn Dosimeters in the 2.4 GHz Band
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Lightweight Fine-Grained Access Control for Wireless Body Area Networks.

Mohammad Ali1, Mohammad-Reza Sadeghi1, Ximeng Liu2,3,4

  • 1Department of Mathematics and Computer Science, Amirkabir University of Technology, Tehran 159163-4311, Iran.

Sensors (Basel, Switzerland)
|February 22, 2020
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Summary

This study introduces a faster, lightweight attribute-based encryption (ABE) scheme for Wireless Body Area Networks (WBANs) to protect sensitive patient health data. The new ABE scheme enhances data privacy and reduces computational load for wearable sensors and users.

Keywords:
attribute-based encryptioncloud computingfine-grained access controllightweight computationwireless body area networks

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Area of Science:

  • Computer Science
  • Cybersecurity
  • Biomedical Engineering

Background:

  • Wireless Body Area Networks (WBANs) enable remote patient monitoring using wearable sensors.
  • Transmitting sensitive health data necessitates robust privacy and access control mechanisms.
  • Existing encryption methods can be computationally intensive for resource-constrained WBAN devices.

Purpose of the Study:

  • To design a novel attribute-based encryption (ABE) scheme for WBANs.
  • To ensure confidentiality and fine-grained access control for patient health data.
  • To develop a lightweight encryption/decryption mechanism suitable for wearable sensors.

Main Methods:

  • An attribute-based encryption (ABE) scheme with lightweight encryption and decryption was designed.
  • The scheme allows sensors to encrypt data based on access policies with minimal computation.
  • Security was defined and proven in the standard model under the decisional bilinear Diffie-Hellman (DBDH) hardness assumption.

Main Results:

  • The proposed ABE scheme offers significantly faster encryption (over 100x) compared to existing methods.
  • Communication overhead is substantially reduced.
  • Computational overhead for sensors and users during encryption and decryption is minimized.

Conclusions:

  • The developed ABE scheme provides an efficient and secure solution for protecting patient data in WBANs.
  • It addresses the privacy challenges associated with remote health monitoring.
  • The scheme's lightweight nature makes it ideal for deployment on resource-limited wearable and implantable sensors.