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Enabling efficient traceable and revocable time-based data sharing in smart city.

Jiawei Zhang1, Teng Li1,2, Qi Jiang1,2

  • 1School of Cyber Engineering, Xidian University, Xi'an, China.

EURASIP Journal on Wireless Communications and Networking
|January 21, 2022
PubMed
Summary
This summary is machine-generated.

This study introduces a novel traceable and revocable time-based attribute-based encryption (TR-TABE) scheme for secure data sharing in smart cities. It enhances security for resource-poor devices, ensuring data privacy and preventing unauthorized access.

Keywords:
Attribute-based encryptionRevocabilityTime-based access controlTraceabilityVerifiable outsourced decryption

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Area of Science:

  • Computer Science
  • Information Security
  • Smart City Technologies

Background:

  • Smart city development, driven by cloud, fog, and IoT, necessitates secure data sharing.
  • Sensitive data in smart city applications raises significant security and privacy concerns.
  • Resource-poor user terminals require efficient data access control for smart city data.

Purpose of the Study:

  • To propose an efficient, traceable, and revocable time-based CP-ABE (TR-TABE) scheme.
  • To enable fine-grained, time-based data access control for large-scale smart city applications.
  • To address security challenges in data sharing for smart city environments.

Main Methods:

  • Developed an efficient user tracing and revocation mechanism with forward and backward security.
  • Integrated outsourced decryption to improve efficiency and verified its correctness.
  • Utilized formal security proofs and extensive performance evaluations for validation.

Main Results:

  • The proposed TR-TABE scheme provides efficient, traceable, and revocable data access control.
  • The scheme ensures forward and backward security for user revocation.
  • Outsourced decryption enhances efficiency without compromising result correctness.

Conclusions:

  • The TR-TABE scheme is a practical and secure solution for data sharing in smart cities.
  • It effectively manages access control for large attribute universes and resource-poor terminals.
  • The proposed approach enhances data security and user privacy in smart city applications.