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A Blockchain-Based Authentication and Authorization Scheme for Distributed Mobile Cloud Computing Services.

Linsheng Yu1, Mingxing He1, Hongbin Liang2

  • 1School of Computer and Software Engineering, Xihua University, Chengdu 610039, China.

Sensors (Basel, Switzerland)
|February 11, 2023
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Summary
This summary is machine-generated.

This study introduces a novel blockchain-based access control scheme for mobile cloud computing. It enhances security and efficiency by integrating authentication and authorization with dynamic permission updates via smart contracts.

Keywords:
access controlauthenticationauthorizationblockchainmobile cloud computing

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Area of Science:

  • Computer Science
  • Information Security
  • Distributed Systems

Background:

  • Mobile cloud computing (MCC) requires robust access control for security.
  • Traditional centralized models suffer from high trust costs and single points of failure.
  • Blockchain offers distributed trust but faces storage overhead challenges.

Purpose of the Study:

  • To develop a blockchain-based authentication and authorization scheme for MCC.
  • To address the limitations of centralized access control and blockchain storage overhead.
  • To enable dynamic access permission updates using smart contracts.

Main Methods:

  • A novel authentication and authorization scheme integrating smart contracts for dynamic permission management.
  • Utilizing blockchain for distributed trust in access control.
  • Designing a system where users register once and access multiple service providers.

Main Results:

  • The proposed scheme integrates authorization into the authentication phase without added costs.
  • Only one transaction is stored on the blockchain per user's access privileges across service providers.
  • Mobile users can register once and access multiple service providers with varying access levels.
  • Security analysis confirms the scheme's security under the random oracle model.
  • Performance analysis demonstrates superior computation and communication efficiencies with low blockchain storage requirements.

Conclusions:

  • The developed scheme provides a secure, efficient, and scalable solution for access control in MCC environments.
  • It effectively overcomes the limitations of traditional centralized models and blockchain storage issues.
  • The integration of smart contracts enables dynamic permission management and enhances user convenience.