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Secure access control using updateable attribute keys.

Han-Yu Lin1, Tung-Tso Tsai1, Hong-Ru Wu1

  • 1Department of Computer Science and Engineering, National Taiwan Ocean University, Taiwan.

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Summary
This summary is machine-generated.

This study introduces a novel attribute-based access control system for cloud computing, enhancing data security with updatable attribute keys and robust authentication. The system ensures confidentiality and integrity through attribute-based encryption and mutual authentication.

Keywords:
access controlattribute keyauthenticationencryptionupdatable

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Area of Science:

  • Computer Science
  • Cybersecurity
  • Cloud Computing

Background:

  • Cloud computing necessitates robust access control for data confidentiality and integrity.
  • Current symmetric key encryption methods require secure key management.
  • Attribute-based encryption offers flexible access control based on user attributes.

Purpose of the Study:

  • To propose a secure access control mechanism for cloud environments.
  • To enhance data protection using attribute-based mutual authentication and encryption.
  • To introduce a system with periodically updatable attribute keys.

Main Methods:

  • Developing an attribute-based mutual authentication protocol.
  • Implementing attribute-based encryption for secure data access.
  • Designing a system for periodic updates of user attribute keys.
  • Analyzing security against fuzzy selective-ID attacks based on the Decisional Modified Bilinear Diffie-Hellman (DMBDH) problem.

Main Results:

  • The proposed system provides secure access control in cloud environments.
  • Attribute keys are dynamically updatable, enhancing security management.
  • The system demonstrates resilience against fuzzy selective-ID attacks under specific cryptographic assumptions.

Conclusions:

  • The developed attribute-based access control system effectively secures cloud data.
  • Periodically updatable attribute keys offer a significant advantage in dynamic cloud environments.
  • The system's security is theoretically validated against advanced attack vectors.