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An Improved Proxy Re-Encryption Scheme for IoT-Based Data Outsourcing Services in Clouds.

Han-Yu Lin1, Yao-Min Hung1

  • 1Department of Computer Science and Engineering, National Taiwan Ocean University, Keelung 202, Taiwan.

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PubMed
Summary
This summary is machine-generated.

This study introduces a secure proxy re-encryption protocol for Internet of Things (IoT) data outsourcing in clouds. The bidirectional, multi-hop scheme offers enhanced security and efficiency for cloud data transfer.

Keywords:
IoTbilinear pairingcloud computingdata outsourcingproxy re-encryption

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Area of Science:

  • Cloud Computing
  • Internet of Things (IoT)
  • Cryptography

Background:

  • IoT-based data outsourcing offers flexibility and cost reduction for enterprises.
  • Secure data transfer in clouds is crucial, with proxy re-encryption as a viable solution.
  • Existing schemes may lack bidirectional or multi-hop capabilities for complex IoT environments.

Discussion:

  • A novel secure proxy re-encryption protocol is proposed for IoT data outsourcing.
  • The scheme is provably secure under the hardness of the bilinear inverse Diffie-Hellman problem (BIDHP).
  • It supports bidirectional and multi-hop re-encryption, enhancing data transformation flexibility.

Key Insights:

  • Ciphertext length is independent of the number of IoT nodes.
  • Efficient re-encryption (54 ms for 100 devices) and decryption (two exponentiations per node).
  • Outperforms related protocols in terms of computational cost.

Outlook:

  • Potential for wider adoption in secure IoT cloud services.
  • Further research could explore integration with other advanced cryptographic techniques.
  • Enables more robust and scalable data sharing in distributed IoT systems.