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High efficient key-insulated attribute based encryption scheme without bilinear pairing operations.

Hanshu Hong1, Zhixin Sun1

  • 1Key Laboratory of Broadband Wireless Communication and Sensor Network Technology, Ministry Education, Nanjing University of Posts and Telecommunications, Nanjing, China.

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Summary
This summary is machine-generated.

This study introduces a highly efficient key-insulated attribute-based encryption (ABE) algorithm without pairings. It enhances data security in sharing systems by reducing computation costs and preventing key exposure risks.

Keywords:
ABEHigh efficiencyKey-insulatedWithout pairings

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Area of Science:

  • Cryptography
  • Computer Science
  • Information Security

Background:

  • Attribute-based encryption (ABE) is crucial for secure data sharing.
  • Existing ABE schemes suffer from inefficiency due to frequent bilinear pairing operations, consuming significant computing resources.
  • Key exposure in ABE systems poses a threat to overall data security and confidentiality.

Purpose of the Study:

  • To propose a highly efficient key-insulated ABE algorithm.
  • To eliminate the need for bilinear pairing operations in ABE schemes.
  • To enhance security against key exposure and user revocation in data sharing systems.

Main Methods:

  • Developed a novel key-insulated ABE algorithm.
  • Designed the algorithm to operate without requiring bilinear pairing computations.
  • Implemented a mechanism ensuring forward and backward security during key exposure or user revocation.

Main Results:

  • The proposed ABE scheme significantly reduces computation costs by avoiding bilinear pairings.
  • The key-insulated mechanism effectively addresses security concerns arising from private key exposure.
  • Achieved enhanced efficiency and robust security suitable for data sharing environments.

Conclusions:

  • The developed pairing-free, key-insulated ABE algorithm offers a more efficient and secure solution for data sharing systems.
  • The scheme provides strong protection against key exposure and revocation.
  • This advancement is particularly beneficial for resource-constrained terminal devices in data sharing applications.