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Related Experiment Video

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Searchable and revocable multi-data owner attribute-based encryption scheme with hidden policy in cloud storage.

Shangping Wang1, Tingting Gao1, Yaling Zhang2

  • 1School of Science, Xi'an University of Technology, Xi'an, Shaanxi, China.

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Summary
This summary is machine-generated.

This study introduces a new attribute-based encryption scheme for secure cloud storage. It enhances data security by enabling searchable and revocable access with hidden policies, improving search accuracy and user privacy.

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Area of Science:

  • Computer Science
  • Information Security
  • Cryptography

Background:

  • Data security is a critical concern in cloud storage due to outsourcing data services.
  • Attribute-based encryption (ABE) offers a solution for data security in cloud environments.
  • Existing schemes lack privacy for access structures and combined keyword search with attribute revocation.

Purpose of the Study:

  • To propose a novel searchable and revocable multi-data owner attribute-based encryption scheme.
  • To ensure the privacy of access structures in cloud storage.
  • To enhance data security and search accuracy while supporting attribute revocation.

Main Methods:

  • Developed a new attribute-based encryption scheme for multi-data owners in cloud storage.
  • Integrated keyword search functionality with attribute-based encryption.
  • Implemented attribute revocation mechanisms.
  • Utilized a hidden policy for both ciphertext and keyword index to protect privacy.
  • Security demonstrated in the general bilinear group model.

Main Results:

  • The proposed scheme guarantees the privacy of access structures.
  • It enables attribute-based encryption with both keyword search and attribute revocation.
  • Using the same access policy for keyword index and message encryption improves search result accuracy.
  • The hidden policy effectively protects user privacy.
  • Security and efficiency analyses were conducted.

Conclusions:

  • The new scheme addresses the limitations of existing attribute-based encryption systems.
  • It provides a robust solution for secure, searchable, and revocable data access in cloud storage.
  • The scheme is suitable for dynamic environments where user attributes change over time.