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Soft Set Decision and Cluster Percolation Method-Based Policy Clustering and Encryption Optimization for CP-ABE

Author

Listed:
  • Wei Liu

    (College of Mathematics and System Science, Xinjiang University, Urumqi 830046, China)

  • Nurmamat Helil

    (College of Mathematics and System Science, Xinjiang University, Urumqi 830046, China)

Abstract

In ciphertext-policy attribute-based encryption, there might be different levels of overlapping in the access policies of different data objects outsourced by the same data owner. This paper proposes a soft set decision-making method and cluster percolation method-based policy clustering by using policy similarity for CP-ABE, aiming to merge the duplicated access policy pieces to reduce repeated computations during the encryption process of corresponding data objects. Firstly, the access policies are clustered using either the soft set decision-making or the cluster percolation method. Secondly, the access policies within the same cluster are integrated for further encryption of corresponding data objects as a whole, thereby preventing redundant computations during the encryption process and thus reducing computational overhead. Theoretical analysis and experimental results demonstrate the feasibility and effectiveness of the proposed approach in this paper.

Suggested Citation

  • Wei Liu & Nurmamat Helil, 2024. "Soft Set Decision and Cluster Percolation Method-Based Policy Clustering and Encryption Optimization for CP-ABE," Mathematics, MDPI, vol. 12(2), pages 1-30, January.
    • Handle: RePEc:gam:jmathe:v:12:y:2024:i:2:p:259-:d:1318324
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    References listed on IDEAS

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