ZK-CPABE: blockchain-based CP-ABE scheme via zero-knowledge proof

Jinyi Zhao; Jie Zhu; Peng Yin; Yimin Yu; Long Xie

doi:10.1117/12.3038890

7 August 2024 ZK-CPABE: blockchain-based CP-ABE scheme via zero-knowledge proof

Jinyi Zhao, Jie Zhu, Peng Yin, Yimin Yu, Long Xie

Proceedings Volume 13229, Seventh International Conference on Advanced Electronic Materials, Computers, and Software Engineering (AEMCSE 2024); 132293F (2024) https://doi.org/10.1117/12.3038890
Event: Seventh International Conference on Advanced Electronic Materials, Computers, and Software Engineering (AEMCSE 2024), 2024, Nanchang, China

Abstract

The integration of blockchain technology with Ciphertext-Policy Attribute-Based Encryption (CP-ABE) has addressed key challenges in distributed systems, such as mutual trust and collusion, while enhancing auditability of key management. However, existing blockchain-based CP-ABE models face a trilemma, unable to achieve decentralization, scalability, and security concurrently. Therefore, we propose ZK-CPABE, which merges Zero-Knowledge Proofs with blockchain-based CP-ABE, significantly improving verifiability and scalability. This system combines a secure private key distribution and zero-knowledge proofs to construct off-chain computation and scalable transactions for CP-ABE. Our Ethereum-based ZK-CPABE prototype demonstrates its effectiveness and potential for secure, scalable data sharing and access control.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jinyi Zhao, Jie Zhu, Peng Yin, Yimin Yu, and Long Xie "ZK-CPABE: blockchain-based CP-ABE scheme via zero-knowledge proof", Proc. SPIE 13229, Seventh International Conference on Advanced Electronic Materials, Computers, and Software Engineering (AEMCSE 2024), 132293F (7 August 2024); https://doi.org/10.1117/12.3038890

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