A Low-Latency and Secure Data Sharing Method Based on Blockchain and Outsourced Attribute-Based Encryption
DOI:
https://doi.org/10.64509/jicn.12.44Keywords:
Blockchain, low-latency data sharing, outsourced attribute-based encryption, smart contract, edge computing securityAbstract
Current data sharing mechanisms face limitations in fine-grained access control, encryption overhead, terminal resource consumption, and result verifiability. These issues make them unsuitable for the low-latency and high-security demands of drone swarm collaboration in cloud-edge-end architectures. To address these challenges, this paper proposes a secure and low-latency data sharing method based on blockchain and outsourced attribute-based encryption. First, in the edge layer, a blockchain network is responsible for enforcing access control, where policy-matching smart contracts enforce fine-grained attribute-based access control. Second, encryption and decryption tasks are outsourced to the edge and cloud, effectively reducing the computational burden on terminal devices. Third, a consistency verification smart contract is introduced to validate outsourced results, ensuring data confidentiality and integrity. Experimental results show that the proposed method significantly lowers system latency and terminal overhead while maintaining strong security, making it suitable for edge-collaborative applications with strict real-time requirements.
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