A Study on Blockchain-Based Data Proxy Re-Encryption Privacy Protection
Wenjin Huang, Xuejun Yu, Zhongcheng Ma · 2024
The end-edge cloud architecture is a hierarchical distributed computing model that can satisfy the needs of various applications in high computing capacity service, high storage capacity service and low latency capacity service, however, the lack of an effective trusted storage mechanism under the end-edge cloud structure leads to a series of data leakage phenomena: firstly, the existence of the edge terminal devices leads to the data susceptibility to attacks and loss of data; secondly, the complexity of the node interaction in the edge scenario resulting in impaired data accuracy. In this paper, we focus on the problem of storage trustworthiness of edge nodes under the end-edge cloud structure, which mainly includes the two aspects of trustworthy storage of data and efficient interaction of data, in order to solve these problems, this paper proposes a blockchain-based data proxy re-encryption privacy protection method. By combining the blockchain mechanism and proxy re-encryption algorithm, the data resources of the edge nodes are re-encrypted and then uplinked for storage, which not only protects the security of transactions, but also realizes the double protection of user privacy and resources.