基于区块链的5G隐私保护模型研究

摘要/Abstract

摘要： 与3G/4G相比，5G网络进行了许多创新与变革，其中最突出的是：更泛在的接入支持、更灵活的控制和转发机制、更友好的数据共享方式．然而，数据共享过程中的隐私保护问题日益突出．本文提出基于区块链分片技术的数字内容安全共享模型．利用区块链的可追溯、防篡改特点，确保数据共享过程中的安全性．利用区块链的分片技术和星际文件系统（interplanetary file system，IPFS）存储技术，在5G这样低时延、高并发的网络中，确保数据的访问效率．利用附带时间的基于密文策略属性加密技术，可以实现对数据的细粒度访问控制，能够实现较好的隐私保护．最后通过方案对比分析证明了所提模型的隐私性和可扩展性．

关键词: 5G, 隐私保护, 区块链, 属性加密, IPFS

Abstract: Compared to 3G/4G, 5G networks have under made many innovations and changes, most notably: more general access support, more flexible control and forwarding mechanisms, and a more user-friendly way of sharing data, however, the data sharing process of privacy protection issues are increasingly prominent. In this paper, a digital content security sharing model for 5G application based on blockchain shading technology is proposed. The traceability and tamper-proof characteristics of blockchain are used to ensure the security of data sharing process. The proposed model uses blockchain shading technology and (interplanetary file system，IPFS) storage technology to ensure data access efficiency in low-latency, high-synth 5G networks. And it uses time-based (ciphertext-policy attribute-based encryption，CP-ABE) to achieve fine-grained access control of data and better privacy protection. Finally, the privacy and scalability of the proposed model are proved through the comparative analysis of the schemes.

Key words: 5G, privacy protection, blockchain, attribute-based encryption, IPFS

陈烨王永利. 基于区块链的5G隐私保护模型研究[J]. 信息安全研究, 2022, 8(1): 43-.

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