区块链环境下的零售物流隐私保护模型  

Retail logistics privacy protection model in the blockchain environment

作　　者：檀钟盛 陈春晖 刘书信 黄礼钦 TAN Zhongsheng;CHEN Chunhui;LIU Shuxin;HUANG Liqin(School of Internet Economics and Business,Fujian University of Technology,Fuzhou 350118,China)

机构地区：[1]福建理工大学互联网经贸学院,福州350118

出　　处：《重庆理工大学学报（自然科学）》2024年第4期181-188,共8页Journal of Chongqing University of Technology：Natural Science

基　　金：福建省科技创新战略研究项目(2019R0086);福建省本科高校教育研究项目(FBJG20190174);福建省教育科学研究课题项目(2018CG02748)。

摘　　要：代理重加密被广泛应用在解决传统零售物流存在的用户隐私泄露问题,但传统代理重加密存在代理节点为恶意节点的情况,为此提出一种基于区块链和代理重加密的零售物流模型。利用区块链、代理重加密和星际文件系统有效解决用户隐私泄露问题;同时,针对代理节点为恶意节点的情况,设计针对代理节点的奖惩机制,区块链节点在成为代理节点时需要质押合约规定代币,若代理节点为诚实节点则会获取合约对应的代币奖励,反之则会扣除质押在合约中的代币。实验结果表明模型能够在正常的开销下实现物流流程,证明所提算法在加解密方面跟其他方案相比具备一定的优越性。Traditional retail logistics may expose customers’privacy information.To address the problem,the proxy re-encryption is widely employed,but a malicious node may exist in the proxy node.In this paper,a retail logistics model based on blockchain and proxy re-encryption is proposed.It employs blockchain,proxy re-encryption and interplanetary file system to effectively prevent the leakage of users’privacy information.Meanwhile,the model designs a reward and punishment mechanism for proxy nodes to prevent a malicious one from occurring.When blockchain nodes become proxy nodes,they need to pledge the tokens stipulated in the contract.If the proxy node is honest,it will obtain the token reward according to the contract.Our experimental results show the model realizes the logistics process under normal overhead.A performance analysis demonstrates the proposed algorithm performs better in both encryption and decryption compared with other schemes.

关 键 词：区块链 椭圆曲线 物流隐私 代理重加密 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]