铁路客运电子票据数据共享安全性研究

Data Sharing Security of Railway Passenger Electronic Bill

随着铁路电子客票业务的全面推广,车票进入无纸化时代,电子票据信息共享时,数据的安全性至关重要。从数据共享系统架构和安全防护技术方面,分析铁路客运电子票据数据共享安全性。在此基础上,基于区块链去中心化思想构建以Merkle哈希树为基本结构的电子票据数据共享系统,建立基于环签名和全同态加密的数据存储模式,通过数字水印技术及税控码防止页面数据被篡改,确保票据数据的安全性。以全同态加密技术进行分析,采用加密速度和加密空间指标进行验证,提高铁路客运电子票据数据共享系统的安全性。

Railway ticketing business has entered the paperless era with the full application of electronic tickets.The security of data gets crucial when the data of electronic bill is shared.From the aspects of the data sharing system architecture and the security protection technologies,the security of railway passenger e-bill data sharing is analyzed in this paper.Based on the idea of block-chain decentralization,the data sharing system of electronic bill with Merkle hash tree as the basic structure is constructed.The data storage mode based on the technologies of ring signature and fully homomorphic encryption is established.Through using the digital watermarking technology and tax control code to prevent the page data from being tampered with,and to ensure the security of bill data,the full homomorphic encryption technology is analyzed,and verified by the indexes of the encryption speed and encryption space,which can improve the security of railway passenger e-bill data sharing system.