基于区块链的数据安全管理系统

Blockchain-based data security management system

数据作为21世纪最重要的资源财富,能为人们创造巨大的商业价值,而数据共享能使收益最大化。针对数据共享存在的隐私泄露、第三方信任危机、数据确权等问题,提出一种基于区块链场景的数据安全管理系统。利用区块链共识协议实现去中心化的数据共享,隐私安全是数据共享的关键,采用签密和基于LWE的BGN加密方案解决隐私泄露问题,采用区块链的不可篡改特性解决数据确权问题。最终实现了机密性、完整性、访问控制、数据确权等安全服务,增强了系统性能。

As the most important resource and wealth in the 21st century,data can create huge commercial value for people,and data sharing can maximize the benefits.Aiming at the problems of privacy leakage,third-party trust crisis,and data confirmation in data sharing,a data security management system based on blockchain scenarios is proposed.The blockchain consensus protocol is used to achieve decentralized data sharing;the signcryption and LWE-based BGN encryption scheme are used to solve the problem of privacy leakage,and the non-tamperable feature of the blockchain is used to solve the problem of data right confirmation.Finally,security services such as confidentiality,integrity,access control,and data authorization are realized,which enhances the system performance.