摘要
针对当前利用Hadoop技术存储多密级数据时存在存储耗时较长、CPU占用比例较高、拥塞率较高,抗攻击性能较差的问题,提出并设计了基于区块链技术的多密级数据安全存储系统.该系统基于C/S模式,初步设计了包括客户端、中转控制服务器和存储服务器的多密级数据安全存储系统,并对多密级数据的完整性、机密性、身份认证机制、访问控制策略等安全性能进行了具体分析;在此基础上,根据纠删码应用原理设计了系统多密级数据安全存储机制,依据该存储机制,同时采用区块链技术具有去中心化、自主对等,以及难以变更等技术特点构建了多密级数据安全存储共享网络体系,该网络体系以现有的互联网架构为依托,实现了系统各个功能模块之间的交流通信,完成了多密级数据分离存储.系统性能测试结果显示,设计系统能够实现多密级数据的安全、快速存储,同时减小了CPU占用比例和系统拥塞率.
Aiming at the problem of storing multi-level data by using Hadoop technology, which has long storage time, high CPU usage ratio, high congestion rate and poor anti-attack performance, multi-level data security based on blockchain technology is proposed and designed. The storage system, based on the C/S mode, initially designs a multi-level data security storage system including a client, a relay control server and a storage server, and performs integrity, confidentiality, identity authentication mechanism, and access control policy for multi-density data. The security performance is analyzed. On the basis of this, the system multi-density data security storage mechanism is designed according to the application principle of the erasure code. According to the storage mechanism, the blockchain technology is decentralized and autonomously equivalent. It is difficult to change and other technical features to build a multi-density data security storage sharing network system. The network system relies on the existing Internet architecture to realize the communication and communication between various functional modules of the system, and completes the separation and storage of multiple-density data. The system performance test results show that the design system can realize the safe and fast storage of multi-level data, while reducing the CPU usage ratio and system congestion rate.
引文
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