基于区块链的网络安全技术综述

Survey on network security based on blockchain

随着移动互联网与物联网技术的发展,网络空间承载了海量数据,必须保证其安全性和隐私性。基于区块链的网络安全机制具有去中心化、不可篡改、可追溯、高可信和高可用的特性,有利于提升网络安全性。探讨了区块链在网络安全方面的应用方案,分析了基于区块链的网络安全机制的主要技术特点和方法以及未来研究方向。首先探讨了数据管理体系应用区块链进行数据管理的方法,利用区块链不可篡改的特性提高数据的真实性和可靠性。其次分析了物联网应用区块链进行设备管理的方案,通过区块链记录和执行设备控制指令,强化物联网设备权限和通信管理。最后研究了域名系统应用区块链的部署方案,利用区块链的去中心化结构抵抗针对中心节点的分布式拒绝服务攻击。

With the development of the mobile intemet and IoT （internet of things）, mass data are stored in the cy- berspace. The network security and privacy are of great significance. The blockchain-based network security mecha- nism has the properties of decentralization, tamper-resistance, traceability, high availability and credibility, and can be applied to improve network security. The application of blockchain in the network security was explored. The main technologies and the future research direction of the blockchain-based network security mechanism were analyzed. Firstly, the blockchain-based data protection scheme was analyzed, which applied the tamper-resistance of the blockchain to improve the authenticity and reliability of data. Secondly, the blockchain-based loT device management scheme was analyzed, which applied the blockchain to record and execute the device control instruction and improve the authority and communication of the loT devices. Lastly, the blockchain-based domain name system was analyzed, which applied the decentralization of the blockchain to resist distributed denial of service effectively.