摘要
区块链具有高完整性、集体维护和公开透明等特点,被认为是继大型机、个人电脑、互联网之后计算模式的颠覆性创新,有望推动信息互联网向价值互联网、秩序互联网转变演进.区块链已经从单一的数字货币应用,逐步延伸到经济社会的各个领域,包括金融、公证、社交、医疗、供应链、物联网等.区块链对各领域产生积极影响的同时,其自身也面临来自内外部实体的攻击.结合区块链技术架构,详细分析了区块链应用的技术风险.在此基础之上,深入剖析了现有区块链安全机制的作用和局限性,并结合区块链应用的技术安全风险和安全需求,提出了相应技术的改进方向,为今后区块链技术的发展提供了重要参考.
Blockchain is characterized by high integrity,collective maintenance and openness and transparency.They are regarded as subversive innovations in computing mode after mainframes,personal computers and the Internet.They are expected to promote the evolution of information Internet into value Internet and orderly Internet.Blockchain has gradually extended from a single application of digital money to various fields of economic and social,including finance,notarization,social networking,health care,supply chain,Internet of things and so on.Blockchain has a positive impact on various fields,but they also face attacks from internal and external entities.Based on the block chain function view model,this paper analyzes the technical risks of block chain application in detail.In view of the above risks,the functions and limitations of the existing security mechanisms are analyzed.Combined with the technical security risks and security requirements of blockchain application,the corresponding technical improvement direction suggestions are put forward,which provides important reference for the development of blockchain technology in the future.
作者
梅秋丽
龚自洪
刘尚焱
王妮娜
Mei Qiuli;Gong Zihong;Liu Shangyan;Wang Nina(Data Communication Science and Technology Research Institute,Beijing 100191;Xingtang Telecommunications Technology Co.Ltd,Beijing 100191;Beijing Computer Technology and Application Institute,Beijing 100854)
出处
《信息安全研究》
2020年第1期25-36,共12页
Journal of Information Security Research
基金
国家重点研发计划（2017YFB0802500)
关键词
区块链
安全风险
安全机制
数据保护
隐私保护
blockchain
security risk
security mechanism
data protection
privacy protection
