摘要
区块链是一种大量参与者共同维护的基于哈希链的记账单技术.基于区块链技术构造的数据应用不仅具有安全多方计算的优点,可以工作于不完全信任的多方参与环境中,而且具有哈希链的优点,可以防止对时间序列数据的篡改.因而区块链可以看作是去中心化的公共账本,在电子货币、电子合约、公证服务等领域有广泛的应用前景,也受到工业界和学术界广泛关注.描述了区块链的基本技术原理和区块链技术所面临的安全威胁.从区块链应用的角度,分析了现有区块链技术存在的不足,指出区块链技术未来急需解决的研究问题.最后分析了区块链现有的专利申请情况,描述了区块链未来应用前景.
Blockchain is a hash chain maintained by a large number of participants. Blockchain has the merit of securing multiparty computation, and Blockchain can be used in a network with limited trust between each node. It also has the merit of hash chain which can be used to prevent tampering time series data. The industry and academia pay a lot of attention to Blockchain and its applications in areas such as electronic currency , electronic contract and notary service. This paper describes the basic technology behind Blockchain and the threats to Blockchain network. Based on current Blockchain applications, this paper analyzes the deficiency of Blockchain and identifies the key problems in Blockchain research. Finally, this paper analyzes both the domestic and foreign patents on Blockchain and describes the potential applications of Blockchain.
出处
《信息安全研究》
2017年第3期237-245,共9页
Journal of Information Security Research
关键词
区块链
哈希链
分布式数据库
电子货币
智能合约
Blockchain
hash chain
distributed database
electronic currency
smart contract
