【摘要】 随着物联网应用的快速发展,其安全问题也引起越来越多的关注.由于物联网设备众多,且信任机制缺失,物联网设备安全问题日益突出.区块链技术成为可能的解决途径.利用区块链技术的安全机制,物联网可以建立一套可信的加密系统,从而维护数据的安全.为探索如何利用区块链技术解决物联网设备安全问题,一个可行的解决方案是探索区块链应用的身份管理方案.本文通过对区块链应用Augur的身份管理技术进行研究,探索区块链应用的身份管理方案以及潜在风险,并针对Augur的身份管理方案潜在风险和设计缺陷攻击提出了一个基于信誉评估的安全解决方案.该方案选取了6个信誉指标和3种信誉计算方法,为交易者选择有效市场及其他Augur交易活动提供信誉依据.最后本文利用3个指标检验3种方法针对不同用户类型的评估准确度,为评估方法的选择提供了依据.更多还原

【Abstract】 With the rapid development of Internet of Things applications, the security issues have attracted more and more attention. Due to the large number of Internet of Things devices and the lack of trust mechanism, the security of Internet of Things devices has become increasingly prominent.Blockchain technology has become a possible solution. With the security mechanism of Blockchain technology, the Internet of Things can establish a credible encryption system to maintain data security.To explore how to use Blockchain technology to solve the security problem of Internet of Things devices,a feasible solution is to explore the identity management scheme of Blockchain applications. This paper studies Augur’s identity management scheme, which is a typical Blockchain application, and explores the identity management scheme and potential risks of Blockchain application, and proposes a security solution based on reputation assessment for Augur’s identity management scheme that has potential risks and design flaws. The security solution selects 6 credit indicators and 3 credit calculation methods to provide a credibility basis for traders to choose effective market and other Augur trading activities.Finally, this paper uses three indicators to test the accuracy of three methods for different users and provides a basis for the selection of evaluation methods.更多还原