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arXiv 2109.03574cs.CR
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Hyperledger Fabric的安全和隐私:挑战和开放问题

On the Security and Privacy of Hyperledger Fabric:Challenges and Open Issues

Sotirios Brotsis, Nicholas Kolokotronis, Konstantinos Limniotis, Gueltoum Bendiab, Stavros Shiaeles

摘要:

在过去的几年里,已经提出了无数的许可区块链解决方案,每一个都声称它彻底改变了事务处理的方式以及它提供的安全和隐私保护机制。Hyperledger Fabric是最受欢迎的许可区块链架构之一,对市场产生了重大影响。然而,关于Hyperledger Fabric的安全性和隐私保护机制的架构风险的论文很少。本文将区块链平台的攻击面分为四个部分,即共识、链码、网络和隐私保护机制,在所有这些部分中,攻击者(来自网络内部或外部)都可以利用平台的设计,访问或滥用网络。此外,我们强调了每个组件可以采取的适当对策,以解决相应的风险,并提供一个显着安全和增强的隐私保护Fabric网络。我们希望通过将本文公之于众,我们可以帮助开发人员避免可能被攻击者利用的安全缺陷和实现,同时也可以激励进一步的研究来加强平台的安全性和客户端的隐私。

英文摘要:

In the last few years, a countless number of permissioned blockchain solutions have been proposed, with each one to claim that it revolutionizes the way of the transaction processing along with the security and privacy preserving mechanisms that it provides. Hyperledger Fabric is one of the most popular permissioned blockchain architectures that has made a significant impact on the market. However, there are only few papers of finding architectural risks regarding the security and the privacy preserving mechanisms of Hyperledger Fabric. This paper separates the attack surface of the blockchain platform into four components, namely, consensus, chaincode, network and privacy preserving mechanisms, in all of which an attacker (from inside or outside the network) can exploit the platform's design and gain access to or misuse the network. In addition, we highlight the appropriate counter-measures that can be taken in each component to address the corresponding risks and provide a significantly secure and enhanced privacy preserving Fabric network. We hope that by bringing this paper into light, we can aid developers to avoid security flaws and implementations that can be exploited by attackers but also to motivate further research to harden the platform's security and the client's privacy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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