利用区块链和星际文件系统实现消息队列遥测传输中的问责制和数据完整性

Future Internet Pub Date : 2024-07-13 DOI:10.3390/fi16070246
Sara Lazzaro, Francesco Buccafurri
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引用次数: 0

摘要

确保 MQTT 通信的责任性和完整性对于实现多种物联网应用非常重要。本文介绍了一种结合区块链技术和星际文件系统(IPFS)的新方法,以实现 MQTT 协议中的不可抵赖性和数据完整性。我们的解决方案在离散的时间轮中运行,在此期间,代理从收到的消息中构建一棵梅克尔哈希树(MHT)。然后,代理将根发布到区块链上,并将 MHT 本身发布到 IPFS 上。这种机制保证了发布者和订阅者都能验证所交换信息的完整性。此外,发布者和经纪人与区块链的交互确保他们无法否认发送了所交换的信息。我们提供了详细的安全分析,表明在标准假设条件下,所提出的解决方案可以同时实现数据完整性和问责制。此外,我们还提供了一个实验活动来研究系统的可扩展性和吞吐量。结果表明,我们的解决方案可以随着客户端数量的增加而扩展。此外,从我们的结果来看,吞吐量的减少取决于完整性检查操作。不过,由于这些检查的频率可以自由选择,我们可以将其设置为吞吐量的减少可以忽略不计。最后,我们对解决方案的成本进行了详细分析,结果表明,总体而言,执行成本相对较低,特别是考虑到它所保证的关键安全性和责任效益。此外,我们的分析表明,系统中的用户数量越多,我们解决方案中每个客户端的成本就越低。这再次证明,我们的解决方案不存在任何可扩展性问题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Achieving Accountability and Data Integrity in Message Queuing Telemetry Transport Using Blockchain and Interplanetary File System
Ensuring accountability and integrity in MQTT communications is important for enabling several IoT applications. This paper presents a novel approach that combines blockchain technology and the interplanetary file system (IPFS) to achieve non-repudiation and data integrity in the MQTT protocol. Our solution operates in discrete temporal rounds, during which the broker constructs a Merkle hash tree (MHT) from the messages received. Then the broker publishes the root on the blockchain and the MHT itself on IPFS. This mechanism guarantees that both publishers and subscribers can verify the integrity of the message exchanged. Furthermore, the interactions with the blockchain made by the publishers and the broker ensure they cannot deny having sent the exchanged messages. We provide a detailed security analysis, showing that under standard assumptions, the proposed solution achieves both data integrity and accountability. Additionally, we provided an experimental campaign to study the scalability and the throughput of the system. Our results show that our solution scales well with the number of clients. Furthermore, from our results, it emerges that the throughput reduction depends on the integrity check operations. However, since the frequency of these checks can be freely chosen, we can set it so that the throughput reduction is negligible. Finally, we provided a detailed analysis of the costs of our solution showing that, overall, the execution costs are relatively low, especially given the critical security and accountability benefits it guarantees. Furthermore, our analysis shows that the higher the number of subscribers in the system, the lower the costs per client in our solution. Again, this confirms that our solution does not present any scalability issues.
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