基于区块链的物联网信任体系

R. D. Pietro, Xavier Salleras, Matteo Signorini, Erez Waisbard
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引用次数: 72

摘要

物联网(IoT)面临的最大挑战之一是弥合目前分散的信任域。传统的PKI模型依赖于一个共同的信任根,不适合异构物联网生态系统,其中受约束的设备属于独立的管理域。在这项工作中,我们描述了物联网的分布式信任模型,该模型利用现有的信任域并桥接它们以在物联网设备之间创建端到端信任,而不依赖于任何共同的信任根。此外,我们定义了一个新的加密原语,称为义务链,设计为基于信用的区块链,具有内置的声誉机制。它的创新设计实现了广泛的用例和商业模式,这些用目前基于区块链的解决方案根本无法实现,同时不会经历传统的区块链延迟。我们提供了义务链和整体架构的安全性分析,并提供了实验测试,以证明其可行性和质量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A blockchain-based Trust System for the Internet of Things
One of the biggest challenges for the Internet of Things (IoT) is to bridge the currently fragmented trust domains. The traditional PKI model relies on a common root of trust and does not fit well with the heterogeneous IoT ecosystem where constrained devices belong to independent administrative domains. In this work we describe a distributed trust model for the IoT that leverages the existing trust domains and bridges them to create end-to-end trust between IoT devices without relying on any common root of trust. Furthermore we define a new cryptographic primitive, denoted as obligation chain designed as a credit-based Blockchain with a built-in reputation mechanism. Its innovative design enables a wide range of use cases and business models that are simply not possible with current Blockchain-based solutions while not experiencing traditional blockchain delays. We provide a security analysis for both the obligation chain and the overall architecture and provide experimental tests that show its viability and quality.
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