Safeguarding security and privacy remains a major challenge with regards to the Internet of Things (IoT) primarily due to the large scale and distribution of IoT networks. The information systems in Smart Homes are mainly based on sharing information through smart devices (IoT) and embedded sensors. Each sensor generates data to be processed or assembled by a central system. This data, while being transmitted over the internet to other users or servers, can be compromised for its privacy, user confidentiality and/or service availability. This paper proposes a novel Blockchain-based solution for secure smart home systems, using a combined hyperledger fabric and hyperledger composer. This solution is designed to overcome reported security limitations in commonly used permissioned blockchains approaches. The proposed architecture contains four layers: Cloud storage, Hyperledger fabric, Hyperledger composer, and a smart home layer. Another important aspect of the proposed solution is the mapping of the attributes of a smart home to those from the hyperledger composer. This mapping allows for a customized, designed-for-purpose solution which can meet the security requirements for IoT based smart homes. The proposed architecture was implemented and tested to improve the integrity, confidentiality, availability, authorization and privacy of smart homes as well as some inherited features, including transparency and interoperability.

物联网（IoT）方面的主要挑战是，由于物联网网络的规模和分布广泛，保障安全和隐私仍然是一项重大挑战。智能家居中的信息系统主要基于通过智能设备（IoT）和嵌入式传感器共享信息。每个传感器生成要由中央系统处理或组装的数据。该数据虽然通过Internet传输给其他用户或服务器，但可能因其隐私，用户机密性和/或服务可用性而受到损害。本文提出了一种新颖的基于区块链的安全智能家居系统解决方案，它使用了超级账本结构和超级账本组合器。该解决方案旨在克服常用的许可区块链方法中报告的安全限制。提议的体系结构包含四层：云存储，Hyperledger架构，Hyperledger编写器和智能家居层。提出的解决方案的另一个重要方面是将智能家居的属性映射到超级账本编辑器的属性。该映射允许定制的，针对特定用途设计的解决方案，该解决方案可以满足基于IoT的智能家居的安全要求。该提议的体系结构已得到实施和测试，以改善智能家居的完整性，机密性，可用性，授权和隐私，以及一些继承的功能，包括透明度和互操作性。专门设计的解决方案，可以满足基于IoT的智能家居的安全要求。该提议的体系结构已得到实施和测试，以改善智能家居的完整性，机密性，可用性，授权和隐私，以及一些继承的功能，包括透明度和互操作性。专门设计的解决方案，可以满足基于IoT的智能家居的安全要求。该提议的体系结构已得到实施和测试，以改善智能家居的完整性，机密性，可用性，授权和隐私，以及一些继承的功能，包括透明度和互操作性。