Secure and Trusted Interoperability Scheme of Heterogeneous Blockchains Platform in IoT Networks

CHINA COMMUNICATIONS(2023)

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Abstract
With the rapid development of the Internet of Things (IoT), there is an increasing need for interac-tion between different networks. In order to improve the level of interconnection, especially the interoper-ability of users/devices between different nodes is very important. In the IoT heterogeneous blockchain sce-nario, how to ensure the legitimacy of the chain and how to confirm the identity of cross-chain informa-tion users/devices become the key issues to be solved for blockchain interoperability. In this paper, we pro-pose a secure and trusted interoperability mechanism for IoT based on heterogeneous chains to improve the security of blockchain interoperability. In this mecha-nism, a primary sidechain architecture supporting au-thentication at both ends of the heterogeneous chain is designed. In addition, a distributed gateway archi-tecture is proposed for cross-chain authentication and protocol conversion. The security and performance analysis shows that our scheme is feasible and effec-tive in improving the security of cross-chain opera-tions in IoT.
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Key words
authentication,blockchain Interoperabil-ity,heterogeneous chain,IoT
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