Recommendation ITU-T Y.4492 (11/2023) Decentralized Internet of things communication architecture based on information-centric networking and blockchain Summary History FOREWORD Table of Contents 1 Scope 2 References 3 Definitions 3.1 Terms defined elsewhere 3.2 Terms defined in this Recommendation 4 Abbreviations and acronyms 5 Conventions 6 Overview of the decentralized IoT communication 7 Decentralized IoT communication requirements 8 Functional architecture of decentralized IoT communication based on ICN and blockchain 8.1 Functional architecture 8.2 Blockchain-based service layer 8.3 ICN layer 8.4 IoT device layer 8.5 IoT application layer 8.6 Reference points Appendix I Decentralized IoT communication architecture in implementation view Appendix II Decentralized IoT communication architecture data transmission process II.1 Name registration process II.2 NDO name publishing process II.3 Public key encryption process II.4 NDO communication process II.4.1 Data request II.4.2 Data response Bibliography