标题： 基于动态物联网生态系统的信任驱动区块链SSI框架 显示英文标题

标题： Endorsement-Driven Blockchain SSI Framework for Dynamic IoT Ecosystems

摘要： 自我主权身份（SSI）在管理物联网（IoT）中的身份方面具有显著潜力，它能够在不依赖中心化实体的情况下实现去中心化的认证和凭证管理。 然而，现有的SSI框架通常将凭证的颁发和撤销限制在受信任的实体，如物联网制造商，这在动态的物联网生态系统中限制了灵活性。 在本文中，我们提出了一种基于区块链的SSI框架，允许任何拥有可验证的信任链接的个人作为凭证颁发者，从而确保去中心化和可扩展的身份管理。 我们的框架采用分层架构，其中信任通过基于背书的计算动态建立，并通过分层的信任链机制维持。 区块链作为可验证的数据注册表，确保身份操作的透明性和不可变性，而智能合约则自动化关键过程，如凭证的颁发、验证和撤销。 一个概念验证实现表明，所提出的框架是可行的，并且与基线相比产生的开销最小，使其非常适合动态和资源受限的物联网环境。 显示英文摘要

摘要： Self-Sovereign Identity (SSI) offers significant potential for managing identities in the Internet of Things (IoT), enabling decentralized authentication and credential management without reliance on centralized entities. However, existing SSI frameworks often limit credential issuance and revocation to trusted entities, such as IoT manufacturers, which restricts flexibility in dynamic IoT ecosystems. In this paper, we propose a blockchain-based SSI framework that allows any individual with a verifiable trust linkage to act as a credential issuer, ensuring decentralized and scalable identity management. Our framework incorporates a layered architecture, where trust is dynamically established through endorsement-based calculations and maintained via a hierarchical chain-of-trust mechanism. Blockchain serves as the Verifiable Data Registry, ensuring transparency and immutability of identity operations, while smart contracts automate critical processes such as credential issuance, verification, and revocation. A proof-of-concept implementation demonstrates that the proposed framework is feasible and incurs minimal overheads compared to the baseline, making it well-suited for dynamic and resource-constrained IoT environments.