| 题名 | DIDAPPER: A Practical and Auditable On-Chain Identity Service for Decentralized Applications |
| 作者 | |
| 发表日期 | 2023 |
| 会议名称 | 5th IEEE International Conference on Decentralized Applications and Infrastructures, DAPPS 2023 |
| 会议录名称 | Proceedings - 2023 IEEE International Conference on Decentralized Applications and Infrastructures, DAPPS 2023
 |
| 页码 | 151-157 |
| 会议日期 | 2023-07-17——2023-07-17 |
| 会议地点 | grc,Athens |
| 摘要 | The popularity of decentralized applications brings increasing on-chain audit concerns. Since on-chain accounts do not link to real-world identities, decentralized applications have been wildly used for illegal activities like money laundering. Decentralized identity (DID) is one of the most promising solutions to guarantee on-chain auditability in a privacy-preserving way. However, the existing DID systems suffer from two limitations, making them rarely adopted in on-chain decentralized applications. First, most previous systems only provide partial auditability, meaning that their regulators cannot trace users' real-world identities after users' malicious behaviors occur. Second, current solutions are usually isolated systems, causing a lack of interoperability with on-chain decentralized applications. To address the problems, we propose Didapper, a practical and auditable on-chain identity service with both privacy and auditability for decentralized applications. We introduce group signatures to provide anonymous and traceable credentials for on-chain users and decentralized applications. In order to meet the efficiency and flexibility requirements, we design credential structure and workflow mostly compatible with W3C standards (a DID recommendation that enables verifiable, decentralized digital identity), and realize credential verification service with updatable policies. We implement Didapper and evaluate it on Ethereum, and the results show that the performance of Didapper is acceptable in practice. |
| 关键词 | Auditability Blockchain Decentralized Application Decentralized Identity Group Signature |
| DOI | 10.1109/DAPPS57946.2023.00028 |
| URL | 查看来源 |
| 语种 | 英语English |
| Scopus入藏号 | 2-s2.0-85172887000 |
| 引用统计 | |
| 文献类型 | 会议论文 |
| 条目标识符 | https://repository.uic.edu.cn/handle/39GCC9TT/13471 |
| 专题 | 个人在本单位外知识产出 |
| 通讯作者 | Gao，Jianbo |
| 作者单位 | 1.Peking University,MoE,Key Laboratory of High Confidence Software Technologies,Beijing,China 2.School of Computer Science,Peking University,Beijing,China 3.Peking University,National Engineering Research Center for Software Engineering,Beijing,China |
| 推荐引用方式 GB/T 7714 | Xia，Libin,Zhang，Jiashuo,Zhang，Xihanet al. DIDAPPER: A Practical and Auditable On-Chain Identity Service for Decentralized Applications[C], 2023: 151-157. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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