Netinfo Security ›› 2025, Vol. 25 ›› Issue (5): 817-827.doi: 10.3969/j.issn.1671-1122.2025.05.013

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Lightweight Distributed Authentication Scheme Based on Trusted Digital Identity

ZHU Xiaoqiang1(), ZHANG Haowen2, LIN Yanzi2, LIU Jiqiang1   

  1. 1. School of Cyberspace Science and Technology, Beijing Jiaotong University, Beijing 100044, China
    2. School of Software, Beijing Jiaotong University, Beijing 100044, China
  • Received:2025-03-06 Online:2025-05-10 Published:2025-06-10

Abstract:

Trusted digital identity is a universal credential for real-life and online behavior. With the popularization and application of distributed systems, traditional digital identity management systems have security challenges such as single point failure, lack of interoperability, and privacy infringement. Therefore, it is very important to protect the user’s privacy in the process of trusted digital identity authentication while reducing the system’s resource overhead and improving the authentication efficiency. This paper proposed a lightweight distributed authentication scheme based on trusted digital identity for typical application scenarios of identity authentication. The scheme was based on a trusted digital identity, mapped into a decentralized identity, and combined with a verifiable credential for the verification of the trusted digital identity. Users can control their own identity based on real-person authentication, thereby realizing user-centric identity authentication. Security analysis and performance analysis show that the scheme in this paper has higher security and better performance.

Key words: identity authentication, blockchain, distributed digital identity, verifiable credential

CLC Number: