{"title":"Unlinkable and Decentralized Credential Management for Agentic AI","authors":"Qi Liu;Peng Jiang;Jun Zhu;Shaolong Tang;Wei Wang;Liehuang Zhu","doi":"10.1109/TNSE.2026.3695095","DOIUrl":null,"url":null,"abstract":"The evolution toward agentic AI is transforming edge devices from passive sensors into autonomous agents capable of collaborative decision-making. However, the open interaction among these agents exposes the system to malicious intrusions, making robust authentication essential to validate legitimate agents. Traditional authentication mechanisms still suffer from sensitive information leakage due to the potential exposure of agents' real-time locations and session linkability. Furthermore, previous privacy-preserving techniques often employ a centralized manager to prevent information leakage, whose compromise breaks the security of the whole system. In this paper, we propose B-CM, a blockchain-based credential management mechanism for agentic AI. B-CM augments traditional authentication by integrating anonymous credentials with blockchain technology to enable unlinkable and auditable agent authentication in a decentralized manner. To optimize efficiency, we leverage off-chain computation performed by edge servers and fast on-chain verification, accompanied by credential aggregation. We implement B-CM over Hyperledger Fabric to evaluate its performance. Experimental results show that the off-chain computation remains highly efficient, requiring only 8.35 s for distributed key generation and 9.7 ms for credential issuance, while the on-chain computational overhead is nearly negligible.","PeriodicalId":54229,"journal":{"name":"IEEE Transactions on Network Science and Engineering","volume":"13 ","pages":"9379-9393"},"PeriodicalIF":7.3000,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Network Science and Engineering","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/11526983/","RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/3/19 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"ENGINEERING, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The evolution toward agentic AI is transforming edge devices from passive sensors into autonomous agents capable of collaborative decision-making. However, the open interaction among these agents exposes the system to malicious intrusions, making robust authentication essential to validate legitimate agents. Traditional authentication mechanisms still suffer from sensitive information leakage due to the potential exposure of agents' real-time locations and session linkability. Furthermore, previous privacy-preserving techniques often employ a centralized manager to prevent information leakage, whose compromise breaks the security of the whole system. In this paper, we propose B-CM, a blockchain-based credential management mechanism for agentic AI. B-CM augments traditional authentication by integrating anonymous credentials with blockchain technology to enable unlinkable and auditable agent authentication in a decentralized manner. To optimize efficiency, we leverage off-chain computation performed by edge servers and fast on-chain verification, accompanied by credential aggregation. We implement B-CM over Hyperledger Fabric to evaluate its performance. Experimental results show that the off-chain computation remains highly efficient, requiring only 8.35 s for distributed key generation and 9.7 ms for credential issuance, while the on-chain computational overhead is nearly negligible.
期刊介绍:
The proposed journal, called the IEEE Transactions on Network Science and Engineering (TNSE), is committed to timely publishing of peer-reviewed technical articles that deal with the theory and applications of network science and the interconnections among the elements in a system that form a network. In particular, the IEEE Transactions on Network Science and Engineering publishes articles on understanding, prediction, and control of structures and behaviors of networks at the fundamental level. The types of networks covered include physical or engineered networks, information networks, biological networks, semantic networks, economic networks, social networks, and ecological networks. Aimed at discovering common principles that govern network structures, network functionalities and behaviors of networks, the journal seeks articles on understanding, prediction, and control of structures and behaviors of networks. Another trans-disciplinary focus of the IEEE Transactions on Network Science and Engineering is the interactions between and co-evolution of different genres of networks.