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Fortifying the Agentic Web: A Unified Zero-Trust Architecture Against Logic-layer Threats

Created by
  • Haebom

Author

Ken Huang, Yasir Mehmood, Hammad Atta, Jerry Huang, Muhammad Zeeshan Baig, Sree Bhargavi Balija

Outline

This paper presents an integrated security architecture that strengthens the agent web through a zero-trust IAM framework based on rich and verifiable agent identities using Decentralized Identifiers (DIDs) and Verifiable Credentials (VCs). Security is achieved through a multi-layered trust structure that includes Trust Adaptive Runtime Environments (TAREs), causal chain auditing, and proof-of-action, along with discovery capabilities managed by a protocol-agnostic Agent Name Service (ANS). By explicitly linking LPCI threats to these enhanced architectural defense mechanisms within a formal security model, we propose a comprehensive and forward-looking blueprint for a secure, resilient, and trustworthy agent ecosystem. Formal analysis demonstrates that the proposed architecture provides provably secure protection against LPCI attacks with limited success rates.

Takeaways, Limitations

Takeaways:
A plan to strengthen the security of Agent Web through an integrated security architecture based on the Zero Trust IAM framework.
Enhance trust through rich, verifiable agent IDs leveraging DIDs and VCs.
Introducing innovative security mechanisms such as TARE, causal chain auditing, and proof-of-action.
Provable security guarantees against LPCI attacks.
Providing a blueprint for building a secure, resilient, and reliable agent ecosystem.
Limitations:
Lack of details on actual implementation and performance evaluation of the proposed architecture.
Lack of vulnerability analysis for other types of attacks besides LPCI attacks.
Further review of ANS's scalability and stability is needed.
Lack of clear explanation of the scope and limitations of formal analysis.
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