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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. This architecture is based on rich, verifiable agent identities using Decentralized Identifiers (DIDs) and Verifiable Credentials (VCs), with discovery managed by a protocol-agnostic Agent Name Service (ANS). Security is enabled by an innovative multi-layered trust structure that includes Trust Adaptive Runtime Environments (TAREs), causal chain auditing, and proof-of-action. 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:
Enhanced agent web security by presenting an integrated security architecture based on the Zero-Trust IAM framework.
Powerful agent ID management and verification using DID and VC.
Introducing innovative security mechanisms such as TARE, causal chain auditing, and proof-of-action.
Providing provable security against LPCI attacks.
A blueprint for building a secure, resilient, and reliable agent ecosystem.
Limitations:
The specific details and limitations of the formal analysis presented in the paper are not explicitly presented.
Lack of verification of actual implementation and application.
Lack of consideration of ANS's scalability and performance.
A detailed description of the specific implementation and performance of TARE, causal chain auditing, proof of action, etc. is needed.
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