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Autonomous agents represent an inevitable evolution of the internet. Current agent frameworks do not embed a standard protocol for agent-to-agent interaction, leaving existing agents isolated from their peers. As intellectual property is…

Artificial Intelligence · Computer Science 2025-01-14 Andrea Muttoni , Jason Zhao

The emergence of the Internet of Agents (IoA) introduces critical challenges for communication privacy in sensitive, high-stakes domains. While standard Agent-to-Agent (A2A) protocols secure message content, they are not designed to protect…

Cryptography and Security · Computer Science 2025-11-25 Kaibo Huang , Yukun Wei , Wansheng Wu , Tianhua Zhang , Zhongliang Yang , Linna Zhou

As the "agentic web" takes shape-billions of AI agents (often LLM-powered) autonomously transacting and collaborating-trust shifts from human oversight to protocol design. In 2025, several inter-agent protocols crystallized this shift,…

Human-Computer Interaction · Computer Science 2025-11-06 Botao 'Amber' Hu , Helena Rong

The Model Context Protocol (MCP) enables large language models to invoke external tools through natural-language descriptions, forming the foundation of many AI agent applications. However, MCP does not enforce consistency between…

Cryptography and Security · Computer Science 2026-02-04 Zhihao Li , Boyang Ma , Xuelong Dai , Minghui Xu , Yue Zhang , Biwei Yan , Kun Li

This research article presents a novel architecture to empower multi-agent economies by addressing two critical limitations of the emerging Agent2Agent (A2A) communication protocol: decentralized agent discoverability and agent-to-agent…

Multiagent Systems · Computer Science 2026-05-06 Awid Vaziry , Sandro Rodriguez Garzon , Axel Küpper

Current blockchain Layer 2 solutions, including Optimism, Arbitrum, zkSync, and their derivatives, optimize for human-initiated financial transactions. Autonomous AI agents instead generate high-frequency, semantically rich service…

Multiagent Systems · Computer Science 2026-04-24 Anbang Ruan , Xing Zhang

The Model Context Protocol (MCP) is a recently proposed interoperability standard that unifies how AI agents connect with external tools and data sources. By defining a set of common client-server message exchange clauses, MCP replaces…

Cryptography and Security · Computer Science 2026-03-12 Nanzi Yang , Weiheng Bai , Kangjie Lu

The Model Context Protocol (MCP) is an open and standardized interface that enables large language models (LLMs) to interact with external tools and services, and is increasingly adopted by AI agents. However, the security of MCP-based…

Cryptography and Security · Computer Science 2026-03-10 Yuhang Huang , Boyang Ma , Biwei Yan , Xuelong Dai , Yechao Zhang , Minghui Xu , Kaidi Xu , Yue Zhang

Multi-agent systems represent a significant advancement in artificial intelligence, enabling complex problem-solving through coordinated specialized agents. However, these systems face fundamental challenges in context management,…

Multiagent Systems · Computer Science 2025-05-01 Naveen Krishnan

The rise of Multi-Agent Systems (MAS) in Artificial Intelligence (AI), especially integrated with Large Language Models (LLMs), has greatly facilitated the resolution of complex tasks. However, current systems are still facing challenges of…

Information Retrieval · Computer Science 2025-09-23 Callie C. Liao , Duoduo Liao , Sai Surya Gadiraju

As autonomous AI agents increasingly populate the Internet, a novel security challenge arises: "Is this entity an AI agent?" It is a new entity-type verification problem with no established solution. We formalize the problem through a…

Cryptography and Security · Computer Science 2026-03-10 Zuyao Xu , Xiang Li , Fubin Wu , Yuqi Qiu , Lu Sun , FaSheng Miao

As autonomous AI agents increasingly call other agents to complete tasks on behalf of a human principal, a structural accountability gap has emerged: the calling agent accepts the terms of service of the callee without any protocol-level…

Cryptography and Security · Computer Science 2026-04-21 Ravi Kiran Kadaboina

Agent communication remains a foundational problem in multi-agent systems: protocols such as FIPA-ACL guarantee semantic richness but are intractable for constrained environments, while lightweight IoT protocols achieve efficiency at the…

Multiagent Systems · Computer Science 2026-05-26 Arnab Mallick , Indraveni Chebolu

This paper introduces Agentic-AI Healthcare, a privacy-aware, multilingual, and explainable research prototype developed as a single-investigator project. The system leverages the emerging Model Context Protocol (MCP) to orchestrate…

Cryptography and Security · Computer Science 2025-10-06 Mohammed A. Shehab

With the development of large models and autonomous decision-making AI, agents are rapidly becoming the new entities of the internet, following mobile apps. However, existing internet infrastructure is primarily designed for human…

Networking and Internet Architecture · Computer Science 2025-08-04 Gaowei Chang , Eidan Lin , Chengxuan Yuan , Rizhao Cai , Binbin Chen , Xuan Xie , Yin Zhang

OpenID Connect for Agents (OIDC-A) 1.0 is an extension to OpenID Connect Core 1.0 that provides a comprehensive framework for representing, authenticating, and authorizing LLM-based agents within the OAuth 2.0 ecosystem. As autonomous AI…

Networking and Internet Architecture · Computer Science 2025-10-01 Subramanya Nagabhushanaradhya

Traditional Identity and Access Management (IAM) systems, primarily designed for human users or static machine identities via protocols such as OAuth, OpenID Connect (OIDC), and SAML, prove fundamentally inadequate for the dynamic,…

Cryptography and Security · Computer Science 2025-05-30 Ken Huang , Vineeth Sai Narajala , John Yeoh , Jason Ross , Ramesh Raskar , Youssef Harkati , Jerry Huang , Idan Habler , Chris Hughes

Artificial Intelligence (AI) will play an essential role in 6G. It will fundamentally reshape the network architecture itself and drive major changes in the design of network entities, interfaces, and procedures. The adoption of agentic AI…

Networking and Internet Architecture · Computer Science 2026-05-05 Purna Sai Garigipati , Onur Ayan , Kishor Chandra Joshi , Xueli An

Autonomous AI agents now operate across cloud, enterprise, and decentralized domains, creating demand for registry infrastructures that enable trustworthy discovery, capability negotiation, and identity assurance. We analyze five prominent…

Large Language Model (LLM) agents face security vulnerabilities spanning AI-specific and traditional software domains, yet current research addresses these separately. This study bridges this gap through comparative evaluation of Function…

Cryptography and Security · Computer Science 2025-07-10 Tarek Gasmi , Ramzi Guesmi , Ines Belhadj , Jihene Bennaceur