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The Transmission Control Protocol (TCP) relies on a state machine and deterministic arithmetic to ensure reliable connections. However, traditional protocol logic driven by hard-coded state machines struggles to meet the demands of…

Networking and Internet Architecture · Computer Science 2025-12-02 Yule Han , Kezhi Wang , Kun Yang

AI agents, predominantly powered by large language models (LLMs), are vulnerable to indirect prompt injection, in which malicious instructions embedded in untrusted data can trigger dangerous agent actions. This position paper discusses our…

Cryptography and Security · Computer Science 2026-04-01 Chong Xiang , Drew Zagieboylo , Shaona Ghosh , Sanjay Kariyappa , Kai Greshake , Hanshen Xiao , Chaowei Xiao , G. Edward Suh

Large Language Model (LLM) agents are increasingly used to automate complex workflows, but integrating untrusted external data with privileged execution exposes them to severe security risks, particularly direct and indirect prompt…

Cryptography and Security · Computer Science 2026-04-28 Zonghao Ying , Haozheng Wang , Jiangfan Liu , Quanchen Zou , Aishan Liu , Jian Yang , Yaodong Yang , Xianglong Liu

The software supply chain attacks are becoming more and more focused on trusted development and delivery procedures, so the conventional post-build integrity mechanisms cannot be used anymore. The available frameworks like SLSA, SBOM and in…

Cryptography and Security · Computer Science 2025-12-30 Toqeer Ali Syed , Mohammad Riyaz Belgaum , Salman Jan , Asadullah Abdullah Khan , Saad Said Alqahtani

Large Language Models (LLMs) have been increasingly integrated into computer-use agents, which can autonomously operate tools on a user's computer to accomplish complex tasks. However, due to the inherently unstable and unpredictable nature…

Cryptography and Security · Computer Science 2025-09-10 Haitao Hu , Peng Chen , Yanpeng Zhao , Yuqi Chen

AI agents deployed on decentralized infrastructures are beginning to exhibit properties that extend beyond autonomy toward what we describe as agentic sovereignty-the capacity of an operational agent to persist, act, and control resources…

Computers and Society · Computer Science 2026-02-17 Botao Amber Hu , Helena Rong

The Model Context Protocol (MCP) replaces static, developer-controlled API integrations with more dynamic, user-driven agent systems, which also introduces new security risks. As MCP adoption grows across community servers and major…

Cryptography and Security · Computer Science 2025-11-27 Herman Errico , Jiquan Ngiam , Shanita Sojan

The absence of a fully decentralized, verifiable, and privacy-preserving communication protocol for autonomous agents remains a core challenge in decentralized computing. Existing systems often rely on centralized intermediaries, which…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-11-18 Yuanjie Liu , Wenpeng Xing , Ye Zhou , Gaowei Chang , Changting Lin , Meng Han

The security discussion around agentic AI focuses heavily on prompt injection. This paper argues that multi-agent systems also create a distinct authorization problem: maintaining authorization invariants as non-human principals retrieve…

Artificial Intelligence · Computer Science 2026-05-08 Krti Tallam

LLM-based agents have recently attracted significant attention due to their ability to autonomously invoke relevant tools to accomplish complex tasks. However, recent studies have shown that these agents face severe security risks, which…

Cryptography and Security · Computer Science 2026-05-28 Jiaqi Luo , Songyang Peng , Jiarun Dai , Zhile Chen , Zhuoxiang Shen , Geng Hong , Xudong Pan , Yuan Zhang , Min Yang

The rapid advancement of Large Language Models (LLMs) is catalyzing a shift towards autonomous AI Agents capable of executing complex, multi-step tasks. However, these agents remain brittle when faced with real-world exceptions, making…

Local Differential Privacy (LDP) offers strong privacy protection, especially in settings in which the server collecting the data is untrusted. However, designing LDP mechanisms that achieve an optimal trade-off between privacy, utility and…

Cryptography and Security · Computer Science 2026-03-20 Héber H. Arcolezi , Sébastien Gambs

Security threats like prompt injection attacks pose significant risks to applications that integrate Large Language Models (LLMs), potentially leading to unauthorized actions such as API misuse. Unlike previous approaches that aim to detect…

Cryptography and Security · Computer Science 2025-04-01 Shih-Han Chan

Security Policies (SP) constitute the core of communication networks protection infrastructures. It offers a set of rules allowing differentiating between legitimate actions and prohibited ones and consequently, associates each entity in…

Cryptography and Security · Computer Science 2013-08-01 Ryma Abassi , Sihem Guemara El Fatmi

Despite advances in the use of large language models (LLMs) in downstream tasks, their ability to memorize information has raised privacy concerns. Therefore, protecting personally identifiable information (PII) during LLM training remains…

Machine Learning · Computer Science 2025-12-02 Stella Etuk , Ashraf Matrawy

Authorizing Large Language Model driven agents to dynamically invoke tools and access protected resources introduces significant risks, since current methods for delegating authorization grant overly broad permissions and give access to…

Artificial Intelligence · Computer Science 2025-10-31 Majed El Helou , Chiara Troiani , Benjamin Ryder , Jean Diaconu , Hervé Muyal , Marcelo Yannuzzi

Agentic systems increasingly run user-authored orchestration code that invokes tools, spawns subtasks, and delegates work across machines and clouds. Although this high agency is productive, it creates a security problem: identity,…

Cryptography and Security · Computer Science 2026-05-28 Qiancheng Wu , Wenhui Zhang , Gan Fang , Sheng Mao , Biao Gao , David Levitsky , Shawna Murphy Butterworth , Rob Cameron

This position paper argues that the field of LLM agents requires a unified, telecom-inspired communication protocol to ensure safety, interoperability, and scalability, especially within the context of Next Generation (NextG) networks.…

Networking and Internet Architecture · Computer Science 2025-10-17 Xin Li , Mengbing Liu , Chau Yuen

The rapid advancements in wireless technology have significantly increased the demand for communication resources, leading to the development of Spectrum Access Systems (SAS). However, network regulations require disclosing sensitive user…

Cryptography and Security · Computer Science 2025-11-14 Saleh Darzi , Attila A. Yavuz

As AI agents transition from research prototypes to enterprise production systems, the tool interfaces they consume remain rooted in human-oriented CRUD paradigms. This paper identifies five fundamental architectural mismatches between…

Artificial Intelligence · Computer Science 2026-05-12 Kai Pan