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Authorizing Large Language Model (LLM)-driven agents to dynamically invoke tools and access protected resources introduces significant security risks, and the risks grow dramatically as agents engage in multi-turn conversations and scale…

Artificial Intelligence · Computer Science 2026-05-05 Majed El Helou , Benjamin Ryder , Chiara Troiani , Jean Diaconu , Hervé Muyal , Marcelo Yannuzzi

Security requirements in distributed software systems are inherently dynamic. In the case of authorization policies, resources are meant to be accessed only by authorized parties, but the authorization to access a resource may be…

Logic in Computer Science · Computer Science 2016-02-12 Silvia Ghilezan , Svetlana Jakšić , Jovanka Pantović , Jorge A. Pérez , Hugo Torres Vieira

The rapid deployment of autonomous AI agents creates urgent challenges around authorization, accountability, and access control in digital spaces. New standards are needed to know whom AI agents act on behalf of and guide their use…

Computers and Society · Computer Science 2025-01-17 Tobin South , Samuele Marro , Thomas Hardjono , Robert Mahari , Cedric Deslandes Whitney , Dazza Greenwood , Alan Chan , Alex Pentland

Large Language Model (LLM)-based agent systems are increasingly deployed for complex real-world tasks but remain vulnerable to natural language-based attacks that exploit over-privileged tool use. This paper aims to understand and mitigate…

Cryptography and Security · Computer Science 2026-01-21 Zimo Ji , Daoyuan Wu , Wenyuan Jiang , Pingchuan Ma , Zongjie Li , Yudong Gao , Shuai Wang , Yingjiu Li

Large Language Model (LLM)-based agents increasingly interact, collaborate, and delegate tasks to one another autonomously with minimal human interaction. Industry guidelines for agentic system governance emphasize the need for users to…

Cryptography and Security · Computer Science 2025-09-01 Georgios Syros , Anshuman Suri , Jacob Ginesin , Cristina Nita-Rotaru , Alina Oprea

Multi-agent systems increasingly expose explicit workflow structure: agents, tools, tool-access rules, restrictions, and delegation paths. Existing evaluations rely largely on end-to-end task success, benchmark scores, final-response…

Software Engineering · Computer Science 2026-05-27 Nafiseh Kahani , Mojtaba Bagherzadeh

Large language models (LLMs) are increasingly used as tool-augmented agents for multi-step decision making, yet training robust tool-using agents remains challenging. Existing methods still require manual intervention, depend on…

As networks move toward the next-generation 6G, Intent-based Management (IbM) systems are increasingly adopted to simplify and automate network management by translating high-level intents into low-level configurations. Within these…

Cryptography and Security · Computer Science 2025-10-23 Loay Abdelrazek , Leyli Karaçay , Marin Orlic

Recent studies reveal gaps in delegating critical tasks to agentic AI that accesses websites on the user's behalf, primarily due to limited access control mechanisms on websites designed for agentic AI. In response, we propose a design of…

Artificial Intelligence · Computer Science 2026-03-20 Sunyoung Kim , Hokeun Kim

Along with the classical problem of managing multiple identities, actions, devices, APIs etc. in different businesses, there has been an escalating need for having the capability of flexible attribute based access control~(ABAC) mechanisms.…

Cryptography and Security · Computer Science 2018-04-18 Baiyu Liu , Abhinav Palia , Shan-Ho Yang

Securing AI agents powered by Large Language Models (LLMs) represents one of the most critical challenges in AI security today. Unlike traditional software, AI agents leverage LLMs as their "brain" to autonomously perform actions via…

Cryptography and Security · Computer Science 2025-11-25 Itay Hazan , Yael Mathov , Guy Shtar , Ron Bitton , Itsik Mantin

Controlled sharing is fundamental to distributed systems. We consider a capability-based distributed authorization system where a client receives capabilities (access tokens) from an authorization server to access the resources of resource…

Cryptography and Security · Computer Science 2022-11-10 Adrian Shuai Li , Reihaneh Safavi-Naini , Philip W. L. Fong

Controlling resource usage in distributed systems is a challenging task given the dynamics involved in access granting. Consider, for instance, the setting of floating licenses where access can be granted if the request originates in a…

Programming Languages · Computer Science 2018-02-19 Jovanka Pantovic , Ivan Prokic , Hugo Torres Vieira

In this report, we explore the ability of language model agents to acquire resources, create copies of themselves, and adapt to novel challenges they encounter in the wild. We refer to this cluster of capabilities as "autonomous replication…

Effective attribution of Advanced Persistent Threats (APTs) increasingly hinges on the ability to correlate behavioral patterns and reason over complex, varied threat intelligence artifacts. We present AURA (Attribution Using…

Cryptography and Security · Computer Science 2025-06-13 Nanda Rani , Sandeep Kumar Shukla

Constraints such as separation-of-duty are widely used to specify requirements that supplement basic authorization policies. However, the existence of constraints (and authorization policies) may mean that a user is unable to fulfill…

Cryptography and Security · Computer Science 2016-12-20 Pierre Bergé , Jason Crampton , Gregory Gutin , Rémi Watrigant

The proliferation of autonomous AI agents within enterprise environments introduces a critical security challenge: managing access control for emergent, novel tasks for which no predefined policies exist. This paper introduces an advanced…

Cryptography and Security · Computer Science 2025-10-14 Charles Fleming , Ashish Kundu , Ramana Kompella

Manufacturing industries are facing increasing product variability due to the growing demand for personalized products. Under these conditions, ensuring safety becomes challenging as frequent reconfigurations can lead to unintended…

Multiagent Systems · Computer Science 2026-04-21 Jonghan Lim , Mostafa Tavakkoli Anbarani , Rômulo Meira-Góes , Ilya Kovalenko

Despite extensive safety alignment, Large Language Models (LLMs) remain vulnerable to jailbreak attacks. However, existing methods generally lack the capability for continuous learning and self-evolution from interactions, limiting the…

Cryptography and Security · Computer Science 2026-04-21 Xu Liu , Yan Chen , Kan Ling , Yichi Zhu , Hengrun Zhang , Guisheng Fan , Huiqun Yu

One of the most widespread framework for the management of access-control policies is Administrative Role Based Access Control (ARBAC). Several automated analysis techniques have been proposed to help maintaining desirable security…

Cryptography and Security · Computer Science 2010-12-30 A. Armando , S. Ranise
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