论文标题

襟翼 - 基于属性的访问控制策略的联合学习框架

FLAP -- A Federated Learning Framework for Attribute-based Access Control Policies

论文作者

Jabal, Amani Abu, Bertino, Elisa, Lobo, Jorge, Verma, Dinesh, Calo, Seraphin, Russo, Alessandra

论文摘要

传感器,物联网和机器人技术等领域的技术进步,启用了新的协作应用程序(例如自动设备)。此类协作的主要要求是拥有一个安全的系统,该系统可以提供信息共享和信息流保护。基于策略的管理系统是安全选择性共享受保护资源的关键机制。但是,这种协作环境的各方的政策不能静止,因为它们必须适应不同的情况和情况。协作应用程序的一个优点是,协作中的每个方都可以利用其他方知识来学习或增强自己的政策。我们将这种学习机制称为政策转移。政策转让框架的设计面临着挑战,包括政策冲突和隐私问题。政策冲突通常是由于当事方的义务差异而引起的,而由于敏感数据的数据共享约束,因此隐私问题导致了隐私问题。因此,政策转移框架应该能够通过考虑最少的数据共享和支持政策适应以解决冲突来应对此类挑战。在本文中,我们提出了一个旨在应对此类挑战的框架。我们介绍了基于属性的策略的政策转移问题的正式定义。然后,我们介绍了由三个顺序步骤组成的转移方法。最后,我们报告了实验结果。

Technology advances in areas such as sensors, IoT, and robotics, enable new collaborative applications (e.g., autonomous devices). A primary requirement for such collaborations is to have a secure system which enables information sharing and information flow protection. Policy-based management system is a key mechanism for secure selective sharing of protected resources. However, policies in each party of such a collaborative environment cannot be static as they have to adapt to different contexts and situations. One advantage of collaborative applications is that each party in the collaboration can take advantage of knowledge of the other parties for learning or enhancing its own policies. We refer to this learning mechanism as policy transfer. The design of a policy transfer framework has challenges, including policy conflicts and privacy issues. Policy conflicts typically arise because of differences in the obligations of the parties, whereas privacy issues result because of data sharing constraints for sensitive data. Hence, the policy transfer framework should be able to tackle such challenges by considering minimal sharing of data and support policy adaptation to address conflict. In the paper we propose a framework that aims at addressing such challenges. We introduce a formal definition of the policy transfer problem for attribute-based policies. We then introduce the transfer methodology that consists of three sequential steps. Finally we report experimental results.

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