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In this paper we present the design of Name-based Access Control (NAC) scheme, which supports data confidentiality and access control in Named Data Networking (NDN) architecture by encrypting content at the time of production, and by…

Networking and Internet Architecture · Computer Science 2021-06-15 Zhiyi Zhang , Yingdi Yu , Sanjeev Kaushik Ramani , Alex Afanasyev , Lixia Zhang

The rapid expansion of cloud infrastructures and distributed identity systems has significantly increased the complexity and attack surface of modern enterprises. Traditional rule based or signature driven detection systems are often…

Cryptography and Security · Computer Science 2025-12-12 Venkata Tanuja Madireddy

Blockchain-based Attribute-Based Access Control (BC-ABAC) offers a decentralized paradigm for secure data governance but faces two inherent challenges: the transparency of blockchain ledgers threatens user privacy by enabling…

Cryptography and Security · Computer Science 2026-05-26 Jie Zhang , Xiaohong Li , Mengke Zhang , Ruitao Feng , Shanshan Xu , Zhe Hou , Guangdong Bai

Graph databases have grown in popularity in recent years as they are able to efficiently store and query complex relationships between data. Incidentally, navigation data and road networks can be processed, sampled or modified efficiently…

Databases · Computer Science 2023-06-13 Karin Festl , Patrick Promitzer , Daniel Watzenig , Huilin Yin

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

The prevalence of Internet of Things (IoTs) allows heterogeneous embedded smart devices to collaboratively provide intelligent services with or without human intervention. While leveraging the large-scale IoT-based applications like Smart…

Networking and Internet Architecture · Computer Science 2018-05-03 Ronghua Xu , Yu Chen , Erik Blasch , Genshe Chen

Critical energy infrastructures increasingly rely on information and communication technology for monitoring and control, which leads to new challenges with regard to cybersecurity. Recent advancements in this domain, including…

Cryptography and Security · Computer Science 2026-03-25 Moritz Gstür , Gustav Keppler , Mohammed Ramadan , Ghada Elbez , Veit Hagenmeyer

Role-Based Access Control (RBAC) struggles to adapt to dynamic enterprise environments with documents that contain information that cannot be disclosed to specific user groups. As these documents are used by LLM-driven systems (e.g., in…

Cryptography and Security · Computer Science 2025-12-24 Michele Lorenzo , Idilio Drago , Dario Salvadori , Fabio Romolo Vayr

In recent years, Attribute-Based Access Control (ABAC) has become quite popular and effective for enforcing access control in dynamic and collaborative environments. Implementation of ABAC requires the creation of a set of attribute-based…

Cryptography and Security · Computer Science 2021-11-16 Varun Gumma , Barsha Mitra , Soumyadeep Dey , Pratik Shashikantbhai Patel , Sourabh Suman , Saptarshi Das

Risk assessment plays a crucial role in ensuring the security and resilience of modern computer systems. Existing methods for conducting risk assessments often suffer from tedious and time-consuming processes, making it challenging to…

Cryptography and Security · Computer Science 2023-07-27 Simon Unger , Ektor Arzoglou , Markus Heinrich , Dirk Scheuermann , Stefan Katzenbeisser

Access control systems are widely used means for the protection of computing systems. They are defined in terms of access control policies regulating the accesses to system resources. In this paper, we introduce a formally-defined,…

Software Engineering · Computer Science 2017-01-02 Andrea Margheri , Massimiliano Masi , Rosario Pugliese , Francesco Tiezzi

Administrative Role Based Access Control (ARBAC) models deal with how to manage user-role assignments (URA), permission-role assignments (PRA), and role-role assignments (RRA). A wide variety of approaches has been proposed in the…

Cryptography and Security · Computer Science 2017-07-04 Jiwan Ninglekhu , Ram Krishnan

The problems which are important for the effective functioning of an access control policy in a large information system (LIS) are selected. The general concept of a local optimization of a role-based access control (RBAC) model is…

Cryptography and Security · Computer Science 2018-12-27 N. F. Bogachenko

Business Architecture (BA) plays a significant role in helping organizations understand enterprise structures and processes, and align them with strategic objectives. However, traditional BAs are represented in fixed structure with static…

Software Engineering · Computer Science 2018-06-11 Lei Huang , Guangjie Ren , Shun Jiang , Raphael Arar , Eric Young Liu

We present a graph-based approach for the data management tasks and the efficient operation of a system for session-based next-item recommendations. The proposed method can collect data continuously and incrementally from an ecommerce web…

Attack graphs are a powerful tool for security risk assessment by analysing network vulnerabilities and the paths attackers can use to compromise network resources. The uncertainty about the attacker's behaviour makes Bayesian networks…

Cryptography and Security · Computer Science 2016-11-07 Luis Muñoz-González , Daniele Sgandurra , Martín Barrère , Emil Lupu

Graph-based classification methods are widely used for security and privacy analytics. Roughly speaking, graph-based classification methods include collective classification and graph neural network. Evading a graph-based classification…

Cryptography and Security · Computer Science 2019-08-14 Binghui Wang , Neil Zhenqiang Gong

Inspired by the access control models of social network systems, Relationship-Based Access Control (ReBAC) was recently proposed as a general-purpose access control paradigm for application domains in which authorization must take into…

Cryptography and Security · Computer Science 2015-03-23 Syed Zain Rizvi , Philip W. L. Fong , Jason Crampton , James Sellwood

Tackling unfairness in graph learning models is a challenging task, as the unfairness issues on graphs involve both attributes and topological structures. Existing work on fair graph learning simply assumes that attributes of all nodes are…

Machine Learning · Computer Science 2023-09-01 Dongliang Guo , Zhixuan Chu , Sheng Li

Graph models are helpful means of analyzing computer networks as well as complex system architectures for security. In this paper we evaluate the current state of research for representing and analysing cyber-attack using graph models, i.e.…

Cryptography and Security · Computer Science 2023-11-17 Jasmin Wachter