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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

Proliferation of systems that generate enormous amounts of data and operate in real time has led researchers to rethink the current organization of the cloud. Many proposed solutions consist of a number of small data centers in the vicinity…

Cryptography and Security · Computer Science 2024-10-29 Tamara Ranković , Miloš Simić , Milan Stojkov , Goran Sladić

Administrative Role Based Access Control (ARBAC) models specify how to manage user-role assignments (URA), permission-role assignments (PRA), and role-role assignments (RRA). Many approaches have been proposed in the literature for URA,…

Cryptography and Security · Computer Science 2018-12-27 Jiwan Ninglekhu , Ram Krishnan

Attribute-based access control (ABAC) promises a powerful way of formalizing access policies in support of a wide range of access management scenarios. Efficient implementation of ABAC in its general form is still a challenge, especially…

Cryptography and Security · Computer Science 2019-09-24 Hadi Ahmadi , Derek Small

With the rapid advances in computing and information technologies, traditional access control models have become inadequate in terms of capturing fine-grained, and expressive security requirements of newly emerging applications. An…

Cryptography and Security · Computer Science 2021-02-02 Leila Karimi , Maryam Aldairi , James Joshi , Mai Abdelhakim

A common trait of current access control approaches is the challenging need to engineer abstract and intuitive access control models. This entails designing access control information in the form of roles (RBAC), attributes (ABAC), or…

Cryptography and Security · Computer Science 2022-03-30 Mohammad Nur Nobi , Ram Krishnan , Yufei Huang , Mehrnoosh Shakarami , Ravi Sandhu

Attribute-Based Access Control (ABAC) enables highly expressive and flexible access decisions by considering a wide range of contextual attributes. ABAC policies use logical expressions that combine these attributes, allowing for precise…

Cryptography and Security · Computer Science 2025-05-06 Thang Bui , Elliot Shabram , Anthony Matricia

Attribute-Based Access Control (ABAC) and Relationship-based access control (ReBAC) provide a high level of expressiveness and flexibility that promote security and information sharing, by allowing policies to be expressed in terms of…

Cryptography and Security · Computer Science 2020-11-24 Thang Bui , Scott D. Stoller

Attribute-Based Access Control (ABAC) provides expressiveness and flexibility, making it a compelling model for enforcing fine-grained access control policies. To facilitate the transition to ABAC, extensive research has been conducted to…

Cryptography and Security · Computer Science 2025-05-14 Thang Bui , Anthony Matricia , Emily Contreras , Ryan Mauvais , Luis Medina , Israel Serrano

Basic role based access control [RBAC] provides a mechanism for segregating access privileges based upon a user's hierarchical roles within an organization. This model doesn't scale well when there is tight integration of multiple…

Cryptography and Security · Computer Science 2007-05-23 Jonathan K. Adams , Basheer N. Bristow

Attribute-based access control (ABAC) provides a high level of flexibility that promotes security and information sharing. ABAC policy mining algorithms have potential to significantly reduce the cost of migration to ABAC, by partially…

Cryptography and Security · Computer Science 2014-08-08 Zhongyuan Xu , Scott D. Stoller

Role-Based Access Control (RBAC) is a popular authorization model used to manage data-access constraints in a wide range of systems. RBAC usually defines the static view on the access rights. However, to ensure dependability of a system, it…

Software Engineering · Computer Science 2018-05-16 Inna Vistbakka , Elena Troubitsyna

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

Access control models have been developed to control authorized access to sensitive resources. This control of access is important as there is now a need for collaborative resource sharing between multiple organizations over open…

Cryptography and Security · Computer Science 2021-08-20 M Ridwanur Rahman , Ahmad Salehi Shahraki , Carsten Rudolph

On demand of efficient reachability analysis due to the inevitable complexity of large-scale biological models, this paper is dedicated to a novel approach: PermReach, for reachability problem of our new framework, Asynchronous Binary…

Formal Languages and Automata Theory · Computer Science 2018-04-23 Xinwei Chai , Morgan Magnin , Olivier Roux

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

The rapid adoption of multi-cloud environments has amplified risks associated with privileged access mismanagement. Traditional Privileged Access Management (PAM) solutions based on Attribute-Based Access Control (ABAC) exhibit cubic O(n^3)…

Cryptography and Security · Computer Science 2025-11-21 Sai Sitharaman , Hassan Karim , Deepti Gupta , Mudit Tyagi

As digital healthcare evolves, the security of electronic health records (EHR) becomes increasingly crucial. This study presents the GPT-Onto-CAABAC framework, integrating Generative Pretrained Transformer (GPT), medical-legal ontologies…

Computers and Society · Computer Science 2024-03-14 Raza Nowrozy , Khandakar Ahmed , Hua Wang

Temporal role-based access control (TRBAC) extends role-based access control to limit the times at which roles are enabled. This paper presents a new algorithm for mining high-quality TRBAC policies from timed ACLs (i.e., ACLs with time…

Cryptography and Security · Computer Science 2017-10-17 Scott D. Stoller , Thang Bui

This paper deals with the CREP (Configuration REachability Problem) for non-uniform cellular automata (CAs). The cells of non-uniform CAs, we have considered here, can use different Wolfram's rules to generate their next states. We report…

Computational Complexity · Computer Science 2019-01-25 Sumit Adak , Sukanya Mukherjee , Sukanta Das
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