The Experts below are selected from a list of 56295 Experts worldwide ranked by ideXlab platform

Khaled Ghedira - One of the best experts on this subject based on the ideXlab platform.

  • CRiSIS - MA-MOrBAC: A Distributed Access Control Model Based on Mobile Agent for Multi-organizational, Collaborative and Heterogeneous Systems
    Lecture Notes in Computer Science, 2018
    Co-Authors: Zeineb Ben Yahya, Farah Barika Ktata, Khaled Ghedira
    Abstract:

    Facing the current evolution of networks infrastructure and the expansion of the information system in organizations and businesses, protecting data and resources against unauthorized Access and unauthorized disclosure, is an important requirement of any information management system. In this context, diverse security issues are amplified. Particularly, Access Control seems of main importance because it ensures diverse security services, such as, authentication, identification, confidentiality and integrity. Several works are devoted for designing Access Control models. In this paper, we work to improve Multi-OrBAC model by introducing a new Distributed Access Control model based on Mobile Agent.

  • WI - Multi-organizational Access Control Model Based on Mobile Agents for Cloud Computing
    2016 IEEE WIC ACM International Conference on Web Intelligence (WI), 2016
    Co-Authors: Zeineb Ben Yahya, Farah Barika Ktata, Khaled Ghedira
    Abstract:

    The development of new digital technologies is swiftly rising. Thus, the cloud computing is grabbing-attention of information technology communities. In this context, diverse security issues are amplified. Particularly, Access Control seems of main importance because it ensures diverse security services, such as, authentication, identification, confidentiality and integrity. Several works are devoted for designing Access Control models. In this paper, we are particularly interested on Distributed Access Control approaches. According to identified drawbacks of Multi-OrBAC model, we introduce a new Distributed Access Control model for cloud computing based on Mobile Agent.

Sandro Etalle - One of the best experts on this subject based on the ideXlab platform.

  • CSE (3) - Reputation-Based Ontology Alignment for Autonomy and Interoperability in Distributed Access Control
    2009 International Conference on Computational Science and Engineering, 2009
    Co-Authors: Daniel Trivellato, Fred Spiessens, Nicola Zannone, Sandro Etalle
    Abstract:

    Vocabulary alignment is a main challenge in DistributedAccess Control as peers should understand each other’spolicies unambiguously. Ontologies enable mutual understanding among peers by providing a precise semantics to concepts and relationships in a domain. However, due to the Distributed nature of ontology development, ontology alignment is required to allow peers to make informed Access Control decisions. The alignment should be flexible and accurate to not undermine the autonomy and reliability of peers. This paper addresses the problem of ontology alignment in Distributed Access Control by combiningontology-based trust management with a reputation system.

  • POLICY - POLIPO: Policies & OntoLogies for Interoperability, Portability, and autOnomy
    2009 IEEE International Symposium on Policies for Distributed Systems and Networks, 2009
    Co-Authors: Daniel Trivellato, Fred Spiessens, Nicola Zannone, Sandro Etalle
    Abstract:

    In this paper we identify the requirements for the definition of a security framework for Distributed Access Control in dynamic coalitions of heterogeneous systems. Based on the elicited requirements, we introduce the POLIPO framework that combines Distributed Access Control with ontologies to give a globally understandable semantics to policies, enabling interoperability among heterogeneous systems.

  • POLIPO : policies & ontologies for interoperability, portability, and autonomy
    2009
    Co-Authors: Daniel Trivellato, Nicola Zannone, A.o.d. Spiessens, Sandro Etalle
    Abstract:

    In this paper we identify the requirements for the definition of a security framework for Distributed Access Control in dynamic coalitions of heterogeneous systems. Based on the elicited requirements, we introduce the POLIPO framework that combines Distributed Access Control with ontologies to give a globally understandable semantics to policies, enabling interoperability between autonomous and heterogeneous systems. In particular, we present a policy language and an architecture for policy evaluation. We also show that the framework is suitable for the specification and remote evaluation of portable policies.

Zeineb Ben Yahya - One of the best experts on this subject based on the ideXlab platform.

  • CRiSIS - MA-MOrBAC: A Distributed Access Control Model Based on Mobile Agent for Multi-organizational, Collaborative and Heterogeneous Systems
    Lecture Notes in Computer Science, 2018
    Co-Authors: Zeineb Ben Yahya, Farah Barika Ktata, Khaled Ghedira
    Abstract:

    Facing the current evolution of networks infrastructure and the expansion of the information system in organizations and businesses, protecting data and resources against unauthorized Access and unauthorized disclosure, is an important requirement of any information management system. In this context, diverse security issues are amplified. Particularly, Access Control seems of main importance because it ensures diverse security services, such as, authentication, identification, confidentiality and integrity. Several works are devoted for designing Access Control models. In this paper, we work to improve Multi-OrBAC model by introducing a new Distributed Access Control model based on Mobile Agent.

  • WI - Multi-organizational Access Control Model Based on Mobile Agents for Cloud Computing
    2016 IEEE WIC ACM International Conference on Web Intelligence (WI), 2016
    Co-Authors: Zeineb Ben Yahya, Farah Barika Ktata, Khaled Ghedira
    Abstract:

    The development of new digital technologies is swiftly rising. Thus, the cloud computing is grabbing-attention of information technology communities. In this context, diverse security issues are amplified. Particularly, Access Control seems of main importance because it ensures diverse security services, such as, authentication, identification, confidentiality and integrity. Several works are devoted for designing Access Control models. In this paper, we are particularly interested on Distributed Access Control approaches. According to identified drawbacks of Multi-OrBAC model, we introduce a new Distributed Access Control model for cloud computing based on Mobile Agent.

Ma Zhong - One of the best experts on this subject based on the ideXlab platform.

  • Research on Quorum System-based Framework for Distributed Access Control
    Computer Science, 2010
    Co-Authors: Ma Zhong
    Abstract:

    By researching on generalized system for Access Control,the paper put forward an Access Control framework adopting quorum system,and presented a mutual quorum Distributed Access Control system,with the high efficiency and the stability and security.Furthermore,the relation of system capability and system availability under the circumstance that the system nodes are not reliable was analyzed,and a result was given that the mode of the optimization of the entire system considers the capability and availability.

Chun Chen - One of the best experts on this subject based on the ideXlab platform.

  • Distributed Access Control with Privacy Support in Wireless Sensor Networks
    IEEE Transactions on Wireless Communications, 2011
    Co-Authors: Sencun Zhu, Sammy Chan, Chun Chen
    Abstract:

    A Distributed Access Control module in wireless sensor networks (WSNs) allows the network to authorize and grant user Access privileges for in-network data Access. Prior research mainly focuses on designing such Access Control modules for WSNs, but little attention has been paid to protect user's identity privacy when a user is verified by the network for data Accesses. Often, a user does not want the WSN to associate his identity to the data he requests. In this paper, we present the design, implementation, and evaluation of a novel approach, Priccess, to ensure Distributed privacy-preserving Access Control. In Priccess, users who have similar Access privileges are organized into the same group by the network owner. A network user signs a query command on behalf of his group and then sends the signed query to the sensor nodes of his interest. The signature can be verified by its recipient as coming from someone authorized without exposing the actual signer. In addition to the theoretical analysis that demonstrates the security properties of Priccess, this paper also reports the experimental results of Priccess in a network of Imote2 motes, which show the efficiency of Priccess in practice.