496 research outputs found

    SoNeUCONADM: the administrative model for SoNeUCONABC usage control model

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    The popularity of Web Based Social Networks (WBSNs) encourages their enhancement. Many WBSN data is considered personal data and access control management plays a key role in this regard. The point is not only to manage access control but to determine how administration should be performed. Based on SoNeUCONABC, an expressive usage control model that allows fine-grained access control management, this paper presents SoNeUCONADM, the complementary administrative model. Based on a pair of related and popular administrative models, the evaluation proves the completeness of SoNeUCONADM

    Access control, reverse access control and replication control in a world wide distributed system

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    In this paper we examine several access control problems that occur in an object-based distributed system that permits objects to be replicated on multiple machines. First, there is the classical access control problem, which relates to which users can execute which methods. Second, we identified a reverse access control problem, which concerns which replicas can execute which methods for authorized users. Finally, there is the issue of how updates are propagated securely from replica to replica. Our solution uses roles and preserves the scalability needed in a world-wide distributed system

    Robust access control framework for mobile cloud computing network

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    Unified communications has enabled seamless data sharing between multiple devices running on various platforms. Traditionally, organizations use local servers to store data and employees access the data using desktops with predefined security policies. In the era of unified communications, employees exploit the advantages of smart devices and 4G wireless technology to access the data from anywhere and anytime. Security protocols such as access control designed for traditional setup are not sufficient when integrating mobile devices with organization's internal network. Within this context, we exploit the features of smart devices to enhance the security of the traditional access control technique. Dynamic attributes in smart devices such as unlock failures, application usage, location and proximity of devices can be used to determine the risk level of an end-user. In this paper, we seamlessly incorporate the dynamic attributes to the conventional access control scheme. Inclusion of dynamic attributes provides an additional layer of security to the conventional access control. We demonstrate that the efficiency of the proposed algorithm is comparable to the efficiency of the conventional schemes
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