Access control for collaborative environments

Shen, Honghai; Dewan, Prasun

doi:10.1145/143457.143461

Cited by 199 publications

(105 citation statements)

References 10 publications

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“…Access control policy for collaborative environments and their requirements have been described in [12]. The use of RBAC model in collaborative systems is explained in [13].…”

Section: Background and Related Workmentioning

confidence: 99%

Enhanced sharing and privacy in distributed information sharing environments

Malik

Dustdar

2011

2011 7th International Conference on Information Assurance and Security (IAS)

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-With the advancement in distributed computing and collaborative software technologies, information sharing and privacy related issues are gaining interest of researchers related to digital information creation, management, and distribution. Collaborative information sharing environment requires enhanced information sharing among users while privacy laws demand for the protection of user's information from unauthorized access and usage. Keeping this trade-off in view, there is a need for a flexible and enhanced information sharing model that preserves the privacy of user's information. We extend the Role-Based Access Control (RBAC) model to incorporate sharing and privacy related requirements and present a Dynamic Sharing and Privacy-aware RoleBased Access Control (DySP-RBAC) model. It is a family of models including core, hierarchical, and constrained RBAC models. The RBAC model is extended using team and task data elements as well as new data elements related to sharing and privacy of information. Sharing and privacy-based permission assignments and their conflicthandling strategies are described for a distributed and dynamic information sharing scenario.

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“…Access control policy for collaborative environments and their requirements have been described in [12]. The use of RBAC model in collaborative systems is explained in [13].…”

Section: Background and Related Workmentioning

confidence: 99%

Enhanced sharing and privacy in distributed information sharing environments

Malik

Dustdar

2011

2011 7th International Conference on Information Assurance and Security (IAS)

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“…Access Control Lists (ACL) and Capability Lists (CL) cannot support very well dynamic change of permissions. Hence, the administrator of collaborative environments often sets stricter permissions, as multiple users with varying levels of privileges will try to access shared resources [12]. Role Based Access Control (RBAC) [11] overcomes some problems with dynamic change of rights.…”

Section: Related Workmentioning

confidence: 99%

A Flexible Access Control Model for Distributed Collaborative Editors

Imine

Cherif

Rusinowitch

2009

Lecture Notes in Computer Science

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Abstract. Distributed Collaborative Editors (DCE) provide computer support for modifying simultaneously shared documents, such as articles, wiki pages and programming source code, by dispersed users. Controlling access in such systems is still a challenging problem, as they need dynamic access changes and low latency access to shared documents. In this paper, we propose a flexible access control model where the shared document and its authorization policy are replicated at the local memory of each user. To deal with latency and dynamic access changes, we use an optimistic access control technique in such a way that enforcement of authorizations is retroactive. We show that naive coordination between updates of both copies can create security holes on the shared document, by permitting illegal modifications or rejecting legal modifications. Finally, we present a prototype for managing authorizations in collaborative editing work which may be deployed easily on P2P networks.

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“…Shen et al [7] studied access control mechanisms in a simple collaborative environment, i.e. a simple collaborative text editing environment.…”

Section: Background and Related Workmentioning

confidence: 99%

An Annotation-Based Access Control Model and Tools for Collaborative Information Spaces

Nasirifard

Peristeras

Decker

2008

Emerging Technologies and Information Systems for the Knowledge Society

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Abstract. We present an Annotation-Based Access Control model supported by a Collaboration Vocabulary (CoVoc) as a more flexible and user-centric access control approach in social platforms and shared workspaces. We present also briefly two SOA-based tools for enabling our approach: Uncle-Share is a gadget that provides annotation-based access control for bookmarks and uses CoVoc for annotating collaborative relationships. Who-With-Whom uses also CoVoc and visualizes extended social networks in order to help users to select the appropriate contacts to grant access to resources.

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Access control for collaborative environments

Cited by 199 publications

References 10 publications

Enhanced sharing and privacy in distributed information sharing environments

Enhanced sharing and privacy in distributed information sharing environments

A Flexible Access Control Model for Distributed Collaborative Editors

An Annotation-Based Access Control Model and Tools for Collaborative Information Spaces

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