A new security model for collaborative environments

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Prevalent authentication and authorization models for distributed systems provide for the protection of computer systems and resources from unauthorized use. The rules and policies that drive the access decisions in such systems are typically configured up front and require trust establishment before the systems can be used. This approach does not work well for computer software that moderates human-to-human interaction. This work proposes a new model for trust establishment and management in computer systems supporting collaborative work. The model supports the dynamic addition of new users to a collaboration with very little initial trust placed into their identity and supports ... continued below

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Agarwal, Deborah; Lorch, Markus; Thompson, Mary & Perry, Marcia June 6, 2003.

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Description

Prevalent authentication and authorization models for distributed systems provide for the protection of computer systems and resources from unauthorized use. The rules and policies that drive the access decisions in such systems are typically configured up front and require trust establishment before the systems can be used. This approach does not work well for computer software that moderates human-to-human interaction. This work proposes a new model for trust establishment and management in computer systems supporting collaborative work. The model supports the dynamic addition of new users to a collaboration with very little initial trust placed into their identity and supports the incremental building of trust relationships through endorsements from established collaborators. It also recognizes the strength of a users authentication when making trust decisions. By mimicking the way humans build trust naturally the model can support a wide variety of usage scenarios. Its particular strength lies in the support for ad-hoc and dynamic collaborations and the ubiquitous access to a Computer Supported Collaboration Workspace (CSCW) system from locations with varying levels of trust and security.

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OSTI as DE00816544

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  • Workshop on Advanced Collaborative Environments, Seattle, WA (US), 06/22/2003

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  • Report No.: LBNL--52894
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 816544
  • Archival Resource Key: ark:/67531/metadc735204

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Office of Scientific & Technical Information Technical Reports

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  • June 6, 2003

Added to The UNT Digital Library

  • Oct. 18, 2015, 6:40 p.m.

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  • April 4, 2016, 3:30 p.m.

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Agarwal, Deborah; Lorch, Markus; Thompson, Mary & Perry, Marcia. A new security model for collaborative environments, article, June 6, 2003; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc735204/: accessed December 12, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.