2 Search Results for "Nejdl, Wolfgang"


Document
Security and Trust Issues in Semantic Grids

Authors: Daniel Olmedilla, Omer F. Rana, Brian Matthews, and Wolfgang Nejdl

Published in: Dagstuhl Seminar Proceedings, Volume 5271, Semantic Grid: The Convergence of Technologies (2005)


Abstract
Grid computing allows sharing of services and resources accross institutions. However, current Grid security mechanisms for authentication and authorization are too rigid and they lack the ability to determine how ``trustworthy'' the result obtained from a specific provider is likely to be. This paper describes the different facets associated to Trust and identifies the need for Trust Management approaches in the context of Virtual Organizations lifecycle and resource access control in the Grid.

Cite as

Daniel Olmedilla, Omer F. Rana, Brian Matthews, and Wolfgang Nejdl. Security and Trust Issues in Semantic Grids. In Semantic Grid: The Convergence of Technologies. Dagstuhl Seminar Proceedings, Volume 5271, pp. 1-11, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2006)


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@InProceedings{olmedilla_et_al:DagSemProc.05271.11,
  author =	{Olmedilla, Daniel and Rana, Omer F. and Matthews, Brian and Nejdl, Wolfgang},
  title =	{{Security and Trust Issues in Semantic Grids}},
  booktitle =	{Semantic Grid: The Convergence of Technologies},
  pages =	{1--11},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2006},
  volume =	{5271},
  editor =	{Carole Goble and Carl Kesselman and York Sure},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.05271.11},
  URN =		{urn:nbn:de:0030-drops-4081},
  doi =		{10.4230/DagSemProc.05271.11},
  annote =	{Keywords: Trust, Security, Policies, Safety, Reputation, VO Lifecycle}
}
Document
Negotiating Trust on the Grid

Authors: Jim Basney, Wolfgang Nejdl, Daniel Olmedilla, Von Welch, and Marianne Winslett

Published in: Dagstuhl Seminar Proceedings, Volume 5271, Semantic Grid: The Convergence of Technologies (2005)


Abstract
Grids support dynamically evolving collections of resources and users, usually spanning multiple administrative domains. The dynamic and crossorganizational aspects of Grids introduce challenging management and policy issues for controlling access to Grid resources. In this paper we show how to extend the Grid Security Infrastructure to provide better support for the dynamic and cross-organizational aspects of Grid activities, by adding facilities for dynamic establishment of trust between parties. We present the PeerTrust language for access control policies, which is based on guarded distributed logic programs, and show how to use PeerTrust to model common Grid trust needs.

Cite as

Jim Basney, Wolfgang Nejdl, Daniel Olmedilla, Von Welch, and Marianne Winslett. Negotiating Trust on the Grid. In Semantic Grid: The Convergence of Technologies. Dagstuhl Seminar Proceedings, Volume 5271, pp. 1-20, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2005)


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@InProceedings{basney_et_al:DagSemProc.05271.7,
  author =	{Basney, Jim and Nejdl, Wolfgang and Olmedilla, Daniel and Welch, Von and Winslett, Marianne},
  title =	{{Negotiating Trust on the Grid}},
  booktitle =	{Semantic Grid: The Convergence of Technologies},
  pages =	{1--20},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2005},
  volume =	{5271},
  editor =	{Carole Goble and Carl Kesselman and York Sure},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.05271.7},
  URN =		{urn:nbn:de:0030-drops-3872},
  doi =		{10.4230/DagSemProc.05271.7},
  annote =	{Keywords: Trust, policy, negotiation}
}
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