Toward an On-Demand Restricted Delegation Mechanism for Grids

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Provided by: University of Illinois at Chicago
Topic: Security
Format: PDF
Grids are intended to enable a cross-organizational interaction which makes grid security a challenging and non-trivial issue. In grids, delegation is a key facility that can be used to authenticate and authorize requests on behalf of disconnected users. In current grid systems there is a tradeoff between flexibility and security in the context of delegation. Applications must choose between limited or full delegation: on one hand, delegating a restricted set of rights reduces exposure to attack but also limits the flexibility/dynamism of the application; on the other hand, delegating all rights provides maximum flexibility but increases exposure.
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