Abstract
The X.509 proxy certificate is widely used to delegate an entity’s right to another entity in the computational grid environment. However, this proxy certificate has two drawbacks: the potential security threat caused by non-traceability of a delegation chain and the inefficiency caused by an interactive communication between the right grantor and the right grantee on the delegation protocol. To address these problems, a new delegation protocol is presented. The proposed protocol employs an ID-based key generation technique to support delegation traceability and non-interactive delegation. Since access-right delegation occurs frequently in the computational grid environment, the proposed protocol can enhance security by providing delegation traceability and can enhance efficiency by reducing the inter-domain communication cost.
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