Ladislav Huraj

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In a short span of time, cloud computing has grown, particularly for commercial web applications. But the cloud computing has the potential to become a greater instrument for scientific computing as well. A pay-as-you-go model with minimal or no upfront costs creates a flexible and cost-effective means to access compute resources. In this paper, we carry(More)
In ad-hoc networks and other highly distributed and decentralized environments, authorization certificates can be used to control access. Moreover, it is possible to delegate rights listed in the certificate to another users. Several such subsequent delegations build a chain of certificates. Chains of delegation certificates can improve the capability and(More)
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