Privacy Enhanced Data Outsourcing in the Cloud

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Provided by: University of Wisconsin–River Falls
Topic: Cloud
Format: PDF
How to secure outsourcing data in cloud computing is a challenging problem, since a cloud environment cannot be considered to be trusted. The situation becomes even more challenging when outsourced data sources in a cloud environment are managed by multiple outsourcers who hold different access rights. In this paper, the authors introduce an efficient and novel tree-based key management scheme that allows a data source to be accessed by multiple parties who hold different rights. They ensure that the database remains secure, while some selected data sources can be securely shared with other authorized parties.
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