The study of privacy issues in the use of cloud storage
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[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI SYSTEM AT REQUEST OF AUTHOR.] Cloud Computing has become increasingly popular with both consumers and businesses. Consumers use cloud provider offerings to store files, share content with many other users, and other tasks that are either impossible or inconvenient to do on the user's device. Often these products can be used with no charge to consumers. However, using these services is by no means free. Instead of receiving payment directly from consumers, data generated using the service is used for compensation. Consumers have no choice but to trust these service providers with their data. For businesses, cloud resources are often cheaper than buying and maintaining those resources themselves. Storage Providers operate at such a large economy of scale that they can offer these prices while still making a profit. This model has benefits for all parties involved but comes with a significant disadvantage as things currently stand. That is the trust that must be placed with a provider when using their service. Given the provider runs the service some amount of trust is inevitable. However, the amount of trust can and should be minimized for any type of use. Furthermore, the architecture used by providers should enable efficiently honoring user preferences. With these goals in mind, this work aims to allow providers to more easily honor user preferences and for consumers to minimize the amount of trust needed. To enable cloud-providers to honor consumer location preferences this work extends the Hadoop Distributed File System to consider location policies for files when storing, replicating and transferring files. Additionally, this work proposes and implements an Asynchronous Anonymous Communication scheme using publicly available storage providers.
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