Oblivious Outsourced Storage with Delegation

@inproceedings{Franz2011ObliviousOS,
  title={Oblivious Outsourced Storage with Delegation},
  author={Martin Franz and Peter Williams and Bogdan Carbunar and Stefan Katzenbeisser and Andreas Peter and Radu Sion and Miroslava Sot{\'a}kov{\'a}},
  booktitle={Financial Cryptography},
  year={2011}
}
In the past few years, outsourcing private data to untrusted servers has become an important challenge. This raises severe questions concerning the security and privacy of the data on the external storage. In this paper we consider a scenario where multiple clients want to share data on a server, while hiding all access patterns. We propose here a first solution to this problem based on Oblivious RAM (ORAM) techniques. Data owners can delegate rights to external new clients enabling them to… CONTINUE READING

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