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Database as a service (DaaS) is a new paradigm based on the cloud computing platform. With the growing concerns on privacy, the user shope to have a security manner to store their data in the cloud. In order to improve the privacy protecting method for the sensitive data shared in the cloud, this paper proposes a privacy-preserving access control protocol based on multi-levels access control, Feldman...
Database as a Service (DaaS) is a common service mode in Cloud Computing. Based on Feldman (t,n) VSS protocol and ElGamal homomorphism property, we proposed a privacy-preserving access control protocol for DaaS. Using Secret Sharing, we can protect the security of data owner's dataset, based on ElGamal homomorphism property, the data requester's query combining with the proxy servers' access control...
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