A Quantum-Based Database Query Scheme for Privacy Preservation in Cloud Environment

<div>The schematic graph of the execution process of Alice and Bob in our QBDQ scheme, assuring they query the<i> 9</i>-<i>th</i> and<i> 5-th</i> items, respectively.</div>

Security and Communication Networks

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Figure 6

Figure 6: A Quantum-Based Database Query Scheme for Privacy Preservation in Cloud Environment 