A Novel Secure Scheme for Supporting Complex SQL Queries over Encrypted Databases in Cloud Computing

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/scn/volume-2018/7383514/figures/7383514.fig.008a.svgz" name="7383514.fig.008a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Range</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/scn/volume-2018/7383514/figures/7383514.fig.008b.svgz" name="7383514.fig.008b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Sum</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/scn/volume-2018/7383514/figures/7383514.fig.008c.svgz" name="7383514.fig.008c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Avg</td></tr></table>

<div>Execution times of FHOPE and CryptDB for the three sample queries.</div>

Security and Communication Networks

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Figure 8

Figure 8: A Novel Secure Scheme for Supporting Complex SQL Queries over Encrypted Databases in Cloud Computing 