Encrypted Speech Retrieval Scheme Based on Multiuser Searchable Encryption in Cloud Storage

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">User</td><td class="align_center" colspan="4">Attributes</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">DU<sub>0</sub></td><td class="align_center"><i>L</i><sub>01</sub></td><td class="align_center"><i>L</i><sub>02</sub></td><td class="align_center"><span style="width: 15.5623ptpx;"><svg height="4.18388pt" id="M51" style="vertical-align:-0.04981995pt" version="1.1" viewbox="-0.0498162 -4.13406 15.5623 4.18388" width="15.5623pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g><g transform="matrix(.013,0,0,-0.013,5.143,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g><g transform="matrix(.013,0,0,-0.013,10.286,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g></svg></span></td><td class="align_center"><i>L</i><sub>0n</sub></td></tr><tr><td class="align_left">DU<sub>1</sub></td><td class="align_center"><i>L</i><sub>11</sub></td><td class="align_center"><i>L</i><sub>12</sub></td><td class="align_center"><span style="width: 15.5623ptpx;"><svg height="4.18388pt" id="M52" style="vertical-align:-0.04981995pt" version="1.1" viewbox="-0.0498162 -4.13406 15.5623 4.18388" width="15.5623pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g><g transform="matrix(.013,0,0,-0.013,5.143,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g><g transform="matrix(.013,0,0,-0.013,10.286,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g></svg></span></td><td class="align_center"><i>L</i><sub>1n</sub></td></tr><tr><td class="align_left">DU<sub>2</sub></td><td class="align_center"><i>L</i><sub>21</sub></td><td class="align_center"><i>L</i><sub>22</sub></td><td class="align_center"><span style="width: 15.5623ptpx;"><svg height="4.18388pt" id="M53" style="vertical-align:-0.04981995pt" version="1.1" viewbox="-0.0498162 -4.13406 15.5623 4.18388" width="15.5623pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g><g transform="matrix(.013,0,0,-0.013,5.143,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g><g transform="matrix(.013,0,0,-0.013,10.286,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g></svg></span></td><td class="align_center"><i>L</i><sub>2n</sub></td></tr><tr><td class="align_left"><span style="width: 19.9167ptpx;"><svg height="4.18388pt" id="M54" style="vertical-align:-0.04981995pt" version="1.1" viewbox="-0.0498162 -4.13406 19.9167 4.18388" width="19.9167pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,4.354,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g><g transform="matrix(.013,0,0,-0.013,9.497,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g><g transform="matrix(.013,0,0,-0.013,14.641,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g></svg></span></td><td class="align_center"><span style="width: 15.5623ptpx;"><svg height="4.18388pt" id="M55" style="vertical-align:-0.04981995pt" version="1.1" viewbox="-0.0498162 -4.13406 15.5623 4.18388" width="15.5623pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g><g transform="matrix(.013,0,0,-0.013,5.143,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g><g transform="matrix(.013,0,0,-0.013,10.286,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g></svg></span></td><td class="align_center"><span style="width: 15.5623ptpx;"><svg height="4.18388pt" id="M56" style="vertical-align:-0.04981995pt" version="1.1" viewbox="-0.0498162 -4.13406 15.5623 4.18388" width="15.5623pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g><g transform="matrix(.013,0,0,-0.013,5.143,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g><g transform="matrix(.013,0,0,-0.013,10.286,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g></svg></span></td><td class="align_center"><span style="width: 15.5623ptpx;"><svg height="4.18388pt" id="M57" style="vertical-align:-0.04981995pt" version="1.1" viewbox="-0.0498162 -4.13406 15.5623 4.18388" width="15.5623pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g><g transform="matrix(.013,0,0,-0.013,5.143,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g><g transform="matrix(.013,0,0,-0.013,10.286,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g></svg></span></td><td class="align_center"> </td></tr><tr><td class="align_left">DU<sub>m</sub></td><td class="align_center"><i>L</i><sub>m1</sub></td><td class="align_center"><i>L</i><sub>m2</sub></td><td class="align_center"><span style="width: 15.5623ptpx;"><svg height="4.18388pt" id="M58" style="vertical-align:-0.04981995pt" version="1.1" viewbox="-0.0498162 -4.13406 15.5623 4.18388" width="15.5623pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g><g transform="matrix(.013,0,0,-0.013,5.143,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g><g transform="matrix(.013,0,0,-0.013,10.286,0)"><path d="M170 255C170 288 146 313 114 313S58 288 58 255C58 221 82 198 114 198S170 221 170 255Z"></path></g></svg></span></td><td class="align_center"><i>L</i><sub>mn</sub></td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The access control attribute list of the users.</div>

Security and Communication Networks

tab1

Table 1

Table 1: Encrypted Speech Retrieval Scheme Based on Multiuser Searchable Encryption in Cloud Storage 