Authenticated Location-Aware Publish/Subscribe Services in Untrusted Outsourced Environments

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/scn/volume-2017/4215425/figures/4215425.fig.007a.svgz" name="4215425.fig.007a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Varying <svg height="9.25202pt" id="M591" style="vertical-align:-3.29111pt" version="1.1" viewbox="-0.0498162 -5.96091 10.2212 9.25202" width="10.2212pt" 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="M352 391C352 416 319 448 267 448C236 448 173 423 147 400C107 364 96 332 96 304C96 248 143 210 193 181C241 153 258 124 258 100C258 72 232 38 184 38C151 38 107 66 81 108C77 114 64 116 55 111C34 99 23 84 23 65C23 29 81 -12 134 -12C220 -12 325 61 325 141C325 184 297 215 234 256C194 282 161 309 161 346C161 380 188 401 217 401C255 401 279 380 301 353C308 344 313 341 325 347C341 355 352 371 352 391Z" id="g113-116"></path></g><g transform="matrix(.0091,0,0,-0.0091,4.81,3.132)"><path d="M501 517C491 587 426 710 310 710C240 710 175 662 175 601C175 561 201 517 250 452C219 438 187 423 157 404C88 360 24 280 24 178C24 71 90 -12 195 -12C250 -12 297 6 334 32C412 87 452 170 452 249C452 335 408 396 333 481C259 565 229 601 229 621C229 642 245 652 275 652C359 652 427 583 490 499L501 517ZM364 233C364 142 323 33 222 33C173 33 119 81 119 178C119 265 156 335 193 374C213 395 242 413 272 425C308 384 364 319 364 233Z" id="g50-226"></path></g></svg></td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/scn/volume-2017/4215425/figures/4215425.fig.007b.svgz" name="4215425.fig.007b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Varying <svg height="9.25202pt" id="M592" style="vertical-align:-3.29111pt" version="1.1" viewbox="-0.0498162 -5.96091 9.98369 9.25202" width="9.98369pt" 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="M352 391C352 416 319 448 267 448C236 448 173 423 147 400C107 364 96 332 96 304C96 248 143 210 193 181C241 153 258 124 258 100C258 72 232 38 184 38C151 38 107 66 81 108C77 114 64 116 55 111C34 99 23 84 23 65C23 29 81 -12 134 -12C220 -12 325 61 325 141C325 184 297 215 234 256C194 282 161 309 161 346C161 380 188 401 217 401C255 401 279 380 301 353C308 344 313 341 325 347C341 355 352 371 352 391Z" id="g113-116"></path></g><g transform="matrix(.0091,0,0,-0.0091,4.81,3.132)"><path d="M487 458L455 460C436 434 425 433 397 433C331 433 279 437 225 437C103 437 52 374 24 338L49 312C100 363 152 379 229 374C210 308 184 213 163 117C158 94 156 74 156 58C156 6 180 -12 211 -12C261 -12 313 27 348 68L332 99C307 76 285 64 267 64C252 64 236 86 250 148L301 373C320 373 344 369 364 369C399 369 435 370 450 372C458 386 470 411 487 458Z" id="g50-241"></path></g></svg></td></tr></table>

Security and Communication Networks

fig7

Figure 7

Figure 7: Authenticated Location-Aware Publish/Subscribe Services in Untrusted Outsourced Environments 