A Blockchain-Based User Authentication Scheme with Access Control for Telehealth Systems

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transform="matrix(.0065,0,0,-0.0065,20.876,5.233)"><path d="M405 606C405 634 387 657 355 657C316 657 294 621 294 593C294 563 319 543 346 543C377 543 405 573 405 606ZM371 354C383 412 387 454 360 454C324 454 253 412 182 345L199 312C221 333 269 364 278 364C288 364 287 354 279 310L195 -97C185 -139 166 -179 137 -179C119 -179 94 -169 79 -164C68 -160 59 -160 52 -168C42 -177 25 -197 25 -216C25 -238 50 -253 74 -253C91 -253 124 -242 189 -187C255 -131 292 -40 316 81L371 354Z"></path></g></svg></span></td><td class="align_center">One month</td><td class="align_center">One month</td><td class="align_center">Three months</td><td class="align_center">…</td><td class="align_center">Seven months</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The access control list of patients.</div>

Security and Communication Networks

tab1

Table 1

Table 1: A Blockchain-Based User Authentication Scheme with Access Control for Telehealth Systems 