A Lightweight Authentication Scheme Based on Consortium Blockchain for Cross-Domain IoT

<table class="table-group" id="tab7"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Operation</td><td class="align_center" colspan="2">Average time (ms)</td></tr><tr class="thead"><td class="align_center">Server (Lenovo PC)</td><td class="align_center">IoT (Raspberry Pi)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">Sign</td><td class="align_center">2.04</td><td class="align_center">21.98</td></tr><tr><td class="align_left">Verify</td><td class="align_center">0.86</td><td class="align_center">15.53</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Time cost of cryptographic operations.</div>

Security and Communication Networks

tab7

Table 7

Table 7: A Lightweight Authentication Scheme Based on Consortium Blockchain for Cross-Domain IoT 