Enhancing Digital Certificate Usability in Long Lifespan IoT Devices by Utilizing Private CA

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Period</td><td class="align_center"><i>A</i> (less than a year)</td><td class="align_center"><i>B</i> (less than 10 years)</td><td class="align_center"><i>C</i> (more than 10 years)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left" rowspan="2">Risk</td><td class="align_center" rowspan="2">None</td><td class="align_center" rowspan="2">The end-entity certificate is expired</td><td class="align_center">TLS and its cipher suites are compromised</td></tr><tr><td class="align_center">Root certificate is expired</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Risks associating with each period.</div>

Security and Communication Networks

tab1

Table 1

Table 1: Enhancing Digital Certificate Usability in Long Lifespan IoT Devices by Utilizing Private CA 