mkdocs-material/material/.icons/material/folder-key-outline.svg

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 18H4V8h16m0-2h-8l-2-2H4c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V8c0-1.1-.9-2-2-2m-7.2 6c-.4-1.2-1.5-2-2.8-2-1.7 0-3 1.3-3 3s1.3 3 3 3c1.3 0 2.4-.8 2.8-2H15v2h2v-2h2v-2h-6.2M10 14c-.6 0-1-.4-1-1s.4-1 1-1 1 .4 1 1-.4 1-1 1z"/></svg>