notification/drawable-anydpi-v21/ic_enhanced_encryption_black_24dp.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
        android:width="24dp"
        android:height="24dp"
        android:viewportWidth="24.0"
        android:viewportHeight="24.0">
    <path
        android:fillColor="#FF000000"
        android:pathData="M18,8h-1V6c0,-2.76 -2.24,-5 -5,-5S7,3.24 7,6v2H6c-1.1,0 -2,0.9 -2,2v10c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2V10c0,-1.1 -0.9,-2 -2,-2zM8.9,6c0,-1.71 1.39,-3.1 3.1,-3.1s3.1,1.39 3.1,3.1v2H8.9V6zM16,16h-3v3h-2v-3H8v-2h3v-3h2v3h3v2z"/>
</vector>