“This is easy stuff man” Let’s assume for the sake of argument that electronics are perfect, and never fail for any reason (including but not limited to batter

“This is easy stuff man” Let’s assume for the sake of argument that electronics are perfect, and never fail for any reason (including but not limited to battery drain, battery overcharging, battery age, heat, cold, sudden change between heat and cold, vibration, shock, moisture, dryness, flooding, corrosion, UV degradation, rodent infiltration, wind, wind containing abrasives such as sand and dirt, chemical exposure, fire smoke exposure, fire heat exposure, sabotage due to local exploits, sabotage due to remote exploits, etc.). Ignoring all those possibilities, you are only left with the problem of key management. You can find an overview of those challenges at https://en.m.wikipedia.org/wiki/Key_management https://en.m.wikipedia.org/wiki/Key_management Managing secrets at a scale beyond people you know personally is extremely difficult to do correctly.