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Cake day: August 9th, 2023

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  • I could expose my IP, I was previously and really don’t have a problem with it. My IP is fairly static. It’s just more convenient to use cloudflared internal to the network and proxy the addresses.

    If I can’t figure out an automated solution for this, that’s likely what I’ll do. I’m just hopeful there’s a tool out there to do this that I’m just not familiar with.

    Thanks for the response regardless, I appreciate you taking the time!














  • Totps only works when both source and recipient are synced pretty much identically in time. Meaning the car and fob would need to receive their time from an external source.

    Not that hard in many places, just grab the time from a radio broadcast. But what happens when that broadcast isn’t available? You fall back on a known inaccurate time. I’ve seen cars with a bum RTC chip, which lost about a minute a day. That would be enough to kill off this kind of system.

    Not to mention that an external time source would be larger, cost more, require more power, and would be vulnerable to brand new attacks.

    There is no perfect system. Take your physical lock for instance, there is no unpickable lock. They just plum don’t exist.