Would there be a market for a VPN-style zeroconf networking "protocol" (that maybe sits on top of TCP) that would work with a yubikey and NFC? The effect would

Would there be a market for a VPN-style zeroconf networking "protocol" (that maybe sits on top of TCP) that would work with a yubikey and NFC? The effect would be that if you didn't, at some point, swipe the yubikey (or other token) on the IoS (internet of shit) device, and on the router/smart phone/PC, then you just get encrypted data. I think this would be intuitive to many people, physically touching the security wand on the devices you want to connect, and voila. Of course, this wouldn't work for the companies selling you this junk where they insert themselves and their paywall in between. I'm just wondering if TLS could be (ab)used for this use case.