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Got stuck here again. Had to post.
(lemmy.world)
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this post was submitted on 18 Jan 2024
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Using the local network for the connection is a garbage plan because Wi-Fi coverage and availability is not consistent enough to become mainstream. I am aware of two practical solutions for this: instant hotspot (assuming the sharing app can temporarily reconfigure the wifi settings, and wifi encryption keys can be transferred with a QR code) or OnionShare (uses TOR to make a sharable link using any firewall/NAT configuration, share the link with a QR code).
You don’t need to use TCPIP with WiFi. It can be ad-hoc and some other protocol.
yeah I just researched and learned about wifi direct
By “WiFi” I mean the wireless protocol, which is confusing because that includes Bluetooth.
...b-but I hate Bluetooth with a passion...
That’s the data on top of it. Some sort of universal sharing protocol would have some kind of broadcast, either over a LAN or over the air, then there would be a handshake which would exchange MACs and cryptographic keys, then the actual exchange of data.
It would have nothing to do with Bluetooth, it would just use the 802.11 public use bands.