3 ms·
Face-to-face key signing/exchange, or any other kind of in person secret sharing, perhaps? BT/Wifi methods will broadcast data to anyone within radio range, bu
by jasonjayr 8y ago
Face-to-face key signing/exchange, or any other kind of in person secret sharing, perhaps?
BT/Wifi methods will broadcast data to anyone within radio range, but optical data exchange like this can take place under your coat, or using some easy means of protecting the transfer against 3rd party listeners.