19 Mar
2022
19 Mar
'22
10:39 p.m.
On 3/18/22, Undiscussed Horrific Abuse, One Victim of Many
I would like an airgapped message composition device I can keep in my pocket, with a private key generated on it, and to take it to a keysigning party and share signatures with it!
Without radios you only have USB which is not airgap and is full of writeable firmware and filesystem and OS and automagic. Though displays and cameras could be used to swap qrcodes or video streams containing such data, speakers and mics for acoustic serial modem, vibes and accelerometer seismograph, LED and IR remote, CPU heat and thermometer, ... Mutual sensor pairings should all have libraries and tools for doing simple data transfer via them.