So… I found out a way to send encrypted messages using amateur radio.
There is an app called Rattlegram that lets you convert a string of text into soundwaves that plays though your phone’s speaker. If I just use an app like Secure Space Encryptor (SSE) to encrypt a text, then copy-paste it to the Rattlegram app, then transmit that over radio, then using the same app to record the sound and reverse the process on the other end. Voila! Encrypted long(ish) range communications without a centralized server!
But I looked it up and apparantly its illegal to encrypt communications over the amateur radio bands. What are the odds of actually getting in trouble? 🤔
(To the FCC agents reading this: this is just a hypothetical, a thought experiment, I’m totally not gonna do this 😉)
Hell, Kevin Mitnick was caught via cellular tower triangulation all the way back in the 90’s.
It’s far from new technology too, so at this point you would think radio triangulation would be piss easy and cheap to do.
Agreed on the LoRa devices. I personally think the future of comms is in meshed low power high latency devices.
https://hackaday.com/2022/05/25/long-distance-text-communication-with-lora/
https://github.com/BigCorvus/LORA-QWERTY-Communicator
These take some knowledge to build, but I think they’re pretty slick.