[jsilence]

Internet via Ham Radio aka Packet Radio is a thing: https://themodernham.com/ip-over-ham-radio-via-new-packet-ra...

Pair it with the Gemini protocol and you're there: https://en.wikipedia.org/wiki/Gemini_(protocol)

[wildzzz]

Too many narcs on the ham bands would track you down for operating encrypted ham packet radio. You're better off using something like LoRa over the ISM bands. Build out a network of hidden mesh nodes over the area you'd like to operate and that's probably the closest you'll get to a true clandestine network. Of course the major issue with transmitting any RF energy is that someone can watch the spectrum and look for those transmissions and eventually track down your nodes. LoRa uses DSSS which if operating at minimum power, could help hide transmissions.

If you want to add some illegality to the system, you could piggyback on amsats or open relay satellites like FLTSATCOM to expand your network and hide better.

[namibj]

Actually LoRa uses chirps designed for iiuc partially analog demodulation to be very energy-efficient.

For hiding you'd be able to use actual DSSS with e.g. AES encrypting a suitably fine grained clock piggybacking on GPS as a time reference, keyed by a shared secret. Then just hone in with e.g. a Costas loop like a GPS receiver does to it's satellites (where the sequence is sourced from a simple clocked logic circuit that's cheap and offers better than random spreading gain at the cost of being cryptographically useless) and demodulate the payload the same way.

You could start off at GPS synchronous sequence generator timing, and slowly shift it at increasing delay until lock in is archived or an implausibly long implied travel distance (signal loss!) is reached (then you can give up and start over, go to sleep and try later, etc.).

[michaelt]

Isn't ham radio no-encryption-allowed, no-commercial-use-allowed?

[bityard]

Sort of, yes, but it's quite a bit more nuanced than that.

The actual rules say you're not allowed to obscure the meaning of a message. Use of encryption itself is not specifically prohibited, but you're not allowed to hide the information being sent. So, "encryption" is technically allowed for things like authentication and signatures, under most interpretations of the rule.

It is correct that you're not allowed to use your ham license for any commercial purpose. But again, there are narrow exceptions: a teacher getting paid to teach a class on amateur radio or science in general can transmit to demonstrate the technology, or an astronaut or military member making contacts with amateurs for goodwill purposes or as part of an exercise.

[tessierashpool9]

at the risk of this not flying well with some ham people here but i'd say the heck with those regulations i'm encrypting and that's the end of the story it's called clandestine for a reason after all

[deknos]

Signatures are okay though.

And you can do encryption, when you have to control remote devices which belong to you.

and internet still can be non commercial.

[myth2018]

It is. That doesn't disallow mesh networks, but Gemini would be off-limits due to TLS. Gopher would be OK.

[bityard]

Ham radio is actively unfit for the requirement of "clandestine" for the parent commentor's purpose.