Privacy

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A place to discuss privacy and freedom in the digital world.

Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.

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Do P2P Messaging apps that don't require the internet exist? (lemmings.world)

submitted 18 hours ago by [email protected] to c/[email protected]

37 comments fedilink hide all child comments

We all know Signal, Matrix, Telegram, SimpleX, etc... But if you can't access the internet you can't communicate. Pretty logic. But would it be possible, at least theoretically, to create an app that permits to message people even if the internet goes down?

It might be a dumb question I really have no idea to be honest.

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[–] [email protected] 3 points 16 hours ago* (last edited 16 hours ago) (1 children)

wouldn't a cheap walkie-talkie be more practical in that situation?

i remember using this app some time ago ☞ https://f-droid.org/packages/org.jsl.wfwt/

[–] [email protected] 3 points 13 hours ago (1 children)

wouldn’t a cheap walkie-talkie be more practical in that situation?

That's not secure or encrypted

[–] [email protected] 5 points 13 hours ago

You can encrypt a radio.

Rattlegram is an app on iOS/Android that alllows converting text to audio and play it over your phone's speaker

Secure Space Encryptor (SSE) (known as Paranoia Text Encryption on iOS) is an Open Source app that can encrypt text.

Use SSE to encrypt text
Copy-Paste the Ciphertext to Rattlegram
Sent it over the radio
On the other end, use Raddlegram to turn the audio back to the ciphertext
Use SSE to decrypt.

Voila! Off-Grid Encrypted communications.

Warning: Encryption over radio is illegal in many countries 😉 (but fuck the law lol, who cares)