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1182 sats \ 34 comments \ @bitcoin_devs 6h bitcoin

Bitchat: Decentralized peer-to-peer private messaging app

2/ No Internet, No servers, No Phone numbers

3/ Scenario

4/ How relay works

5/ Multi-hop Communication

6/ Noise XX protocol

Next posts will cover:

The Noise Protocol (encryption)
Ephemeral peer IDs (privacy)
E-cash x Bitchat (bitcoin)

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0 sats \ 25 replies \ @DarthCoin 5h

If I really need to send a private message, I use smoke signals or fax. Otherwise is all PUBLIC. Anything you do on internet is PUBLIC. Learn to separate private things from public.

38 sats \ 24 replies \ @kristapsk 5h

How are smoke signals or fax private? Fax is especially non-private, as phone company sees and can save everything, unencrypted. For smoke signals at least there are limited visibility. But, in any case, if you want something to be private, encryption is a must on top of any communication.

5 sats \ 23 replies \ @DarthCoin 5h

please decrypt my messages over https://bitcoinfax.net/ not even a MiM can do it... smoke signals? I can invent my own signal language...

if you want something to be private, encryption is a must on top of any communication.

ONLY if you use internet, yes

if you want something to be private,

then do not post it online. PERIOD. Is really stupid to cry out about "protect my online privacy" when you continue to post private things on a public space. Internet is a public space, no matter how much privacy you want. Privacy means you do not share your private stuff in a public place.

0 sats \ 22 replies \ @kristapsk 5h

please decrypt my messages over https://bitcoinfax.net/

I am not a a phone company, so I can't do that, as I can't access the data. But provider for receiver can access that data. I don't see how relaying message through phone company is more secure than Internet or Bluetooth.

smoke signals? I can invent my own signal language...

Yes, you can, but, for example, AES-CBC is definitely better.

"Anyone, from the most clueless amateur to the best cryptographer, can create an algorithm that he himself can't break." / Bruce Schneier /

ONLY if you use internet, yes

No. Encryption was used since at least ancient Egypt for secret communications for a reason.

5 sats \ 21 replies \ @DarthCoin 5h

But provider for receiver can access that data

If I send a stupid image with a hidden message, not even the provider can know what am I sending. Fax is still the best way to hide messages in plain sight.

Internet is just a joke nowadays.

In my early young years surviving the communism I invented my own language based on geometry signs, used with my closed friends. One day the security services found our signs, but not even after 30 years they couldn't decrypt our messages LOL

5 sats \ 16 replies \ @kristapsk 5h

Besides, bitcoinfax.bet will send it anyways over Internet.

If you are being watched by agencies, In Latvia it could be suspicious if you want to send fax for some strange reason, nobody uses it here for decades. :D

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0 sats \ 2 replies \ @kristapsk 5h

And how it differs if you send the same image with a hidden message over Internet?

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0 sats \ 0 replies \ @hasherstacker 2h

One day the security services found our signs, but not even after 30 years they couldn't decrypt our messages.

Interesting!

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0 sats \ 0 replies \ @crrdlx 51m

Bitchat is neat stuff, but...range. This would be great for a conference or concert or something like that, but fir everything else (aside from offline ecash payment which is fantastic) ...range. We need Reticulum/Meshtastic integration. https://njump.me/naddr1qqdxy6t5vd5xzarj943xjarrdpshgttjv46xjcm4d36k6q3qqpdufhjpel94srm3ett2azgf49m9dp3n5nm2j0rt0l2mlmc3ux3qxpqqqp65whrszcu

0 sats \ 0 replies \ @WeAreAllSatoshi 1h

Side note, I wish OP engaged more on posts like these

0 sats \ 2 replies \ @pappasbland 3h

This helps, thanks! The total range of only 300meters seems......limiting. -Tom

40 sats \ 1 reply \ @WeAreAllSatoshi 1h

I’ve heard a potential use case as when attending a large event with high concentration of devices, when traditional cellular networks struggle. Could be useful there, for sure

0 sats \ 0 replies \ @pappasbland 1h

Indeed, that would make sense.

0 sats \ 0 replies \ @teemupleb 4h

Love these simple cartoon explanations.

They massage well my 80 IQ pleb brain.

0 sats \ 0 replies \ @BlokchainB 4h

People are hype because of the Dorsey factor. Just like nostr

0 sats \ 0 replies \ @WeAreAllSatoshi 5h

Do relays have to be running a bitchat app in the background to act as relays?

If so, this relies upon network effect of people joining the network to help it expand