151–160 of 353 posts
One missing feature: deferred message propagation. As far as I understand, while messages will be rebroadcast until a TTL is exhausted, there is no mechanism to retain in-transit messages and retransmit them to future peers. While this adds overheads, it's table stakes for real-life usage. You should be able to write a message and not rely on the recipient being available when you press send. You should also be able…
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Lack of retention can actually be a feature in these types of situations. It should be opt-in. The government would actually need to infiltrate the network in order to read the conversations, instead of just retrieving the messages from the cache on a confiscated phone
> instead of just retrieving the messages from the cache on a confiscated phone why wouldn't encryption be a part of recipe here rendering government acquisition of such a cache moot?
>At its core, BitChat leverages the Noise Protocol Framework (specifically, the XX pattern) to establish mutually authenticated, end-to-end encrypted sessions between peers.
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On a cruise ship, isn't the cheap walkie talkies still a thing? Or did those die with cell phones? For me the cell phone without internet is almost useless, not much I can do on it, might as well sue a purpose built device. They're also very cheap. Even better if Nextel still worked on phones (but without service).
The boat could do a captive portal and provide it's own LAN?
This feels like something Apple should do with iPhones. Find My and air tags was already a huge success because of the ubiquitous nature of iPhones. Apple could add this to iPhone, sell it as privacy focussed. Let you message anyone in your iMessage contacts with a new bubble colour. Propagate over Bluetooth when you don't have internet. I can see a snazzy Apple reveal for this showcasing it's use on a cruise ship, i…
Wouldn’t that bring the wrath of mobile carriers around the world on their back? If there is a decentralised system that doesn’t require infrastructure , what is left to monetise?
Low latency, high bandwidth
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On a cruise ship, isn't the cheap walkie talkies still a thing? Or did those die with cell phones? For me the cell phone without internet is almost useless, not much I can do on it, might as well sue a purpose built device. They're also very cheap. Even better if Nextel still worked on phones (but without service).
> For me the cell phone without internet is almost useless Projects like this one are a step towards fixing that. Personally I choose to keep both street and topographical maps of the entire continent locally on my phone. There are plenty of uses for a computer without a WAN connection.
And if nothing else, you can always rupture the battery and start a fire :-)
This feels like something Apple should do with iPhones. Find My and air tags was already a huge success because of the ubiquitous nature of iPhones. Apple could add this to iPhone, sell it as privacy focussed. Let you message anyone in your iMessage contacts with a new bubble colour. Propagate over Bluetooth when you don't have internet. I can see a snazzy Apple reveal for this showcasing it's use on a cruise ship, i…
Wouldn’t that bring the wrath of mobile carriers around the world on their back? If there is a decentralised system that doesn’t require infrastructure , what is left to monetise?
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Huh I didn't know about that. Seems like it uses 8 symbols per bit to increase the range (but I would very seriously doubt you ever get close to 1km except in super ideal "both in a field in the middle of nowhere" scenarios that never actually happen. Apparently it's an optional part of Bluetooth 5, so not necessarily supported. However I just checked my phone (Pixel 8) and it is supported. You can check in the nRF C…
It falls quite close to the "super ideal scenarios" you described, but Nordic did a real world test and got a range of 1300 m using coded phy. https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/pos...
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The use cases stem from groups needing coordination in roughly the same area, with no internet. Disaster recovery efforts fit this exactly: Doctors Without Borders feeding centers in a famine far from anywhere, searching for people in the rubble of a building following an earthquake, searching for people in a refugee camp, etc. Verizon went down in the US this past week - perfect use case for Bitchat (or Meshtastic w…
Is this LoRa BT network thing something that actually exists? Is there a coverage map?