Re:Firechat and nearby communication
by wfunction on Sunday October 05, 2014 @09:30PM
(#8413987)
How are you supposed to verify with FireChat who sent the message when you don't have an internet connection though? Are you supposed to route your (presumably encrypted) request through other (presumably connected) phones? What's the point of requiring an account when the their entire selling point is that you can use the app in places with no internet access at all, like the wilderness?
[ Parent
| on HN ]
This is easy to implement using cryptography. E.g. when firechat assigns a username, they sign your certificate for said username using their key.
Then, when sending messages, they have to be signed with your key (or outright encrypted), and the receiver verifies the key is correctly signed using firechat's key.