https://github.com/jamesmunns/distmsg

Energy Hack 2015 DistMsg Team
https://github.com/jamesmunns/distmsg

Last synced: 9 days ago
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Energy Hack 2015 DistMsg Team

• Host: GitHub
• URL: https://github.com/jamesmunns/distmsg
• Owner: jamesmunns
• Created: 2015-11-14T14:34:15.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2015-11-14T19:29:37.000Z (almost 9 years ago)
• Last Synced: 2024-10-09T07:10:39.304Z (30 days ago)
• Language: HTML
• Size: 0 Bytes
• Stars: 1
• Watchers: 5
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# DistMsg

DistMsg is a decentralized messaging protocol first prototyped at the Berlin Energy Hack Hackathon 2015

It is intended to bridge the gap in communications during a blackout event, or other similar catastrophe where normal communications (such as phone, SMS, and internet) will be lost.

## Vectors of communication

The entire network is made of two kinds of nodes, users and servers. In a typical case, a user node is typically a PC or Mobile Phone, running the DistMsg app. The User may have cell, bluetooth, or wifi radios. The Server node is typically a battery-backed PC, such as a Raspberry Pi, which may have cell, bluetooth, HAM (APRS), Satellite, or long range point-to-point communication abilities.

Connections can be made user-to-user, server-to-user, or server-to-server.

## Message Types

There are three supported message types:

* Peer to Peer - This is from one user to a specific other user

* Broadcast message - This is from one user to any other user in a given area

* Official message - This is a message from one official source (hospital, fire services, government aid, etc.)

These messages are transported from user to user, user to server, and server to server whenever a connection occurs. 

## Message Prioritization

Due to the limited space to store messages on a Phone, PC, or Server, messages are kept based on priority, age, and location fencing. This allows the amount of data transferred to be lightweight, while still providing the most benefit possible