https://github.com/valerio-vaccaro/disaster.share

Share long messages, file and Bitcoin transactions using disaster.radio mesh network.
https://github.com/valerio-vaccaro/disaster.share

Last synced: 3 months ago
JSON representation

Share long messages, file and Bitcoin transactions using disaster.radio mesh network.

• Host: GitHub
• URL: https://github.com/valerio-vaccaro/disaster.share
• Owner: valerio-vaccaro
• License: mit
• Created: 2020-07-24T20:14:59.000Z (almost 4 years ago)
• Default Branch: master
• Last Pushed: 2020-08-01T16:10:17.000Z (almost 4 years ago)
• Last Synced: 2024-01-18T12:44:27.741Z (6 months ago)
• Language: Python
• Size: 3.91 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Lists

• awesome-BTC-embedded - disaster.share

README

        
# Disaster.share

Share long messages, file and Bitcoin transactions using [disaster.radio]() mesh

 network.

The idea is to user a standard firmware to broadcast messages using the disaster radio lora mesh and create a layer on top of it able to broadcast multipart messages (bigger than maximum payload) with a check

This is just a prototype

## Protocol

The protocol is very simple, a long binary message will be converted in base64

and split in N chunks of MAX_SIZE (in our implementation 200 bytes).

Every chunk will be transmitted in a package with the following format:

`ID:HASH:M:N:PAYLOAD` where:

| Element| Size          | Description                                               |

|--------|---------------|-----------------------------------------------------------|

| ID     | variable size | is the magic number associated with the service           |

| HASH   | 4 bytes       | are the first 2 bytes in hex of the complete message hash |

| M      | variable size | is the progressive number of the chunk                    |

| N      | variable size | is the total number of chunks present in the message      |

The receiver will wait to receive all packages before print the complete message.

## Usage

Scripts are based on python language.

### Send a message

`python3 da-sender.py`

### Receive a message

`python3 da-receiver.py`