Independent of the internet, Ditto syncs data among peers by establishing sessions and forming a mesh network using all available network transports on a device. In this process, discovered peers create a presence graph by advertising and forming connections.
Much like a conventional city map with roads, the presence graph is like a guide for peers, helping them determine the shortest and fastest paths to route updates from point A to B.
If an intermediate peer becomes unavailable, the presence graph facilitates route updates, ensuring continuous connectivity similar to navigation apps like Google Maps. This flexibility allows the multihop links, established during the flood-fill process, to adapt as devices join and leave the mesh network.
The flood fill process, or flooding for short, involves propagating data across connected peers regardless of their queries. For more information, see Mesh Networking 101.
Represented by different colors in the following graphic, available transports establish multiple active connections simultaneously within the mesh:
Standard across all of Ditto's demo apps is the presence viewer.
The presence viewer, shown on the right, is a graphical user interface (GUI) built by Ditto that offers a realtime visualization of all connections within your mesh.
When you launch the viewer, you'll notice that the colors of the lines representing peer-to-peer connections are constantly changing to adapt to the most efficient transports available.
Ditto ensures the security of each connection — unlike Bluetooth, which lacks native security measures, Ditto provides end-user devices with certificates signed by a root certificate, allowing identification of connecting devices.
In addition, all connections are encrypted using Transport Layer Security (TLS) version 1.3.
Approval for NSA-level encryption through collaboration with the military is in progress and expected to be available later this year. For more information, contact Ditto. (See Human Support)