Structuring Networks with XOR

MaidSafe

A prerequisite to understanding the SAFE Network on a technical level, including the consensus process, requires knowledge of the underlying structure which powers it as a decentralized, autonomous system. Peer-to-peer networks can be categorised into two general types: structured and unstructured. In unstructured networks, there is no explicit organization of nodes and the process of joining and forming connections to others is random. In structured networks, like those which use a distributed hash table (DHT) such as Bittorrent or the SAFE Network, the overlay protocol includes a structure for organizing the network and makes purposeful connections to specific nodes more efficient.

One of the most widely adopted DHT’s, named Kademlia, was originally popularised through its implementation in Bittorrent’s Mainline DHT which removed dependence on central trackers for finding the locations of nodes and data stored on the network. Kademlia employs a rather simple operation called “exclusive or” (XOR) to establish…

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