Champii / hashgraph

Hashgraph consensus in rust

hashgraph

Hashgraph consensus in rust

This is a work in progress.

This consensus protocol is liscensed by Swirlds for US citizens, you might want to check how to aquire that liscence.

I intend to modify that algorythm to match the one from MaidSafe that is free and open source: PARSEC

Usage

use hashgraph::{Key, Node, NodeConfig};

fn main() {
    let node = Node::new(Key::generate_new(), NodeConfig::default());

    let (tx_in, tx_out) = node.run();

    tx_in.send("Some transaction".to_string().into_bytes()).unwrap();

    loop {
        let res = tx_out.recv();

        println!("{:?}", String::from_utf8(res.unwrap()).unwrap());
    }
}

Features

• Gossip
• Event merge
• Hashgraph consensus
  • Ancestors
  • Self Ancestors
  • Strongly see
  • Witness
  • Round
  • Round Received
  • Virtual voting
  • Famous Witness
  • Consensus Timestamp
  • Break ties on same Consensus Timestamp (Median timestamp)
  • Break ties on same Consensus Timestamp (Signature XOR)
  • Transaction submit
  • Consensus Transaction output
  • Dynamic participants
    • Peer add
    • Peer Remove
• Caching for performances
• Sync
• Event Signature
• Implement the PARSEC specification instead of the Swirlds one
• Transaction validation
• Bad peer removal or punishement
• Node test