#tetcoin #framework #p2p #blockchain #crypto #cryptography

tet-libp2p-noise

Tetsy cryptographic handshake protocol using the noise framework

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1 unstable release

0.29.0 Mar 15, 2021

#239 in #tetcoin


Used in tet-libp2p

MIT license

535KB
9K SLoC

Noise protocol framework support for libp2p.

Note: This crate is still experimental and subject to major breaking changes both on the API and the wire protocol.

This crate provides tet_libp2p_core::InboundUpgrade and tet_libp2p_core::OutboundUpgrade implementations for various noise handshake patterns (currently IK, IX, and XX) over a particular choice of Diffie–Hellman key agreement (currently only X25519).

Note: Only the XX handshake pattern is currently guaranteed to provide interoperability with other libp2p implementations.

All upgrades produce as output a pair, consisting of the remote's static public key and a NoiseOutput which represents the established cryptographic session with the remote, implementing futures::io::AsyncRead and futures::io::AsyncWrite.

Usage

Example:

use tet_libp2p_core::{identity, Transport, upgrade};
use tet_libp2p_tcp::TcpConfig;
use tet_libp2p_noise::{Keypair, X25519Spec, NoiseConfig};

let id_keys = identity::Keypair::generate_ed25519();
let dh_keys = Keypair::<X25519Spec>::new().into_authentic(&id_keys).unwrap();
let noise = NoiseConfig::xx(dh_keys).into_authenticated();
let builder = TcpConfig::new().upgrade(upgrade::Version::V1).authenticate(noise);
// let transport = builder.multiplex(...);

Dependencies

~9–15MB
~303K SLoC