# js-libp2p-noise

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> Noise libp2p handshake for js-libp2p

This repository contains TypeScript implementation of noise protocol, an encryption protocol used in libp2p.

##### Warning: Even though this package works in browser, it will bundle around 1.5Mb of code 

## Usage

Install with `yarn add libp2p-noise` or `npm i libp2p-noise`.

Example of using default noise configuration and passing it to the libp2p config:
```
import {NOISE, Noise} from "libp2p-noise"


//custom noise configuration, pass it instead of NOISE instance
const noise = new Noise(privateKey, Buffer.alloc(x));

const libp2p = new Libp2p({
   modules: {
     connEncryption: [NOISE],
   },
});
```

Where parameters for Noise constructor are:
 - *static Noise key* - (optional) existing private Noise static key
 - *early data* - (optional) an early data payload to be sent in handshake messages
 


## API

This module exposes a crypto interface, as defined in the repository [js-interfaces](https://github.com/libp2p/js-interfaces).

[» API Docs](https://github.com/libp2p/js-interfaces/tree/master/src/crypto#api)


## Contribute

Feel free to join in. All welcome. Open an issue!

[![](https://cdn.rawgit.com/jbenet/contribute-ipfs-gif/master/img/contribute.gif)](https://github.com/ipfs/community/blob/master/contributing.md)

## License

[MIT](LICENSE)