# Core CNS Namehash (Forked from ENS)

A javascript library for generating CoreDao Name Service (CNS) namehashes per [spec](https://github.com/ethereum/EIPs/issues/137).

[Available on NPM](https://www.npmjs.com/package/@cnsdomains/eth-ens-namehash)

## Installation

`npm install @cnsdomains/eth-ens-namehash -S`

## Usage

```javascript
var namehash = require("@cnsdomains/eth-ens-namehash");
var hash = namehash.hash("foo.core");

// Also supports normalizing strings to ENS compatibility:
var input = getUserInput();
var normalized = namehash.normalize(input);
```

## Security Warning

CNS Supports UTF-8 characters, and so many duplicate names are possible. For example:

- faceboоk.core
- facebook.core

The first one has non-ascii chars. (control+F on this page and search for facebook, only the second one will match).

namehash.normalize() doesn't automagically remap those, and so other precautions should be taken to avoid user phishing.

## Development

This module supports advanced JavaScript syntax, but exports an ES5-compatible module. To re-build the exported module after making changes, run `npm run bundle` (must have [browserify](http://browserify.org/) installed).