wan-wns-namehash

A simple module for generating WNS namehashes per spec https://github.com/ethereum/EIPs/issues/137

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Wan WNS Namehash
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A javascript library for generating Wanchain Name Service (WNS) namehashes per spec.

Installation

npm install wan-wns-namehash -S

Usage

var namehash = require('wan-wns-namehash')
var hash = namehash.hash('foo.wan')
// '0xde9b09fd7c5f901e23a3f19fecc54828e9c848539801e86591bd9801b019f84f'

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

Security Warning

WNS Supports UTF-8 characters, and so many duplicate names are possible. For example:
  • faceboŠ¾k.wan
  • facebook.wan

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 installed).