hdkey

Bitcoin BIP32 hierarchical deterministic keys

hdkey

A JavaScript component for BIP32(hierarchical deterministic keys).

Thanks to the active BitcoinJS team and their hard work - some code borrowed from it.

npm i --save hdkey

example:

var HDKey = require('hdkey')
var seed = 'a0c42a9c3ac6abf2ba6a9946ae83af18f51bf1c9fa7dacc4c92513cc4dd015834341c775dcd4c0fac73547c5662d81a9e9361a0aac604a73a321bd9103bce8af'
var hdkey = HDKey.fromMasterSeed(new Buffer(seed, 'hex'))
console.log(mk.privateExtendedKey)
// => 'xprv9s21ZrQH143K2SKJK9EYRW3Vsg8tWVHRS54hAJasj1eGsQXeWDHLeuu5hpLHRbeKedDJM4Wj9wHHMmuhPF8dQ3bzyup6R7qmMQ1i1FtzNEW' 
console.log(mk.publicExtendedKey)
// => 'xpub661MyMwAqRbcEvPmRAmYndzERhyNux1GoHzHxgzVHMBFkCro3kbbCiDZZ5XabZDyXPj5mH3hktvkjhhUdCQxie5e1g4t2GuAWNbPmsSfDp2' 
  • https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/src/hdnode.js
  • http://bip32.org/
  • http://blog.richardkiss.com/?p=313
  • https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki
  • http://bitcoinmagazine.com/8396/deterministic-wallets-advantages-flaw/