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hdkey
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=====
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[](http://travis-ci.org/cryptocoinjs/hdkey)
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[](https://coveralls.io/r/cryptocoinjs/hdkey)
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A JavaScript component for [BIP32](https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki)(hierarchical deterministic keys).
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Thanks to the active BitcoinJS team and their hard work - some code borrowed from it.
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Installation
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------------
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npm i --save hdkey
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Usage
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-----
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**example:**
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```js
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var HDKey = require('hdkey')
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var seed = 'a0c42a9c3ac6abf2ba6a9946ae83af18f51bf1c9fa7dacc4c92513cc4dd015834341c775dcd4c0fac73547c5662d81a9e9361a0aac604a73a321bd9103bce8af'
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var hdkey = HDKey.fromMasterSeed(new Buffer(seed, 'hex'))
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console.log(mk.privateExtendedKey)
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// => 'xprv9s21ZrQH143K2SKJK9EYRW3Vsg8tWVHRS54hAJasj1eGsQXeWDHLeuu5hpLHRbeKedDJM4Wj9wHHMmuhPF8dQ3bzyup6R7qmMQ1i1FtzNEW'
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console.log(mk.publicExtendedKey)
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// => 'xpub661MyMwAqRbcEvPmRAmYndzERhyNux1GoHzHxgzVHMBFkCro3kbbCiDZZ5XabZDyXPj5mH3hktvkjhhUdCQxie5e1g4t2GuAWNbPmsSfDp2'
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```
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References
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----------
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- https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/src/hdnode.js
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- http://bip32.org/
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- http://blog.richardkiss.com/?p=313
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- https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki
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- http://bitcoinmagazine.com/8396/deterministic-wallets-advantages-flaw/
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