hdkey A JavaScript component for BIP32(hierarchical deterministic keys). Thanks to the active BitcoinJS team and their hard work - some code borrowed from it. References 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/