Reference implementation of BIP-0039: Mnemonic code for generating deterministic keys
This BIP describes the implementation of a mnemonic code or mnemonic sentence -- a group of easy to remember words -- for the generation of deterministic wallets.
It consists of two parts: generating the mnenomic, and converting it into a binary seed. This seed can be later used to generate deterministic wallets using BIP-0032 or similar methods.
See https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki for full specification