Bip39 Mnemonic. Now, at the next level we use these receiving and alter key bunch to deliver person personal keys. Use the above mentioned generate private keys and chain code and pass them to the above stated function kchild = kpar + hash(Kpar, cpar, i) to produce specific keys. Just https://thebookmarklist.com/story19118019/bip39-list-https-linktr-ee-bip39-getting-my-bip39-passphrase-to-work