Bip39 Passphrase. Now, at the next degree we use these receiving and change critical bunch to generate particular person non-public keys. Use the above mentioned make non-public keys and chain code and go them to the above described operate kchild = kpar + hash(Kpar, cpar, i) to produce unique keys. https://thesocialcircles.com/story4733276/bip39-wallet-https-linktr-ee-bip39-getting-my-ian-coleman-bip39-to-work