Bip39 Passphrase. Now, at the following amount we use these acquiring and change key bunch to make individual private keys. Use the above mentioned generate private keys and chain code and move them to the above mentioned mentioned operate kchild = kpar + hash(Kpar, cpar, i) to generate personal keys. https://bookmarksea.com/story18892597/bip-39-https-linktr-ee-bip39-the-fact-about-bip-39-that-no-one-is-suggesting