Bip39 Ian Coleman. Now, at another stage we use these obtaining and change critical bunch to crank out individual personal keys. Use the above produce non-public keys and chain code and go them to the above mentioned described functionality kchild = kpar + hash(Kpar, cpar, i) to make personal keys. https://mnobookmarks.com/story19113105/bip39-wallets-https-linktr-ee-bip39-how-much-you-need-to-expect-you-ll-pay-for-a-good-ian-coleman-bip39