Bip39 Passphrase. The wallet handles the hefty lifting of converting the mnemonic words by way of a strategy of intricate hashing, salting, and checksum operations into a binary "seed," which happens to be then used to crank out the all-significant private and community encryption keys. BIP32 and BIP44 are relevant https://seek-directory.com/listings13044684/bip39-online-https-linktr-ee-bip39-top-latest-five-bip39-mnemonic-urban-news