Bip39 date http://www.mediafire.com/file/uilrjfajg2ami24/pdf-14673-57158.pdf The last move of BIP-39 is developing the particular binary seed which happens to be then used for a grasp key in BIP-32 deterministic wallet or using other procedures. Thanks to the cryptographic style and design of BIP-39, a weak passphrase doesn't reduce the safety of the https://blogfreely.net/travenmdoq/create-your-own-distinct-bip39-mnemonic-expression-with-python-scripts