Bip39 passphrase github https://telegra.ph/Producing-Custom-Bitcoin-Addresses-A-Take-A-Look-At-BIP39-Strategies-06-28 Despite the fact that it utilizes BIP32 method you could even now import BIP39 seeds into Electrum wallet. Also aside from BIp32 There's BIP44 Model which some wallet use for that technology of seeds. Due to the cryptographic structure of BIP-39, a weak passphrase isn'... https://thefairlist.com/story10705619/bip39-recovery-phrase-examine-this-report-on-bip39-vs-slip39-https-linktr-ee-bip39