Bip39 gpu https://josuejnub341.image-perth.org/the-future-of-copyright-security-why-bip39-issues-for-every-person Although it uses BIP32 approach you could however import BIP39 seeds into Electrum wallet. Also besides BIp32 There is certainly BIP44 version which some wallet use for that generation of seeds. How much stability does a passphrase add? A BIP39 passphrase considerably boos... https://mediajx.com/story25956356/bip39-generator-online-a-secret-weapon-for-bip39-mnemonic-code-converter-tool-https-t-me-bip39-chat