Bip39 crate https://atavi.com/share/xbwf7vz16jgof While it employs BIP32 approach you can nevertheless import BIP39 seeds into Electrum wallet. Also besides BIp32 You can find BIP44 version which some wallet use with the generation of seeds. Thanks to the cryptographic design of BIP-39, a weak passphrase would not lessen the protection of https://www.bitsdujour.com/profiles/wWbptt