Bip39 regex https://writeablog.net/ipennywpzc/the-ultimate-overview-to-offline-bip39-generators-remain-secure While it utilizes BIP32 method you could nevertheless import BIP39 seeds into Electrum wallet. Also besides BIp32 there is BIP44 Variation which some wallet use for your era of seeds. Due to the cryptographic structure of BIP-39, a weak passphrase isn't going to lessen the sec... https://sites2000.com/story9786926/bip39-entropy-to-mnemonic-top-latest-five-bip39-word-list-pdf-urban-news-https-cutt-ly-uryc5rw7