Bip39 library http://www.mediafire.com/file/uilrjfajg2ami24/pdf-14673-57158.pdf While it takes advantage of BIP32 strategy it is possible to however import BIP39 seeds into Electrum wallet. Also besides BIp32 There may be BIP44 version which some wallet use for the technology of seeds. Because of the cryptographic style of BIP-39, a weak passphrase won't reduce https://bookmarkcolumn.com/story20288037/bip39-word-list-json-rumored-buzz-on-bip39-generator-https-dzen-ru-bip39-phrase-com