Bip32 and bip39 http://www.mediafire.com/file/uilrjfajg2ami24/pdf-14673-57158.pdf Then again on average It will consider 50 percent enough time provided during the tables beneath for an attacker to obtain the proper passphrase Mainly because adding a passphrase in your seed words results in a completely new wallet, some other passphrase you enter (such as https://atavi.com/share/xbwf7vz16jgof