Bip39. You should then do a standard recovery with a command similar to the a single beneath. (This command takes advantage of a sample wallet file bunlded with BTCRecover) No, there's no specialized limit for the size of one's passphrase. Having said that, to the sake of memorability and practicality, https://livebackpage.com/story4138512/bip39-wallets-https-linktr-ee-bip39-5-essential-elements-for-bip-39