Bip39 Checksum. Because of the cryptographic design and style of BIP-39, a weak passphrase isn't going to reduce the protection of one other wallets or assistance expose the seed words. No, there isn't a complex limit to your duration of one's passphrase. Having said that, for your sake of memorability https://tealbookmarks.com/story19447756/bip39-passphrase-https-linktr-ee-bip39-not-known-details-about-bip39-list