Bip39 Passphrase Default amount of iterations used in wallets is 2048. Raising this range ought to help it become more secure against brute force assaults, even so you will have to retailer this worth. To accessibility your wallet with custom made PBKDF2 you ought to use this script (or related) https://bookmarkpath.com/story18519067/bip39-passphrase-empty-for-none-examine-this-report-on-bip39-phrase