Bip39 Lib Default range of iterations used in wallets is 2048. Escalating this amount really should enable it to be more secure from brute drive assaults, however you'll have to retail store this benefit. To access your wallet with customized PBKDF2 you ought to use this script (or very similar) https://listfav.com/story19983593/bip39-offline-not-known-factual-statements-about-bip39-word-list