Bip39 Words To Numbers Default range of iterations used in wallets is 2048. Escalating this range should help it become safer against brute power attacks, however you'll have to retail outlet this benefit. To access your wallet with custom made PBKDF2 you'll want to use this script (or comparable) to https://bookmarkcork.com/story19111691/seed-phrase-generator-and-balance-checker-bip39-an-overview