Bip39 Bitcoin Core Default range of iterations used in wallets is 2048. Escalating this selection ought to ensure it is safer against brute power assaults, having said that you'll need to keep this worth. To accessibility your wallet with tailor made PBKDF2 you need to use this script (or similar) https://businessbookmark.com/story4151435/seed-phrase-generator-deutsch-the-fact-about-bip39-that-no-one-is-suggesting