Bip39 Seed Phrase List Default quantity of iterations used in wallets is 2048. Rising this selection should ensure it is safer from brute power attacks, having said that you will have to keep this value. To obtain your wallet with custom PBKDF2 you need to use this script (or equivalent) https://olivebookmarks.com/story18615916/seed-phrase-generator-and-balance-checker-the-fact-about-bip39-phrase-that-no-one-is-suggesting