Bip39 Mnemonic Phrase Default variety of iterations Utilized in wallets is 2048. Raising this selection really should help it become more secure versus brute force attacks, nevertheless you'll have to retailer this price. To obtain your wallet with custom made PBKDF2 it is best to use this script (or related) https://socialwebconsult.com/story4083883/seed-phrase-generator-checker-the-fact-about-bip39-phrase-that-no-one-is-suggesting