Bip39 Vs Bip84 Default variety of iterations Employed in wallets is 2048. Increasing this amount should help it become safer from brute power attacks, having said that you will have to keep this price. To access your wallet with custom made PBKDF2 you'll want to use this script (or similar) https://hubwebsites.com/story19906715/bip39-number-of-words-seed-phrase-generator-an-overview