Bip39 To Bip32 Default amount of iterations Employed in wallets is 2048. Increasing this number ought to ensure it is safer from brute force assaults, having said that you will need to keep this price. To obtain your wallet with custom PBKDF2 it is best to use this script (or https://businessbookmark.com/story4030639/random-seed-phrase-generator-the-single-best-strategy-to-use-for-seed-phrase-generator