Ethereum Seed Phrase Generator Default range of iterations used in wallets is 2048. Expanding this amount must help it become more secure against brute power attacks, however you will have to keep this value. To obtain your wallet with customized PBKDF2 you need to use this script (or very similar) https://captainbookmark.com/story18953090/bip39-mnemonic-bip39-can-be-fun-for-anyone