Bip39 Bits Default variety of iterations used in wallets is 2048. Escalating this variety need to ensure it is more secure from brute pressure attacks, even so you will need to store this price. To accessibility your wallet with custom made PBKDF2 you should use this script (or equivalent) to https://todaybookmarks.com/story18708188/bip39-mnemonic-seed-phrase-generator-not-known-details-about-bip39-word-list