copyright Wallet Seed Phrase Out Of Bip39 Default number of iterations used in wallets is 2048. Rising this range must ensure it is safer against brute drive assaults, nonetheless you'll need to store this price. To obtain your wallet with custom PBKDF2 you need to use this script (or equivalent) https://socialicus.com/story3924322/bip-39-seed-words-the-fact-about-bip39-that-no-one-is-suggesting