Bip39 Compatible Non Custodial Wallet Default number of iterations used in wallets is 2048. Raising this quantity need to make it more secure from brute pressure attacks, however you'll have to store this price. To access your wallet with custom made PBKDF2 you should use this script (or equivalent) to https://geniusbookmarks.com/story18621955/bip39-conversion-sheet-bip39-can-be-fun-for-anyone