Kotlin Bip39 Default amount of iterations used in wallets is 2048. Raising this quantity need to enable it to be more secure versus brute force attacks, even so you'll need to retailer this price. To entry your wallet with tailor made PBKDF2 you should use this script (or very similar) https://bookmarkswing.com/story19937783/bip32-and-bip39-everything-about-bip39-phrase