Electrum Seed Phrase Generator Wallet application that put into action BIP39 only use 2048 iterations as a norm. Rising this parameter will improve protection towards brute drive attack, but you will need to store this new parameter. Use private keys at brainwallet.org, but watch out - it might be easy https://freedirectory4u.com/listings13003136/bip39-trust-wallet-the-5-second-trick-for-bip39