Bip39 To Public Key Wallet Program that apply BIP39 only use 2048 iterations for a norm. Growing this parameter will improve protection from brute drive assault, but you need to store this new parameter. Use non-public keys at brainwallet.org, but be careful - it could be straightforward to make blunders https://www.youtube.com/channel/UCUpxfyTJ0fb78SQ55hU6OCw