BIP39 has turned out to become One of the more broadly-used BIPs, and It can be now applied by quite a few wallet makers, and used for a lot of more cryptocurrencies than just Bitcoin. Case (a) is helpful if you have a mnemonic sentence which includes an invalid checksum and you need to use it wi

Entropy is a complicated attribute. Your mnemonic could be insecure if this feature is applied incorrectly. Examine a lot more Entropy Instead of storing entropy, store the mnemonic produced through the entropy. Steganography could be helpful when storing the mnemonic. The random mnemonic generat