Bip39 How It Works. It is worth noting that a seed phrase grants use of your private keys. Whilst private keys are cumbersome to implement and come in a very string of 256 alphanumeric figures, seed phrases are usually twelve or 24 words long, and produced up of normal words. https://financex82581.wikigiogio.com/1107843/the_anatomy_of_the_bip39_phrase_entropy_text_and_protection