Bip39’s entropy to mnemonic https://list.ly/i/11078004 Checksum generation: A checksum is created from this entropy working with SHA-256 hashing, which allows verify the mnemonic's integrity later on. Due to the cryptographic structure of BIP-39, a weak passphrase doesn't lessen the protection of one other wallets or enable expose the seed words. https://bookmarklinking.com/story7623458/bip39-test-vectors-the-5-second-trick-for-bip39-compatible-wallet-https-t-me-bip39-chat