Bip39 implementation https://franciscougju442.bravesites.com/entries/general/Produce-Bitcoin-Addresses-from-Seed-Every-Little-Thing-You-Required-to-Know Checksum generation: A checksum is generated from this entropy working with SHA-256 hashing, which will help verify the mnemonic's integrity afterwards. The amount of safety does a passphrase increase? A BIP39 passphrase significantly... https://wildbookmarks.com/story20877512/unknown-bip39-wordlist-not-known-details-about-bip39-generator-https-www-youtube-com-channel-ucupxfytj0fb78sq55hu6ocw