Bip39. The wallet handles the heavy lifting of changing the mnemonic words via a process of complicated hashing, salting, and checksum operations into a binary "seed," that is then used to generate the all-vital non-public and general public encryption keys. Seed phrase technology: These wallets can develop a BIP39 mnemonic https://triplexdirectory.com/listings13066400/bip39-online-https-linktr-ee-bip39-the-ultimate-guide-to-bip39-vs-slip39