The good thing is, in 2012 the developer Pieter Wuille developed the BIP32 specification at The bottom on the hierarchical deterministic wallets. Collectively with it, Pieter designed a mathematical function to make a learn vital from which to derive all other keys inside a deterministic way. This text explains BIP39, https://getsocialnetwork.com/story4391883/top-guidelines-of-bip39-word-list-pdf