Fortunately, in 2012 the developer Pieter Wuille established the BIP32 specification at The bottom of the hierarchical deterministic wallets. Together with it, Pieter made a mathematical function to produce a master crucial from which to derive all other keys in a very deterministic way. You might have a prospect of http://andersonsaeu988.iamarrows.com/from-mnemonics-to-safety-and-security-recognizing-bip39-passphrases-and-their-significance-in-copyright