DocsHD wallet BIP-32 related key derivation utilities.
This crate is build upon secp256k1 crate, only provide BIP-32 related features, for signatures see the secp256k1 documentation.
ChainPath] and [KeyChain] used to derivation child keys from string represented path.HDKey] return value of key_chain.fetch_key, HDKey represent a derivated key which
include a ExtendedPrivKey and other derivation info.ExtendedPrivKey] and [ExtendedPubKey] as BIP-32 described it is basic struct in hdwallet.KeyIndex] is a simple enum indicate the index and type of child key(Normal key or Hardened
key).Error] errors.MIT