/// <summary>
/// Sets hybrid Bip32 / Bip39 private key.
/// Uses only a single Bip32 style use of HMACSHA512 starting with at least 32 bytes of Bip39 entropy from mnemonicWords.
/// </summary>
/// <param name="mnemonicWords">Must be at least 32 bytes of Bip39 mnemonic word entropy with valid checksum.</param>
/// <param name="required">if not null, each key path will be verified as valid on the generated key or returns null.</param>
/// <param name="hmacKey">Default is current global Kz.MasterBip32Key which may default to "Bitcoin seed".</param>
/// <returns>Returns this key unless required key paths aren't valid for generated key.</returns>
public KzExtPrivKey SetMasterBip32(string mnemonicWords, IEnumerable <KzKeyPath> required = null, string hmacKey = null)
{
var e = KzMnemonic.FromWords(mnemonicWords).Entropy;
if (e == null || e.Length < 32)
{
throw new ArgumentException($"{nameof(mnemonicWords)} must provide at least 32 bytes of BIP39 mnemonic entropy.");
}
return(SetMasterBip32(e, required, hmacKey));
}
public KzExtPrivKey SetMaster(string passPhrase, IEnumerable <KzKeyPath> required = null)
{
var e = KzMnemonic.FromWords(passPhrase).Entropy;
if (e == null || e.Length < 32)
{
throw new ArgumentException($"{nameof(passPhrase)} must provide at least 32 bytes of BIP39 mnemonic entropy.");
}
return(SetMaster(e, required));
}