/// <summary>
/// Computes 512 bit Bip39 seed.
/// passphrase, password, and passwordPrefix are converted to bytes using UTF8 KD normal form encoding.
/// </summary>
/// <param name="passphrase">arbitrary passphrase (typically mnemonic words with checksum but not necessarily)</param>
/// <param name="password">password and passwordPrefix are combined to generate salt bytes.</param>
/// <param name="passwordPrefix">password and passwordPrefix are combined to generate salt bytes. Default is "mnemonic".</param>
/// <returns>Computes 512 bit Bip39 seed.</returns>
public static KzUInt512 Bip39Seed(string passphrase, string password = null, string passwordPrefix = "mnemonic")
{
return(KzHashes.pbkdf2_hmac_sha512(passphrase.UTF8NFKDToBytes(), $"{passwordPrefix}{password}".UTF8NFKDToBytes(), 2048));
}
public static KzExtPrivKey GetMasterPrivKey(string seed, string seedExtension = null) =>
KzExtPrivKey.Master(KzHashes.pbkdf2_hmac_sha512(seed.UTF8ToBytes(), $"electrum{seedExtension}".UTF8ToBytes(), 2048).Span);