/// <summary>
/// hash the password
/// </summary>
/// <param name="password"></param>
/// <returns></returns>
private byte[] HashPassword(string password)
{
//Org.BouncyCastle.Crypto.Digests.Sha3Digest sha = new Org.BouncyCastle.Crypto.Digests.Sha3Digest(512);
//this._Password = new byte[sha.GetByteLength()];
//sha.BlockUpdate(password.GetBytes(), 0, password.Length);
//sha.DoFinal(this._Password, 0);
//return this._Password;
Blake2b hash = new Blake2b(512);
//this._Password = new byte[sha.GetHashLength()];
//sha.Update(password);
//sha.DoFinal(this._Password, 0);
//return this._Password;
PBKDF2 pbkdf = new PBKDF2(hash, this._PasswordIteration);
return(pbkdf.Derive(password.GetBytes(), null, (this._PasswordIteration) * hash.GetHashLength()));
}