public void Init(string label, Authenticator.SecretKeyLength keyLength)
{
_initialized = true;
_googleAuthenticator = new GoogleAuthenticator(label, Authenticator.GenerateKey(keyLength));
txtOTPSecret.Text = _googleAuthenticator.Secret;
GenerateQRCode();
}
/// <summary>
/// Create a new instance of otpSettings
/// </summary>
/// <param name="password"></param>
/// <returns>Password hash</returns>
public string Create(string password, Authenticator.SecretKeyLength keyLength)
{
using (var randomNumberGenerator = RandomNumberGenerator.Create())
{
byte[] salt1Bytes = new byte[SaltByteLength];
byte[] salt2Bytes = new byte[SaltByteLength];
byte[] passwordBytes = GeneralConverters.GetByteArrayFromString(password);
randomNumberGenerator.GetBytes(salt1Bytes);
randomNumberGenerator.GetBytes(salt2Bytes);
PasswordHash = CreatePasswordHash(salt1Bytes, salt2Bytes, passwordBytes);
_otpSettings = new OTPSettings(Authenticator.GenerateKey(keyLength), salt1Bytes, salt2Bytes);
Initialized = true;
return(PasswordHash);
}
}
private void btnGenerateSharedSecret_Click(object sender, EventArgs e)
{
if (txtOTPLabel.Text.Length == 0)
{
MessageBox.Show("Label is missing!");
return;
}
Authenticator.SecretKeyLength keyLengthEnumVal = Authenticator.SecretKeyLength.n16Bytes;
if (rb24.Checked)
{
keyLengthEnumVal = Authenticator.SecretKeyLength.n24Bytes;
}
else if (rb32.Checked)
{
keyLengthEnumVal = Authenticator.SecretKeyLength.n32bytes;
}
createAndVerifyOTP1.Init(txtOTPLabel.Text, keyLengthEnumVal);
}
