public void FinishAuthentication_InvalidSignatureData()
{
var mockGenerateChallenge = new Mock <IGenerateFidoChallenge>();
mockGenerateChallenge.Setup(x => x.GenerateChallenge()).Returns(WebSafeBase64Converter.FromBase64String(TestVectors.ServerChallengeAuthBase64));
var fido = new FidoUniversalTwoFactor(mockGenerateChallenge.Object);
var deviceRegistration = CreateTestDeviceRegistration();
var startedAuthentication = fido.StartAuthentication(new FidoAppId(TestVectors.AppIdEnroll), deviceRegistration);
var signatureData = FidoSignatureData.FromWebSafeBase64(TestVectors.SignResponseDataBase64);
var signatureBytes = signatureData.Signature.ToByteArray();
signatureBytes[0] ^= 0xFF;
signatureData = new FidoSignatureData(
signatureData.UserPresence,
signatureData.Counter,
new FidoSignature(signatureBytes));
var authenticateResponse = new FidoAuthenticateResponse(
FidoClientData.FromJson(TestVectors.ClientDataAuth),
signatureData,
FidoKeyHandle.FromWebSafeBase64(TestVectors.KeyHandle));
Assert.Throws <InvalidOperationException>(() => fido.FinishAuthentication(startedAuthentication, authenticateResponse, deviceRegistration, TestVectors.TrustedDomains));
}
private static FidoDeviceRegistration CreateTestDeviceRegistration()
{
var cert = FidoAttestationCertificate.FromWebSafeBase64(TestVectors.AttestationCertificate);
var keyHandle = FidoKeyHandle.FromWebSafeBase64(TestVectors.KeyHandle);
var publicKey = FidoPublicKey.FromWebSafeBase64(TestVectors.PublicKeyBase64);
return(new FidoDeviceRegistration(keyHandle, publicKey, cert, 0));
}
internal static FidoAuthenticateResponse CreateGoodAuthenticateResponse()
{
var clientData = FidoClientData.FromJson(TestVectors.ClientDataAuth);
var signatureData = FidoSignatureData.FromBytes(TestVectors.AuthenticateResponse);
var keyHandle = FidoKeyHandle.FromWebSafeBase64(TestVectors.KeyHandle);
return(new FidoAuthenticateResponse(clientData, signatureData, keyHandle));
}
public void FinishAuthentication_Works()
{
var mockGenerateChallenge = new Mock <IGenerateFidoChallenge>();
mockGenerateChallenge.Setup(x => x.GenerateChallenge()).Returns(WebSafeBase64Converter.FromBase64String(TestVectors.ServerChallengeAuthBase64));
var fido = new FidoUniversalTwoFactor(mockGenerateChallenge.Object);
var deviceRegistration = CreateTestDeviceRegistration();
var startedAuthentication = fido.StartAuthentication(new FidoAppId(TestVectors.AppIdEnroll), deviceRegistration);
var authenticateResponse = new FidoAuthenticateResponse(
FidoClientData.FromJson(TestVectors.ClientDataAuth),
FidoSignatureData.FromWebSafeBase64(TestVectors.SignResponseDataBase64),
FidoKeyHandle.FromWebSafeBase64(TestVectors.KeyHandle));
fido.FinishAuthentication(startedAuthentication, authenticateResponse, deviceRegistration, TestVectors.TrustedDomains);
}
public void FinishAuthentication_UntrustedOrigin(string origin)
{
var mockGenerateChallenge = new Mock <IGenerateFidoChallenge>();
mockGenerateChallenge.Setup(x => x.GenerateChallenge()).Returns(WebSafeBase64Converter.FromBase64String(TestVectors.ServerChallengeAuthBase64));
var fido = new FidoUniversalTwoFactor(mockGenerateChallenge.Object);
var deviceRegistration = CreateTestDeviceRegistration();
var startedAuthentication = fido.StartAuthentication(new FidoAppId(TestVectors.AppIdEnroll), deviceRegistration);
var clientDataAuth = TestVectors.ClientDataAuth.Replace("origin\":\"http://example.com", "origin\":\"" + origin);
var authenticateResponse = new FidoAuthenticateResponse(
FidoClientData.FromJson(clientDataAuth),
FidoSignatureData.FromWebSafeBase64(TestVectors.SignResponseDataBase64),
FidoKeyHandle.FromWebSafeBase64(TestVectors.KeyHandle));
Assert.Throws <InvalidOperationException>(() => fido.FinishAuthentication(startedAuthentication, authenticateResponse, deviceRegistration, TestVectors.TrustedDomains));
}
public void FinishAuthentication_DifferentChallenge()
{
var mockGenerateChallenge = new Mock <IGenerateFidoChallenge>();
mockGenerateChallenge.Setup(x => x.GenerateChallenge()).Returns(WebSafeBase64Converter.FromBase64String(TestVectors.ServerChallengeAuthBase64));
var fido = new FidoUniversalTwoFactor(mockGenerateChallenge.Object);
var deviceRegistration = CreateTestDeviceRegistration();
var startedAuthentication = fido.StartAuthentication(new FidoAppId(TestVectors.AppIdEnroll), deviceRegistration);
var clientDataAuth = TestVectors.ClientDataAuth.Replace("challenge\":\"opsXqUifDriAAmWclinfbS0e-USY0CgyJHe_Otd7z8o", "challenge\":\"different");
var authenticateResponse = new FidoAuthenticateResponse(
FidoClientData.FromJson(clientDataAuth),
FidoSignatureData.FromWebSafeBase64(TestVectors.SignResponseDataBase64),
FidoKeyHandle.FromWebSafeBase64(TestVectors.KeyHandle));
Assert.Throws <InvalidOperationException>(() => fido.FinishAuthentication(startedAuthentication, authenticateResponse, deviceRegistration, TestVectors.TrustedDomains));
}
public ActionResult Login(LoginDeviceViewModel model)
{
model = model ?? new LoginDeviceViewModel();
try
{
if (!String.IsNullOrEmpty(model.RawAuthenticationResponse))
{
var u2f = new FidoUniversalTwoFactor();
var appId = new FidoAppId(Request.Url);
var deviceRegistration = GetFidoRepository().GetDeviceRegistrationsOfUser(GetCurrentUser()).FirstOrDefault(x => x.KeyHandle.ToWebSafeBase64() == model.KeyHandle);
if (deviceRegistration == null)
{
ModelState.AddModelError("", "Unknown key handle: " + model.KeyHandle);
return(View(new LoginDeviceViewModel()));
}
var challenge = model.Challenge;
var startedAuthentication = new FidoStartedAuthentication(appId, challenge,
FidoKeyHandle.FromWebSafeBase64(model.KeyHandle ?? ""));
var counter = u2f.FinishAuthentication(startedAuthentication, model.RawAuthenticationResponse, deviceRegistration, GetTrustedDomains());
// save the counter somewhere, the device registration of the next authentication should use this updated counter
//deviceRegistration.Counter = counter;
return(RedirectToAction("LoginSuccess"));
}
}
catch (Exception ex)
{
ModelState.AddModelError("", ex.GetType().Name + ": " + ex.Message);
}
return(View(model));
}
public void Equals_Null()
{
Assert.IsFalse(FidoKeyHandle.FromWebSafeBase64("").Equals(null));
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
return(FidoKeyHandle.FromWebSafeBase64(reader.Value.ToString()));
}
public IActionResult AuthenticateDevice(AuthenticateDeviceModel model)
{
if (App.CurrentUser == null)
{
return(BadRequest(new { error = "You must login.", code = 401 }));
}
if (model == null || string.IsNullOrEmpty(model.KeyHandle))
{
return(BadRequest(new { error = "Invalid device id.", code = 400 }));
}
var device = App.CurrentUser.Devices.FirstOrDefault(x => x.Identifier.Equals(model.KeyHandle));
if (device == null)
{
return(BadRequest(new { error = "Device not found.", code = 400 }));
}
var u2F = new FidoUniversalTwoFactor();
var deviceRegistration = FidoDeviceRegistration.FromJson(device.Data);
if (deviceRegistration == null)
{
return(BadRequest(new { error = "Unknown key handle.", code = 400 }));
}
var challenge = model.Challenge;
var startedAuthentication = new FidoStartedAuthentication(AppId, challenge, FidoKeyHandle.FromWebSafeBase64(model.KeyHandle ?? ""));
var facetIds = new List <FidoFacetId> {
new FidoFacetId(AppId.ToString())
};
var counter = u2F.FinishAuthentication(startedAuthentication, model.RawAuthenticateResponse, deviceRegistration, facetIds);
deviceRegistration.Counter = counter;
device.Usage++;
return(Ok(new { message = "Device has been authenticated.", code = 200, redirect = Url.Action("CurrentUser") }));
}