public IActionResult SignUp(mltSignUpViewModel mltSignUpViewModel)
{
string signPrivateKey = null, agreePrivateKey = null, signPublicKey = null, agreePublicKey = null;
Assets <UserCredAssetData> userAsset = _bigChainDbService.GetUserAssetFromTypeID(AssetType.Doctor, mltSignUpViewModel.CSMLSID);
if (userAsset != null)
{
ModelState.AddModelError("", "A Doctor profile with that MINC already exists");
return(View(mltSignUpViewModel));
}
var passphrase = mltSignUpViewModel.MLTKeyWord;
var password = mltSignUpViewModel.Password;
EncryptionService.getNewBlockchainUser(out signPrivateKey, out signPublicKey, out agreePrivateKey, out agreePublicKey);
var userAssetData = new UserCredAssetData
{
FirstName = mltSignUpViewModel.FirstName,
LastName = mltSignUpViewModel.LastName,
ID = mltSignUpViewModel.CSMLSID,
Email = mltSignUpViewModel.Email,
PrivateKeys = EncryptionService.encryptPrivateKeys(mltSignUpViewModel.CSMLSID, passphrase, signPrivateKey, agreePrivateKey),
DateOfRecord = DateTime.Now,
SignPublicKey = signPublicKey,
AgreePublicKey = agreePublicKey,
FingerprintData = new List <string>(),
};
var userMetadata = new UserCredMetadata
{
hashedPassword = EncryptionService.hashPassword(password)
};
var asset = new AssetSaved <UserCredAssetData>
{
Type = AssetType.MLT,
Data = userAssetData,
RandomId = _random.Next(0, 100000)
};
var metadata = new MetaDataSaved <UserCredMetadata>
{
data = userMetadata
};
_bigChainDbService.SendCreateTransactionToDataBase(asset, metadata, signPrivateKey);
return(RedirectToAction("Login"));
}
public IActionResult PatientSignUp(PatientSignUpViewModel patientSignUpViewModel)
{
// Description: Registers a patient up for a MedNet account
ViewBag.DoctorName = HttpContext.Session.GetString(Globals.currentUserName);
string signPrivateKey = null, agreePrivateKey = null, signPublicKey = null, agreePublicKey = null;
Assets <PatientCredAssetData> userAsset = _bigChainDbService.GetPatientAssetFromID(patientSignUpViewModel.PHN);
// Check if PHN is already in use
if (userAsset != null)
{
ModelState.AddModelError("", "A Patient profile with that PHN already exists");
return(View(patientSignUpViewModel));
}
// Register fingerprint information
int numScans = 5;
List <Image> fpList = FingerprintService.authenticateFP("24.84.225.22", numScans);
List <byte[]> fpdb = new List <byte[]>();
if (fpList.Count > numScans)
{
ModelState.AddModelError("", "Something went wrong with the fingerprint scan, try again.");
return(View(patientSignUpViewModel));
}
// Parse the input data for user registration
var passphrase = patientSignUpViewModel.KeyWord;
var password = patientSignUpViewModel.Password;
// Encrypt fingerprint data
List <string> encrList = new List <string>();
foreach (var fp in fpList)
{
byte[] fpByte = FingerprintService.imgToByte(fp);
string encrStr = EncryptionService.encryptFingerprintData(patientSignUpViewModel.PHN, passphrase, fpByte);
encrList.Add(encrStr);
}
// Create a user for the Blockchain
EncryptionService.getNewBlockchainUser(out signPrivateKey, out signPublicKey, out agreePrivateKey, out agreePublicKey);
// Create the user Asset
var userAssetData = new PatientCredAssetData
{
ID = patientSignUpViewModel.PHN,
DateOfBirth = patientSignUpViewModel.DateOfBirth,
PrivateKeys = EncryptionService.encryptPrivateKeys(patientSignUpViewModel.PHN, passphrase, signPrivateKey, agreePrivateKey),
DateOfRecord = DateTime.Now,
SignPublicKey = signPublicKey,
AgreePublicKey = agreePublicKey,
FingerprintData = encrList,
};
// Encrypt the user's password in the metadata
var userMetadata = new PatientCredMetadata
{
FirstName = patientSignUpViewModel.FirstName,
LastName = patientSignUpViewModel.LastName,
Email = patientSignUpViewModel.Email,
hashedPassword = EncryptionService.hashPassword(password)
};
// Save the user Asset and Metadata
var asset = new AssetSaved <PatientCredAssetData>
{
Type = AssetType.Patient,
Data = userAssetData,
RandomId = _random.Next(0, 100000)
};
var metadata = new MetaDataSaved <PatientCredMetadata>
{
data = userMetadata
};
// Send the user's information to the Blockchain database
_bigChainDbService.SendCreateTransactionToDataBase(asset, metadata, signPrivateKey);
return(RedirectToAction("PatientLookUp"));
}