public void UpdateCustomerPassword(string username, string oldPassword, string newPassword)
{
Customer customer = AuthoriseRequest();
if (customer.CustomerUsername == username)
{
if (PasswordHash.Hash(oldPassword, customer.Salt) != customer.CustomerPassword)
{
throw new ApplicationException("The existing password did not match when attempting a password update.");
}
else
{
logger.Debug("Updating customer password for " + customer.CustomerUsername);
//customer.CustomerPassword = newPassword;
// Hash the password.
string salt = PasswordHash.GenerateSalt();
customer.CustomerPassword = PasswordHash.Hash(newPassword, salt);
customer.Salt = salt;
CRMCustomerPersistor.Update(customer);
}
}
else
{
throw new ApplicationException("You are not authorised to update customer password for username " + username + ".");
}
}
//public async Task<IResponseModel> RegisterClientAsync(ClientModel model)
//{
// try
// {
// var client = new Client
// {
// Id = Guid.NewGuid(),
// Email = model.Email,
// ApiKey = Guid.NewGuid()
// };
// _db.Clients.Add(client);
// await _db.SaveChangesAsync();
// _response.Status = true;
// _response.Message = "Client registration successful.";
// return _response;
// }
// catch (Exception ex)
// {
// _response.Status = false;
// _response.Message = "Client registration error.";
// return _response;
// }
//}
//public async Task<ClientModel> VerifyClientAsync(ClientModel model)
//{
// try
// {
// var clientInfo = await _db.Clients.Where(u => u.Email == model.Email && u.ApiKey == model.ApiKey).SingleOrDefaultAsync();
// if (clientInfo == null) return null;
// return new ClientModel
// {
// Email = clientInfo.Email,
// ClientId = clientInfo.Id
// };
// }
// catch (Exception ex)
// {
// throw;
// }
//}
//public TokenModel GenerateJwt(ClientModel model)
//{
// var token = new JwtTokenBuilder(_config);
// return new TokenModel
// {
// AccessToken = token.GenerateToken(),
// Email = model.Email
// };
//}
#endregion
#region User Authentication
public async Task <IResponseModel> RegisterUserAsync(IUserModel model)
{
try
{
var salt = PasswordHash.GenerateSalt();
var passwordHash = PasswordHash.ComputeHash(model.Password, salt);
var user = new User
{
Id = Guid.NewGuid(),
//ClientId = ClientAppHelper.ClientApp,
Username = model.Username,
Password = Convert.ToBase64String(passwordHash),
Salt = Convert.ToBase64String(salt)
};
_db.Users.Add(user);
await _db.SaveChangesAsync();
_response.Status = true;
_response.Message = "User registration successful.";
return(_response);
}
catch (Exception ex)
{
_response.Status = false;
_response.Message = "User registration error.";
return(_response);
}
}
/// <summary>
/// Generates a new password Salt.
/// </summary>
/// <returns>New password Salt as a byte array.</returns>
public byte[] GetNewPasswordSalt()
{
byte[] Salt = PasswordHash.GenerateSalt();
//TPasswordHelper.LogByteArrayContents(Salt, "TPasswordHashingScheme_V1 - Salt");
return(Salt);
}
/// <summary>
/// Generate a new random key.
/// </summary>
/// <returns>A random key.</returns>
private static Key GenerateNewKey()
{
var keyPair = PublicKeyBox.GenerateKeyPair();
var key = new Key
{
KeyType = KeyType.Lageant,
PrivateKey = keyPair.PrivateKey,
PublicKey = keyPair.PublicKey,
KeyId = SodiumCore.GetRandomBytes(8),
KeySalt = PasswordHash.GenerateSalt(),
KeyNonce = PublicKeyBox.GenerateNonce()
};
return(key);
}
public string GenerateAdminPassword(Admin admin, Guid userId)
{
if (userId == null)
{
throw new Exception(ErrorConstants.REQUIRED_FIELD_EMPTY);
}
if (admin == null || admin.type != (int)BillingEnums.USER_TYPE.SUPER_ADMIN)
{
throw new Exception(ErrorConstants.NO_PREVILAGE);
}
try
{
var updateAdmin = GetAdminById(userId);
if (updateAdmin == null)
{
throw new Exception(ErrorConstants.ADMIN_NOT_FOUND);
}
var password = Guid.NewGuid().ToString().Replace("-", "").Substring(0, 10);
updateAdmin.salt = PasswordHash.GenerateSalt();
updateAdmin.password = PasswordHash.CreateHash(password, updateAdmin.salt);
var adminUpdate = new Dictionary <string, object>();
adminUpdate[ConstAdmin.SALT] = updateAdmin.salt;
adminUpdate[ConstAdmin.PASSWORD] = updateAdmin.password;
var elasticClient = GetElasticClient();
var updateResponse = elasticClient.Update <Admin, object>(u => u
.Index(ElasticMappingConstants.INDEX_NAME)
.Type(ElasticMappingConstants.TYPE_ADMIN)
.Id(updateAdmin.id.ToString())
.Doc(adminUpdate));
if (!updateResponse.RequestInformation.Success)
{
throw new Exception(ErrorConstants.PROBLEM_OCCURED_WHILE_GENERATING_PASSWORD);
}
return(password);
}
catch (Exception e)
{
throw e;
}
}
public void ChangePassword(string oldPassword, string newPassword)
{
Customer customer = this.ObjectContext.Customers.Where(x => x.Name == this.ServiceContext.User.Identity.Name).First();
if (PasswordHash.Hash(oldPassword, customer.Salt) != customer.CustomerPassword)
{
throw new ApplicationException("The old password was not correct. Password was not updated.");
}
else
{
//customer.CustomerPassword = newPassword;
string salt = PasswordHash.GenerateSalt();
customer.CustomerPassword = PasswordHash.Hash(newPassword, salt);
customer.Salt = salt;
this.ObjectContext.SaveChanges();
}
}
public async Task AccountService_RegisterUserAsync_Test()
{
try
{
using (db = new DatabaseContext(dbBuilder.Options))
{
var userModel = new UserModel
{
Username = null,
Password = "******",
FirstName = "Test",
LastName = "Test"
};
var salt = PasswordHash.GenerateSalt();
var passwordHash = PasswordHash.ComputeHash(userModel.Password, salt);
var user = new ApplicationUser
{
Id = Guid.NewGuid(),
ClientId = config["AppConfiguration:Audience"],
Email = userModel.Username,
Password = Convert.ToBase64String(passwordHash),
FirstName = userModel.FirstName,
LastName = userModel.LastName,
EmailConfirmed = false,
DateRegistered = DateTime.UtcNow,
Salt = Convert.ToBase64String(salt)
};
db.Users.Add(user);
var result = await db.SaveChangesAsync();
Assert.IsTrue(result == 1);
}
}
catch (Exception ex)
{
logService.Log("Register User", ex.InnerException.Message, ex.Message, ex.StackTrace);
Assert.Fail(ex.Message);
}
}
public void AddSuperAdmin()
{
var elasticClient = GetElasticClient();
var termFilter = new TermFilter()
{
Field = ConstAdmin.TYPE,
Value = (short)BillingEnums.USER_TYPE.SUPER_ADMIN
};
try
{
var response = elasticClient.Search <Admin>(a => a
.Index(ElasticMappingConstants.INDEX_NAME)
.Type(ElasticMappingConstants.TYPE_ADMIN)
.Filter(termFilter)
.Take(1));
if (response.Total == 0)
{
var salt = PasswordHash.GenerateSalt();
var admin = new Admin()
{
id = Guid.NewGuid(),
username = AppConstants.SUPER_ADMIN_USER_NAME,
salt = salt,
password = PasswordHash.CreateHash(AppConstants.SUPER_ADMIN_PASSWORD, salt),
type = (int)BillingEnums.USER_TYPE.SUPER_ADMIN,
created_at = DateTime.UtcNow
};
var create = elasticClient.Index <Admin>(admin, i => i
.Index(ElasticMappingConstants.INDEX_NAME)
.Type(ElasticMappingConstants.TYPE_ADMIN));
}
}
catch (Exception e)
{
Console.Error.WriteLine(e.GetBaseException().Message);
}
}
public async Task <IResponseModel> RegisterUserAsync(IUserModel model)
{
try
{
var salt = PasswordHash.GenerateSalt();
var passwordHash = PasswordHash.ComputeHash(model.Password, salt);
var user = new ApplicationUser
{
Id = Guid.NewGuid(),
ClientId = _config["AppConfiguration:Audience"],
Email = model.Username,
Password = Convert.ToBase64String(passwordHash),
FirstName = model.FirstName,
LastName = model.LastName,
EmailConfirmed = false,
DateRegistered = DateTime.UtcNow,
Salt = Convert.ToBase64String(salt)
};
_db.Users.Add(user);
await _db.SaveChangesAsync();
_response.Status = true;
_response.Message = "Registration Successful.";
return(_response);
}
catch (Exception ex)
{
_loggerService.Log("Register User", ex.InnerException.Message, ex.Message, ex.StackTrace);
_response.Status = false;
_response.Message = "Registration Error.";
return(_response);
}
}
public ActionResult Create(LOGIN newuser)
{
if (Request.IsAuthenticated)
{
using (trackerEntities db = new trackerEntities())
{
PasswordHash pass = new PasswordHash();
pass.Salt = pass.GenerateSalt();
newuser.userID = (int)TempData["u2"];
newuser.password = (string)TempData["pass"];
newuser.password = pass.GetHash(newuser.password, pass.Salt);
newuser.password_salt = Convert.ToBase64String(pass.Salt);
//int hash = newuser.password.GetHashCode();
//newuser.password_salt = hash; //password salt needs to be int ??
USER User = (USER)TempData["userModel"];
db.USERs.Add(User);
//db.SaveChanges();
if (User.user_type != "Volunteer")
{
PAID_STAFF pAID_STAFF = (PAID_STAFF)TempData["paidStaffModel"];
db.PAID_STAFF.Add(pAID_STAFF);
//db.SaveChanges();
}
db.LOGINs.Add(newuser);
db.SaveChanges();
}
ModelState.Clear();
ViewBag.SuccessMessage = "Registration Success!";
return(RedirectToAction("Index", "Home"));
}
else
{
return(RedirectToAction("Index", "Home"));
}
//return View("Create", new LOGIN());
}
public void TestGenerateSalt()
{
Assert.AreEqual(32, PasswordHash.GenerateSalt().Length);
}
static void Test()
{
Console.WriteLine("safe RNG");
foreach (var i in Enumerable.Range(0, 10))
{
Console.WriteLine(Convert.ToBase64String(GenerateRandomNumber(32)));;
}
const string message = "Secret message";
Console.WriteLine($"hashes of '{message}'");
Console.WriteLine($"MD5: {Convert.ToBase64String(CalculateMd5(Encoding.UTF8.GetBytes(message)))}");
Console.WriteLine($"SHA1: {Convert.ToBase64String(CalculateSha1(Encoding.UTF8.GetBytes(message)))}");
Console.WriteLine($"SHA256: {Convert.ToBase64String(CalculateSha256(Encoding.UTF8.GetBytes(message)))}");
Console.WriteLine($"SHA512: {Convert.ToBase64String(CalculateSha512(Encoding.UTF8.GetBytes(message)))}");
const string message2 = "Secret Message";
Console.WriteLine($"hashes of '{message2}'");
Console.WriteLine($"MD5: {Convert.ToBase64String(CalculateMd5(Encoding.UTF8.GetBytes(message2)))}");
Console.WriteLine($"SHA1: {Convert.ToBase64String(CalculateSha1(Encoding.UTF8.GetBytes(message2)))}");
Console.WriteLine($"SHA256: {Convert.ToBase64String(CalculateSha256(Encoding.UTF8.GetBytes(message2)))}");
Console.WriteLine($"SHA512: {Convert.ToBase64String(CalculateSha512(Encoding.UTF8.GetBytes(message2)))}");
Console.WriteLine($"HMACs of '{message}'");
var key = Hmac.GenerateKey();
Console.WriteLine($"HmacMd5: {Convert.ToBase64String(Hmac.ComputeHmacMd5(key, Encoding.UTF8.GetBytes(message)))}");
Console.WriteLine($"HmacSha1: {Convert.ToBase64String(Hmac.ComputeHmacSha1(key, Encoding.UTF8.GetBytes(message)))}");
Console.WriteLine($"HmacSha256: {Convert.ToBase64String(Hmac.ComputeHmacSha256(key, Encoding.UTF8.GetBytes(message)))}");
Console.WriteLine($"HmacSha512: {Convert.ToBase64String(Hmac.ComputeHmacSha512(key, Encoding.UTF8.GetBytes(message)))}");
Console.WriteLine("Hash password with salt");
const string password = "******";
var salt = PasswordHash.GenerateSalt();
Console.WriteLine($"Salt: {Convert.ToBase64String(salt)}");
Console.WriteLine(Convert.ToBase64String(PasswordHash.HashPasswordWithSalt(Encoding.UTF8.GetBytes(password), salt)));
Console.WriteLine("Hash same password with PBKDF2");
Console.WriteLine(Convert.ToBase64String(PasswordHash.HashPasswordPbkdf2(Encoding.UTF8.GetBytes(password), salt, 150_000)));
Console.WriteLine("DES example on 'Lorem Ipsum'");
const string messageSymmetric = "Lorem ispum dolor sit amet.";
var ivDes = GenerateRandomNumber(8);
var keyDes = GenerateRandomNumber(8);
var encryptedDes = EncryptDes(Encoding.UTF8.GetBytes(messageSymmetric), keyDes, ivDes);
var decryptedDes = DecryptDes(encryptedDes, keyDes, ivDes);
Console.WriteLine($"EncryptedDES: {Convert.ToBase64String(encryptedDes)}");
Console.WriteLine($"DecryptedDES: {Encoding.UTF8.GetString(decryptedDes)}");
Console.WriteLine("TripleDES example on Lorem Ipsum");
var keyTripleDes = GenerateRandomNumber(24);
var ivTripleDes = GenerateRandomNumber(8);
var encryptedTripleDes = EncryptTripleDes(Encoding.UTF8.GetBytes(messageSymmetric), keyTripleDes, ivTripleDes);
var decryptedTripleDes = DecryptTripleDes(encryptedTripleDes, keyTripleDes, ivTripleDes);
Console.WriteLine($"EncryptedTripleDES: {Convert.ToBase64String(encryptedTripleDes)}");
Console.WriteLine($"DecryptedTripleDES: {Encoding.UTF8.GetString(decryptedTripleDes)}");
Console.WriteLine("AES example on Lorem Ipsum");
var keyAes = GenerateRandomNumber(32);
var ivAes = GenerateRandomNumber(16);
var encryptedAes = EncryptAes(Encoding.UTF8.GetBytes(messageSymmetric), keyAes, ivAes);
var decryptedAes = DecryptAes(encryptedAes, keyAes, ivAes);
Console.WriteLine($"EncryptedAES: {Convert.ToBase64String(encryptedAes)}");
Console.WriteLine($"DecryptedAES: {Encoding.UTF8.GetString(decryptedAes)}");
Console.WriteLine("RSA in memory example on Lorem Ipsum");
var inMemoryAsymmetricOptions = new AsymmetricCryptoServiceOptions
{
KeySize = KeySize.KeySize2048,
};
var asymmetricInMemoryCryptoProvider = new AsymmetricCryptoServiceBuilder()
.WithOptions(inMemoryAsymmetricOptions).WithKeyStorageOption(KeyStorageOption.InMemory).Build();
var encryptedRsa = asymmetricInMemoryCryptoProvider.Encrypt(Encoding.UTF8.GetBytes(messageSymmetric));
var decryptedRsa = asymmetricInMemoryCryptoProvider.Decrypt(encryptedRsa);
Console.WriteLine($"Encrypted RSA: {Convert.ToBase64String(encryptedRsa)}");
Console.WriteLine($"Decrypted RSA: {Encoding.UTF8.GetString(decryptedRsa)}");
Console.WriteLine("RSA XML example on Lorem Ipsum");
var xmlAsymmetricOptions = new AsymmetricCryptoServiceOptions
{
KeySize = KeySize.KeySize2048,
XmlPrivateKeyFilePath = Path.Combine(Directory.GetCurrentDirectory(), "privateKey.xml"),
XmlPublicKeyFilePath = Path.Combine(Directory.GetCurrentDirectory(), "publicKey.xml"),
};
var asymmetricXmlCryptoProvider = new AsymmetricCryptoServiceBuilder()
.WithOptions(xmlAsymmetricOptions).WithKeyStorageOption(KeyStorageOption.InMemory).Build();
encryptedRsa = asymmetricXmlCryptoProvider.Encrypt(Encoding.UTF8.GetBytes(messageSymmetric));
decryptedRsa = asymmetricXmlCryptoProvider.Decrypt(encryptedRsa);
Console.WriteLine($"Encrypted RSA: {Convert.ToBase64String(encryptedRsa)}");
Console.WriteLine($"Decrypted RSA: {Encoding.UTF8.GetString(decryptedRsa)}");
Console.WriteLine("RSA CSP example on Lorem Ipsum");
var cspAsymmetricOptions = new AsymmetricCryptoServiceOptions
{
CspParameters = new CspParameters(1)
{
KeyContainerName = "AppliedCryptographyTest",
ProviderName = "Microsoft Strong Cryptographic Provider",
Flags = CspProviderFlags.UseMachineKeyStore,
},
KeySize = KeySize.KeySize2048,
};
var asymmetricCspCryptoProvider = new AsymmetricCryptoServiceBuilder().WithOptions(cspAsymmetricOptions)
.WithKeyStorageOption(KeyStorageOption.Csp).Build();
encryptedRsa = asymmetricCspCryptoProvider.Encrypt(Encoding.UTF8.GetBytes(messageSymmetric));
decryptedRsa = asymmetricCspCryptoProvider.Decrypt(encryptedRsa);
Console.WriteLine($"Encrypted RSA: {Convert.ToBase64String(encryptedRsa)}");
Console.WriteLine($"Decrypted RSA: {Encoding.UTF8.GetString(decryptedRsa)}");
Console.WriteLine("DigitalSignature InMemory example on LoremIpsum");
var digitalSignatureInMemoryOptions = new DigitalSignatureProviderOptions
{
HashAlgorithm = DigitalSignatureHashAlgorithm.SHA512,
KeySize = KeySize.KeySize2048,
};
var digitalSignatureInMemoryProvider = new DigitalSignatureProviderBuilder()
.WithOptions(digitalSignatureInMemoryOptions).WithKeyStorageOption(KeyStorageOption.InMemory).Build();
var signedHash = digitalSignatureInMemoryProvider.Sign(CalculateSha512(Encoding.UTF8.GetBytes(messageSymmetric)));
Console.WriteLine($"Signed hash: {Convert.ToBase64String(signedHash)}");
var compareHash = CalculateSha512(Encoding.UTF8.GetBytes(messageSymmetric));
Console.WriteLine($"Compare hashes: {digitalSignatureInMemoryProvider.Verify(signedHash, compareHash).ToString()}");
compareHash[0] = Byte.MaxValue;
Console.WriteLine($"Compare hashes with tapering: {digitalSignatureInMemoryProvider.Verify(signedHash, compareHash).ToString()}");
}
/// <summary>Generate a random salt for use with HashPassword. In addition to the random salt, the salt value
/// also contains the tuning parameters to use with the scrypt algorithm, as well as the size of the password
/// hash to generate.</summary>
/// <param name="saltLengthBytes">The number of bytes of random salt to generate. The goal for the salt is
/// to be unique. 16 bytes gives a 2^128 possible salt options, and roughly an N in 2^64 chance of a salt
/// collision for N salts, which seems reasonable. A larger salt requires more storage space, but doesn't
/// affect the scrypt performance significantly.</param>
/// <param name="N">CPU/memory cost parameter. Must be a value 2^N. 2^14 (16384) causes a calculation time
/// of approximately 50-70ms on 2010 era hardware; each successive value (eg. 2^15, 2^16, ...) should
/// double the amount of CPU time and memory required.</param>
/// <param name="r">scrypt 'r' tuning parameter</param>
/// <param name="p">scrypt 'p' tuning parameter (parallelization parameter); a large value of p can increase
/// computational cost of scrypt without increasing the memory usage.</param>
/// <param name="hashLengthBytes">The number of bytes to store the password hash in.</param>
public static string GenerateSalt(uint saltLengthBytes, ulong N, uint r, uint p, uint hashLengthBytes)
{
return(PasswordHash.GenerateSalt(saltLengthBytes, N, r, p, hashLengthBytes));
}
/// <summary>Generate a salt for use with HashPassword, selecting reasonable default values for scrypt
/// parameters that are appropriate for an interactive login verification workflow.</summary>
/// <remarks>Uses the default values in DefaultSaltLengthBytes, Default_N, Default_r, Default_r, and
/// DefaultHashLengthBytes.</remarks>
public static string GenerateSalt()
{
return(PasswordHash.GenerateSalt());
}
/// <summary>
/// Store/Export a key to file.
/// </summary>
public async void ExportKeyToFile()
{
MainViewError = string.Empty;
IsWorking = true;
string password;
if (SelectedKey != null)
{
var exportKey = new Key
{
PublicKey = SelectedKey.PublicKey,
PrivateKey = SelectedKey.PrivateKey,
KeyType = SelectedKey.KeyType,
KeyId = SelectedKey.KeyId ?? null,
KeySalt = SelectedKey.KeySalt ?? PasswordHash.GenerateSalt(),
KeyNonce = SelectedKey.KeyNonce ?? SecretBox.GenerateNonce()
};
var saveFileDialog = new SaveFileDialog
{
OverwritePrompt = true,
AddExtension = true,
DefaultExt = ".lkey"
};
if (exportKey.KeyId != null)
{
saveFileDialog.FileName = Utilities.BinaryToHex(exportKey.KeyId);
}
var result = saveFileDialog.ShowDialog();
if (result == true)
{
var filename = saveFileDialog.FileName;
try
{
var win = new PasswordInputViewModel {
DisplayName = "Enter a new protection password"
};
dynamic settings = new ExpandoObject();
settings.WindowStartupLocation = WindowStartupLocation.CenterOwner;
settings.Owner = GetView();
var inputOk = _windowManager.ShowDialog(win, null, settings);
if (inputOk == true)
{
password = win.UserPassword;
if (!string.IsNullOrEmpty(password))
{
var encryptionKey = await Task.Run(() =>
{
var tmpKey = new byte[32];
try
{
tmpKey = PasswordHash.ScryptHashBinary(Encoding.UTF8.GetBytes(password),
exportKey.KeySalt, PasswordHash.Strength.MediumSlow, 32);
}
catch (OutOfMemoryException)
{
MainViewError = "Could not export key (out of memory).";
}
catch (Exception)
{
MainViewError = "Could not export key.";
}
return(tmpKey);
}).ConfigureAwait(true);
if (encryptionKey != null)
{
exportKey.PrivateKey = SecretBox.Create(exportKey.PrivateKey, exportKey.KeyNonce,
encryptionKey);
using (var keyFileStream = File.OpenWrite(filename))
{
Serializer.SerializeWithLengthPrefix(keyFileStream, exportKey,
PrefixStyle.Base128,
0);
}
}
else
{
MainViewError = "Could not export key (missing encryption key?)";
}
}
else
{
MainViewError = "Could not export key (missing password)";
}
}
}
catch (Exception)
{
MainViewError = "Could not export key (failure)";
}
}
else
{
MainViewError = "Could not export key (missing password)";
}
}
IsWorking = false;
}
// When setting password
public string EncryptPassword(string password)
{
string hashedPassword = PasswordHash.HashPassword(password, PasswordHash.GenerateSalt());
return(hashedPassword);
}