public CryptoTransformHelperTest()
{
var provider = new SymmetricAlgorithmProvider <RC2CryptoServiceProvider>(
new RC2KeyVectorProvider("P@ssw0rd", 40));
m_algorithm = provider.Create();
}
public void GetSymmetricAlgorithmProvider()
{
SymmetricCryptoProviderFactory factory = new SymmetricCryptoProviderFactory(context);
SymmetricAlgorithmProvider sym = (SymmetricAlgorithmProvider)factory.CreateSymmetricCryptoProvider("symmetricAlgorithm1");
Assert.IsNotNull(sym);
}
public static void TripleDES_Encrypt_Decrypt()
{
// Arrange
var algorithmProvider = new SymmetricAlgorithmProvider <TripleDESCryptoServiceProvider>(
new TripleDESKeyVectorProvider("sDE0#2x.4", 192));
// Act
Encrypt_Decrypt(algorithmProvider);
// Assert
}
public static void Rijndael_Encrypt_Decrypt()
{
// Arrange
var algorithmProvider = new SymmetricAlgorithmProvider <RijndaelManaged>(
new RijndaelKeyVectorProvider("sDE0#2x.4", 256));
// Act
Encrypt_Decrypt(algorithmProvider);
// Assert
}
public static void RC2_Encrypt_Decrypt()
{
// Arrange
var algorithmProvider = new SymmetricAlgorithmProvider <RC2CryptoServiceProvider>(
new RC2KeyVectorProvider("sDE0#2x.4", 128));
// Act
Encrypt_Decrypt(algorithmProvider);
// Assert
}
public void TripleDESEncryptAndDecrypt()
{
SymmetricAlgorithmProvider provider = new SymmetricAlgorithmProvider(TripleDESCryptoServiceProvider.Create(), key);
byte[] plaintext = new byte[] { 5, 4, 3, 2 };
byte[] ciphertext = provider.Encrypt(plaintext);
byte[] plaintext2 = provider.Decrypt(ciphertext);
Assert.IsFalse(CommonUtil.CompareBytes(plaintext, ciphertext));
Assert.IsTrue(CommonUtil.CompareBytes(plaintext, plaintext2));
}
/// <summary>
/// This method supports the Enterprise Library infrastructure and is not intended to be used directly from your code.
/// Builds a <see cref="SymmetricAlgorithmProvider"/> based on an instance of <see cref="SymmetricAlgorithmProviderData"/>.
/// </summary>
/// <seealso cref="SymmetricCryptoProviderCustomFactory"/>
/// <param name="context">The <see cref="IBuilderContext"/> that represents the current building process.</param>
/// <param name="objectConfiguration">The configuration object that describes the object to build. Must be an instance of <see cref="SymmetricAlgorithmProviderData"/>.</param>
/// <param name="configurationSource">The source for configuration objects.</param>
/// <param name="reflectionCache">The cache to use retrieving reflection information.</param>
/// <returns>A fully initialized instance of <see cref="SymmetricAlgorithmProvider"/>.</returns>
public ISymmetricCryptoProvider Assemble(IBuilderContext context, SymmetricProviderData objectConfiguration, IConfigurationSource configurationSource, ConfigurationReflectionCache reflectionCache)
{
SymmetricAlgorithmProviderData castedObjectConfiguration
= (SymmetricAlgorithmProviderData)objectConfiguration;
ISymmetricCryptoProvider createdObject
= new SymmetricAlgorithmProvider(
castedObjectConfiguration.AlgorithmType,
castedObjectConfiguration.ProtectedKeyFilename,
castedObjectConfiguration.ProtectedKeyProtectionScope);
return(createdObject);
}
public void SetUp()
{
nameFormatter = new AppDomainNameFormatter(applicationInstanceName);
instrumentationProvider = new SymmetricAlgorithmInstrumentationProvider(instanceName, true, true, nameFormatter);
formattedInstanceName = nameFormatter.CreateName(instanceName);
totalSymmetricDecryptionPerformedCounter = new EnterpriseLibraryPerformanceCounter(SymmetricAlgorithmInstrumentationProvider.counterCategoryName, SymmetricAlgorithmInstrumentationProvider.TotalSymmetricDecryptionPerformedCounterName, formattedInstanceName);
totalSymmetricEncryptionPerformedCounter = new EnterpriseLibraryPerformanceCounter(SymmetricAlgorithmInstrumentationProvider.counterCategoryName, SymmetricAlgorithmInstrumentationProvider.TotalSymmetricEncryptionPerformedCounterName, formattedInstanceName);
stream = CreateSymmetricKey();
provider = new SymmetricAlgorithmProvider(typeof(RijndaelManaged), stream, DataProtectionScope.CurrentUser, instrumentationProvider);
totalSymmetricDecryptionPerformedCounter.Clear();
totalSymmetricEncryptionPerformedCounter.Clear();
}
public void AESEncryptAndDecryptWithBadKey()
{
SymmetricAlgorithmProvider provider = new SymmetricAlgorithmProvider(key);
byte[] plaintext = new byte[] { 5, 4, 6, 2 };
byte[] ciphertext = provider.Encrypt(plaintext);
SymmetricAlgorithmProvider badProvider = new SymmetricAlgorithmProvider(new byte[] { 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 });
try
{
byte[] plaintext2 = badProvider.Decrypt(ciphertext);
Assert.IsFalse(CommonUtil.CompareBytes(plaintext, plaintext2));
}
catch (CryptographicException)
{
}
}
void CreateSymmetricAlgorithmProvider()
{
if (_SymmetricAlgorithmProvider != null)
{
return;
}
TechnicalException te;
if (string.IsNullOrEmpty(keyFileName))
{
keyFileName = System.Configuration.ConfigurationManager.AppSettings["CrypKeyFile"];
}
if (string.IsNullOrEmpty(keyFileName))
{
te = new TechnicalException("La clave de encriptacion no puede ser nula");
ExceptionHelper.SetTechnicalException <SymetriCypher <T> >(te);
te.ErrorId = "4401";
throw te;
}
if (!File.Exists(keyFileName))
{
te = new TechnicalException(string.Concat("La clave de encriptacion ", keyFileName, " no existe"));
ExceptionHelper.SetTechnicalException <SymetriCypher <T> >(te);
te.ErrorId = "4401";
throw te;
}
try
{
if (_SymmetricAlgorithmProvider == null)
{
_SymmetricAlgorithmProvider = new SymmetricAlgorithmProvider(typeof(T), keyFileName, DataProtectionScope.LocalMachine);
}
}
catch (Exception e)
{
te = new TechnicalException("Error al intentar crear SymmetricAlgorithmProvider ", e);
ExceptionHelper.SetTechnicalException <SymetriCypher <T> >(te);
te.ErrorId = "4400";
throw te;
}
}
public static string Encriptar(string texto, out Object keysimetric)
{
string result = "";
try
{
ProtectedKey key = KeyManager.GenerateSymmetricKey("System.Security.Cryptography.TripleDESCryptoServiceProvider", DataProtectionScope.LocalMachine);
SymmetricAlgorithmProvider provider = new SymmetricAlgorithmProvider(typeof(TripleDESCryptoServiceProvider), key);
result = Convert.ToBase64String(provider.Encrypt(UnicodeEncoding.Unicode.GetBytes(texto.ToCharArray(), 0, texto.Length)));
keysimetric = key;
//string decryptedData = UnicodeEncoding.Unicode.GetString(provider.Decrypt(Convert.FromBase64String(result)));
//var crypto = EnterpriseLibraryContainer.Current.GetInstance<CryptographyManager>();
//result = crypto.EncryptSymmetric(GetSymmProvider(), texto);
}
catch (Exception ex)
{
throw ex;
}
return(result);
}
public static string Desencriptar(string textoEncriptado)
{
string result = "";
try
{
string ruta = AppDomain.CurrentDomain.BaseDirectory + "\\" + ConfigurationManager.AppSettings["EntLibSymmProvider"];
ProtectedKey key = (ProtectedKey) new ManejadorArchivos().LeerKey(ruta);
SymmetricAlgorithmProvider provider = new SymmetricAlgorithmProvider(typeof(TripleDESCryptoServiceProvider), key);
result = UnicodeEncoding.Unicode.GetString(provider.Decrypt(Convert.FromBase64String(textoEncriptado)));
//ModifProtectedKeyFilename();
//var crypto = EnterpriseLibraryContainer.Current.GetInstance<CryptographyManager>();
//string clavesimetrica = GetSymmProvider();
//result = crypto.DecryptSymmetric(clavesimetrica, textoEncriptado);
}
catch (Exception ex)
{
throw ex;
}
return(result);
}
public void DecryptZeroBytes()
{
SymmetricAlgorithmProvider provider = new SymmetricAlgorithmProvider(key);
provider.Decrypt(new byte[0]);
}
public void DecryptNullBytes()
{
SymmetricAlgorithmProvider provider = new SymmetricAlgorithmProvider(key);
provider.Decrypt(null);
}
public void SetUp()
{
stream = CreateSymmetricKey();
provider = new SymmetricAlgorithmProvider(typeof(RijndaelManaged), stream, DataProtectionScope.CurrentUser);
}
public void SetUp()
{
stream = CreateSymmetricKey();
provider = new SymmetricAlgorithmProvider(typeof(RijndaelManaged), stream, DataProtectionScope.CurrentUser);
}
