/// <summary>
/// Initializes a new instance of <see cref="SymmetricEncryptionConfiguration"/> with default settings consisting of:
/// <see cref="SymmetricAlgorithmType.Aes"/> encryption using <see cref="System.Security.Cryptography.CipherMode.CBC"/> and <see cref="System.Security.Cryptography.PaddingMode.PKCS7"/>.
/// Plaintext strings are encoded using a UTF8 transform.
/// All other strings (ciphertext, key, and IV strings) are encoded using a hex transform.
/// </summary>
public SymmetricEncryptionConfiguration()
{
AlgorithmType = SymmetricAlgorithmType.Aes;
CipherMode = CipherMode.CBC;
PaddingMode = PaddingMode.PKCS7;
PlainTextTransform = StringTransform.FromEncoding(Encoding.UTF8);
CipherTextTransform = StringTransform.GetHexTransform();
KeyTransform = StringTransform.GetHexTransform();
IvTransform = StringTransform.GetHexTransform();
}
public void NoEncryptionTest()
{
var encryption = new SymmetricEncryptionService(
new SymmetricEncryptionConfiguration
{
AlgorithmType = SymmetricAlgorithmType.None,
PlainTextTransform = StringTransform.FromEncoding(Encoding.UTF8),
CipherTextTransform = StringTransform.FromEncoding(Encoding.UTF8)
}
);
const string inputString = InputStringTest;
var outputString = encryption.EncryptString(inputString, (string)null, null);
Assert.AreEqual(inputString, outputString, "Encrypted string was not equal to the input string.");
}
public void NoEncryptionTransformTest()
{
var encryption = new SymmetricEncryptionService(
new SymmetricEncryptionConfiguration
{
AlgorithmType = SymmetricAlgorithmType.None,
PlainTextTransform = StringTransform.FromEncoding(Encoding.UTF8),
CipherTextTransform = StringTransform.GetBase64Transform()
}
);
const string inputString = InputStringTest;
var encryptionOutput = encryption.EncryptString(inputString, (string)null, null);
var base64String = Convert.ToBase64String(Encoding.UTF8.GetBytes(inputString));
Assert.AreEqual(base64String, encryptionOutput, "Encrypted string was not equal to the base64 hash of the input string.");
}
public MainForm()
{
InitializeComponent();
cboPlainTextStringTransformType.Items.Clear();
cboCipherTextStringTransformType.Items.Clear();
// List of supported transforms
var stringTransformTypes = new[]
{
new StringTransformComboBoxItem("Default Encoding", StringTransform.FromEncoding(Encoding.Default)),
new StringTransformComboBoxItem("Base64", StringTransform.GetBase64Transform()),
new StringTransformComboBoxItem("Hex", StringTransform.GetHexTransform())
};
// Each combo box gets its own copy of the transform list
cboPlainTextStringTransformType.DataSource = new List <StringTransformComboBoxItem>(stringTransformTypes);
cboCipherTextStringTransformType.DataSource = new List <StringTransformComboBoxItem>(stringTransformTypes);
// Make sure we always select our first item
cboPlainTextStringTransformType.SelectedIndex = 0;
cboCipherTextStringTransformType.SelectedIndex = 0;
}
private SymmetricEncryptionService CreateEncryptionService2()
{
return(new SymmetricEncryptionService(
new SymmetricEncryptionConfiguration
{
AlgorithmType = GetAlgorithmType(),
CipherMode = GetCipherMode(),
PaddingMode = GetPaddingMode(),
PlainTextTransform = cboPlainTextStringTransformType.SelectedValue as IStringTransform,
CipherTextTransform = cboCipherTextStringTransformType.SelectedValue as IStringTransform,
IvTransform = chkIvIsHex.Checked ? StringTransform.GetHexTransform() : StringTransform.FromEncoding(Encoding.Default),
KeyTransform = chkKeyIsHex.Checked ? StringTransform.GetHexTransform() : StringTransform.FromEncoding(Encoding.Default)
}
));
}