public async Task CipheredEncryption_EncryptsAndDecrypts_WithCustomKeyAndIv()
{
string exampleKey = null;
string exampleIv = null;
using (var aes = Aes.Create())
{
exampleKey = Convert.ToBase64String(aes.Key);
exampleIv = Convert.ToBase64String(aes.IV);
}
var pwd = "password";
var encrypted = await pwd.ToEncryptedSecureString(exampleKey, exampleIv);
var keyBytes = Convert.FromBase64String(exampleKey);
var ivBytes = Convert.FromBase64String(exampleIv);
Assert.NotNull(encrypted);
Assert.NotNull(encrypted.String);
Assert.AreNotEqual(pwd, encrypted.String.ToClearText());
Assert.AreEqual(keyBytes, encrypted.Key);
Assert.AreEqual(ivBytes, encrypted.IV);
var clearEncryptedCipher = encrypted.String.ToClearText();
var encryptedCipher = clearEncryptedCipher.ToSecureString();
var secureStr = new EncryptedSecureString(encryptedCipher, key: keyBytes, iv: ivBytes);
var decrypted = await secureStr.ToDecryptedSecureString();
Assert.NotNull(decrypted);
Assert.NotNull(decrypted.ToClearText());
Assert.AreEqual(pwd, decrypted.ToClearText());
}
public void CanAssignStringValue()
{
var encryptedSecString = new EncryptedSecureString();
TestDelegate testDelegate = () => encryptedSecString.SetValue(_clearTextData);
Assert.DoesNotThrow(testDelegate);
}
public void EncryptedValueIsSameAsOriginalValue()
{
var encryptedSecString = new EncryptedSecureString();
encryptedSecString.SetValue(_clearTextData);
var decryptedData = encryptedSecString.GetClearTextValue();
Assert.That(decryptedData, Is.EqualTo(_clearTextData));
}
/// <summary>
/// Decrypts an encrypted SecureString thats been ciphered in base64
/// </summary>
/// <param name="encryptedSecureStr">the encrypted SecureString thats been ciphered in base64</param>
/// <returns>a decrypted non-ciphered read-only SecureString</returns>
public static async Task <SecureString> ToDecryptedSecureString(this EncryptedSecureString encryptedSecureStr)
{
var ciphered = new NetworkCredential("", encryptedSecureStr.String).Password;
var encrypted = Convert.FromBase64String(ciphered);
using (var aes = Aes.Create())
{
aes.Key = encryptedSecureStr.Key;
aes.IV = encryptedSecureStr.IV;
return(await Adapter.Decrypt(encrypted, aes.Key, aes.IV));
}
}
public void CreatingMultipleEncryptedSecureStrings()
{
var encString1 = new EncryptedSecureString();
encString1.SetValue(_clearTextData);
var encString2 = new EncryptedSecureString();
encString2.SetValue("somevalue");
var decryptedString = encString1.GetClearTextValue();
Assert.That(decryptedString, Is.EqualTo(_clearTextData));
}
