public void Constructor(DPAPIKeyType keyType)
{
string plainText = GenerateClearText();
var engine = new DPAPIEngine(keyType);
string encrypted = engine.Encrypt(plainText);
string decrypted = engine.Decrypt(encrypted);
Assert.NotEqual(plainText, encrypted);
Assert.NotEqual(encrypted, decrypted);
Assert.Equal(plainText, decrypted);
}
public void SetEntropyString(DPAPIKeyType keyType)
{
string plainText = GenerateClearText();
var engine = new DPAPIEngine(keyType)
.SetEntropy("myEntropy");
string encrypted = engine.Encrypt(plainText);
string decrypted = engine.Decrypt(encrypted);
Assert.NotEqual(plainText, encrypted);
Assert.NotEqual(encrypted, decrypted);
Assert.Equal(plainText, decrypted);
}
public void SetEntropySecureString(DPAPIKeyType keyType)
{
string plainText = GenerateClearText();
var entropy = new SecureString();
foreach (char ch in "myEntropy")
{
entropy.AppendChar(ch);
}
var engine = new DPAPIEngine(keyType)
.SetEntropy(entropy);
string encrypted = engine.Encrypt(plainText);
string decrypted = engine.Decrypt(encrypted);
Assert.NotEqual(plainText, encrypted);
Assert.NotEqual(encrypted, decrypted);
Assert.Equal(plainText, decrypted);
}
public void SetEncoding(DPAPIKeyType keyType, Encodings encodingType)
{
Encoding encoding = null;
switch (encodingType)
{
//case Encodings.None:
case Encodings.ASCII :
encoding = Encoding.ASCII;
break;
case Encodings.UTF7 :
encoding = Encoding.UTF7;
break;
case Encodings.UTF8 :
encoding = Encoding.UTF8;
break;
}
var engine = new DPAPIEngine(keyType)
.SetEncoding(encoding);
byte[] plainText = encoding.GetBytes(GenerateClearText());
byte[] encrypted = engine.Encrypt(plainText);
byte[] decrypted = engine.Decrypt(encrypted);
Assert.NotEqual(plainText, encrypted);
Assert.NotEqual(encrypted, decrypted);
Assert.Equal(plainText, decrypted);
}
public void Failures(DPAPIKeyType keyType)
{
string plainText = GenerateClearText();
var engine = new DPAPIEngine(keyType);
string badEncrypt = Convert.ToBase64String(Encoding.UTF8.GetBytes(plainText));
Assert.Throws<CryptographicException>(() =>
{
engine.Decrypt(badEncrypt);
});
}