public void Padding_TryGetThicknessTest()
{
PaddingStyle target = new PaddingStyle();
PDFThickness actual;
PDFThickness expected = PDFThickness.Empty();
bool result = target.TryGetThickness(out actual);
Assert.IsFalse(result);
Assert.AreEqual(expected, actual);
target.All = 12;
expected = new PDFThickness(12);
result = target.TryGetThickness(out actual);
Assert.IsTrue(result);
Assert.AreEqual(expected, actual);
target.Left = 13;
target.Right = 14;
target.Top = 15;
target.Bottom = 16;
expected = new PDFThickness(15, 14, 16, 13);
result = target.TryGetThickness(out actual);
Assert.IsTrue(result);
Assert.AreEqual(expected, actual);
target.RemoveAllValues();
expected = PDFThickness.Empty();
result = target.TryGetThickness(out actual);
Assert.IsFalse(result);
Assert.AreEqual(expected, actual);
}
public void Padding_AllTest()
{
PaddingStyle target = new PaddingStyle();
Assert.AreEqual(PDFUnit.Zero, target.All);
target.All = 20;
Assert.AreEqual((PDFUnit)20, target.All);
//These properties fall back to all
Assert.AreEqual((PDFUnit)20, target.Left);
Assert.AreEqual((PDFUnit)20, target.Top);
Assert.AreEqual((PDFUnit)20, target.Bottom);
Assert.AreEqual((PDFUnit)20, target.Right);
//Modify one and make sure the rest as still set
target.Bottom = 300;
Assert.AreEqual((PDFUnit)20, target.All);
Assert.AreEqual((PDFUnit)20, target.Left);
Assert.AreEqual((PDFUnit)20, target.Top);
Assert.AreEqual((PDFUnit)300, target.Bottom); //different
Assert.AreEqual((PDFUnit)20, target.Right);
target.RemoveAll();
Assert.AreEqual(PDFUnit.Zero, target.All);
Assert.AreEqual(PDFUnit.Zero, target.Left);
Assert.AreEqual(PDFUnit.Zero, target.Top);
Assert.AreEqual((PDFUnit)300, target.Bottom); //retained the separate value
Assert.AreEqual(PDFUnit.Zero, target.Right);
}
public void PDFPaddingStyleConstructorTest()
{
PaddingStyle target = new PaddingStyle();
Assert.IsNotNull(target);
Assert.AreEqual(StyleKeys.PaddingItemKey, target.ItemKey);
}
public void Padding_TopTest()
{
PaddingStyle target = new PaddingStyle();
Assert.AreEqual(PDFUnit.Zero, target.Top);
target.Top = 20;
Assert.AreEqual((PDFUnit)20, target.Top);
target.RemoveTop();
Assert.AreEqual(PDFUnit.Zero, target.Top);
}
public void Padding_RightTest()
{
PaddingStyle target = new PaddingStyle();
Assert.AreEqual(PDFUnit.Zero, target.Right);
target.Right = 20;
Assert.AreEqual((PDFUnit)20, target.Right);
target.RemoveRight();
Assert.AreEqual(PDFUnit.Zero, target.Right);
}
public void Padding_BottomTest()
{
PaddingStyle target = new PaddingStyle();
Assert.AreEqual(PDFUnit.Zero, target.Bottom);
target.Bottom = 20;
Assert.AreEqual((PDFUnit)20, target.Bottom);
target.RemoveBottom();
Assert.AreEqual(PDFUnit.Zero, target.Bottom);
}
public void Padding_SetThicknessTest()
{
PaddingStyle target = new PaddingStyle();
target.All = 12;
target.Left = 13;
target.Right = 14;
target.Top = 15;
target.Bottom = 16;
PDFThickness thickness = new PDFThickness(21, 22, 23, 24); //T,R,B,L
target.SetThickness(thickness);
Assert.AreEqual((PDFUnit)21, target.Top);
Assert.AreEqual((PDFUnit)24, target.Left);
Assert.AreEqual((PDFUnit)23, target.Bottom);
Assert.AreEqual((PDFUnit)22, target.Right);
}
public static byte[] Unpad(byte[] data, int blockSize, PaddingStyle paddingStyle)
{
switch (paddingStyle)
{
case PaddingStyle.None:
return(data);
case PaddingStyle.Pkcs7:
return(UnpadPkcs7(data, blockSize));
case PaddingStyle.AnsiX923:
return(UnpadAnsiX923(data, blockSize));
case PaddingStyle.Iso7816:
return(UnpadIso7816(data, blockSize));
case PaddingStyle.Iso10126:
return(UnpadIso10126(data, blockSize));
default:
throw new InvalidOperationException("Unknown padding style");
}
}
/// <summary>
/// Encrypt stream with Blowfish-CBC
/// </summary>
/// <param name="input">Input stream to encrypt</param>
/// <param name="output">Output stream</param>
/// <param name="key">Key</param>
/// <param name="iv">IV</param>
/// <param name="paddingStyle">Padding</param>
/// <param name="notifyProgression">Notify progression method</param>
/// <param name="bufferSize">Buffer size</param>
public static void EncryptCBC(Stream input, Stream output, byte[] key, byte[] iv, PaddingStyle paddingStyle = PaddingStyle.Pkcs7, Action <int> notifyProgression = null, int bufferSize = 4096)
{
IBufferedCipher cipher = new BufferedBlockCipher(new CbcBlockCipher(new BlowfishEngine()));
ParametersWithIV parameters = new ParametersWithIV(new KeyParameter(key, 0, key.Length), iv, 0, iv.Length);
cipher.Init(true, parameters);
bool padDone = false;
int bytesRead;
byte[] buffer = new byte[bufferSize];
byte[] enc = new byte[bufferSize];
do
{
bytesRead = input.Read(buffer, 0, bufferSize);
if (bytesRead == bufferSize)
{
cipher.ProcessBytes(buffer, enc, 0);
output.Write(enc, 0, bytesRead);
}
else if (bytesRead > 0)
{
byte[] smallBuffer = new byte[bytesRead];
Array.Copy(buffer, 0, smallBuffer, 0, bytesRead);
byte[] padData = Padding.Pad(smallBuffer, BLOCK_SIZE, paddingStyle);
cipher.ProcessBytes(padData, enc, 0);
output.Write(enc, 0, padData.Length);
padDone = true;
}
if (notifyProgression != null && bytesRead > 0)
{
notifyProgression(bytesRead);
}
} while (bytesRead == bufferSize);
if (!padDone)
{
buffer = new byte[0];
byte[] padData = Padding.Pad(buffer, BLOCK_SIZE, paddingStyle);
cipher.ProcessBytes(padData, enc, 0);
output.Write(enc, 0, padData.Length);
}
}
/// <summary>
/// Decrypt stream with Blowfish-CBC
/// </summary>
/// <param name="input">Input stream to decrypt</param>
/// <param name="output">Output stream</param>
/// <param name="key">Key</param>
/// <param name="iv">IV</param>
/// <param name="paddingStyle">Padding</param>
/// <param name="notifyProgression">Notify progression method</param>
/// <param name="bufferSize">Buffer size</param>
public static void DecryptCBC(Stream input, Stream output, byte[] key, byte[] iv, PaddingStyle paddingStyle = PaddingStyle.Pkcs7, Action <int> notifyProgression = null, int bufferSize = 4096)
{
IBufferedCipher cipher = new BufferedBlockCipher(new CbcBlockCipher(new BlowfishEngine()));
ParametersWithIV parameters = new ParametersWithIV(new KeyParameter(key, 0, key.Length), iv, 0, iv.Length);
cipher.Init(false, parameters);
byte[] backup = null;
int bytesRead;
byte[] buffer = new byte[bufferSize];
byte[] dec = new byte[bufferSize];
do
{
bytesRead = input.Read(buffer, 0, bufferSize);
if (bytesRead > 0)
{
if (backup != null)
{
output.Write(backup, 0, backup.Length);
backup = null;
}
if (bytesRead == bufferSize)
{
cipher.ProcessBytes(buffer, dec, 0);
backup = new byte[bytesRead];
Array.Copy(dec, 0, backup, 0, bytesRead);
}
else
{
dec = new byte[bytesRead];
byte[] smallBuffer = new byte[bytesRead];
Array.Copy(buffer, 0, smallBuffer, 0, bytesRead);
cipher.ProcessBytes(smallBuffer, dec, 0);
byte[] unpadData = Padding.Unpad(dec, BLOCK_SIZE, paddingStyle);
output.Write(unpadData, 0, unpadData.Length);
}
if (notifyProgression != null)
{
notifyProgression(bytesRead);
}
}
else
{
if (backup != null)
{
byte[] unpadData = Padding.Unpad(backup, BLOCK_SIZE, paddingStyle);
output.Write(unpadData, 0, unpadData.Length);
}
}
} while (bytesRead == bufferSize);
}
