// Expect NoSuchPaddingException
/// <exception cref="System.Exception"/>
public virtual void TestUpdateArguments()
{
Assume.AssumeTrue(OpensslCipher.GetLoadingFailureReason() == null);
OpensslCipher cipher = OpensslCipher.GetInstance("AES/CTR/NoPadding");
Assert.True(cipher != null);
cipher.Init(OpensslCipher.EncryptMode, key, iv);
// Require direct buffers
ByteBuffer input = ByteBuffer.Allocate(1024);
ByteBuffer output = ByteBuffer.Allocate(1024);
try
{
cipher.Update(input, output);
NUnit.Framework.Assert.Fail("Input and output buffer should be direct buffer.");
}
catch (ArgumentException e)
{
GenericTestUtils.AssertExceptionContains("Direct buffers are required", e);
}
// Output buffer length should be sufficient to store output data
input = ByteBuffer.AllocateDirect(1024);
output = ByteBuffer.AllocateDirect(1000);
try
{
cipher.Update(input, output);
NUnit.Framework.Assert.Fail("Output buffer length should be sufficient " + "to store output data"
);
}
catch (ShortBufferException e)
{
GenericTestUtils.AssertExceptionContains("Output buffer is not sufficient", e);
}
}
/// <exception cref="System.IO.IOException"/>
private void Process(ByteBuffer inBuffer, ByteBuffer outBuffer)
{
try
{
int inputSize = inBuffer.Remaining();
// OpensslCipher#update will maintain crypto context.
int n = cipher.Update(inBuffer, outBuffer);
if (n < inputSize)
{
contextReset = true;
cipher.DoFinal(outBuffer);
}
}
catch (Exception e)
{
throw new IOException(e);
}
}