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package org.bouncycastle.crypto.test;
import org.bouncycastle.crypto.BlockCipher;
import org.bouncycastle.crypto.DataLengthException;
import org.bouncycastle.crypto.engines.NullEngine;
import org.bouncycastle.crypto.params.KeyParameter;
import org.bouncycastle.util.encoders.Hex;
import org.bouncycastle.util.test.SimpleTest;
public class NullTest
extends CipherTest
{
static SimpleTest[] tests =
{
new BlockCipherVectorTest(0, new NullEngine(),
new KeyParameter(Hex.decode("00")), "00", "00")
};
NullTest()
{
super(tests, new NullEngine(), new KeyParameter(new byte[2]));
}
public String getName()
{
return "Null";
}
public void performTest()
throws Exception
{
super.performTest();
BlockCipher engine = new NullEngine();
engine.init(true, null);
byte[] buf = new byte[1];
engine.processBlock(buf, 0, buf, 0);
if (buf[0] != 0)
{
fail("NullCipher changed data!");
}
byte[] shortBuf = new byte[0];
try
{
engine.processBlock(shortBuf, 0, buf, 0);
fail("failed short input check");
}
catch (DataLengthException e)
{
// expected
}
try
{
engine.processBlock(buf, 0, shortBuf, 0);
fail("failed short output check");
}
catch (DataLengthException e)
{
// expected
}
}
public static void main(
String[] args)
{
runTest(new NullTest());
}
}
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