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package org.spongycastle.crypto.test;
import org.spongycastle.crypto.BlockCipher;
import org.spongycastle.crypto.BufferedBlockCipher;
import org.spongycastle.crypto.CipherParameters;
import org.spongycastle.util.encoders.Hex;
import org.spongycastle.util.test.SimpleTest;
/**
* a basic test that takes a cipher, key parameter, and an input
* and output string. This test wraps the engine in a buffered block
* cipher with padding disabled.
*/
public class BlockCipherVectorTest
extends SimpleTest
{
int id;
BlockCipher engine;
CipherParameters param;
byte[] input;
byte[] output;
public BlockCipherVectorTest(
int id,
BlockCipher engine,
CipherParameters param,
String input,
String output)
{
this.id = id;
this.engine = engine;
this.param = param;
this.input = Hex.decode(input);
this.output = Hex.decode(output);
}
public String getName()
{
return engine.getAlgorithmName() + " Vector Test " + id;
}
public void performTest()
throws Exception
{
BufferedBlockCipher cipher = new BufferedBlockCipher(engine);
cipher.init(true, param);
byte[] out = new byte[input.length];
int len1 = cipher.processBytes(input, 0, input.length, out, 0);
cipher.doFinal(out, len1);
if (!areEqual(out, output))
{
fail("failed - " + "expected " + new String(Hex.encode(output)) + " got " + new String(Hex.encode(out)));
}
cipher.init(false, param);
int len2 = cipher.processBytes(output, 0, output.length, out, 0);
cipher.doFinal(out, len2);
if (!areEqual(input, out))
{
fail("failed reversal got " + new String(Hex.encode(out)));
}
}
}
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