/*
* JBoss, Home of Professional Open Source.
* Copyright 2013, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.test.integration.deployment.jcedeployment.provider;
import javax.crypto.BadPaddingException;
import javax.crypto.CipherSpi;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.ShortBufferException;
import java.security.AlgorithmParameters;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.Key;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.spec.AlgorithmParameterSpec;
/**
* @author <a href="mailto:istudens@redhat.com">Ivo Studensky</a>
*/
public class CipherAdapter extends CipherSpi {
DPCipher cipherInstance;
protected CipherAdapter(String cipherName) {
if (DummyProvider.DUMMY_CIPHER.equals(cipherName))
cipherInstance = new DummyCipher();
if (cipherInstance == null)
throw new InternalError("Unsupported cipher function " + cipherName + "!");
}
@Override
protected void engineSetMode(String mode) throws NoSuchAlgorithmException {
cipherInstance.setMode(mode);
}
@Override
protected void engineSetPadding(String padding) throws NoSuchPaddingException {
cipherInstance.setPadding(padding);
}
@Override
protected byte[] engineGetIV() {
return cipherInstance.getIV();
}
@Override
protected AlgorithmParameters engineGetParameters() {
return cipherInstance.getParameters();
}
@Override
protected int engineGetBlockSize() {
return cipherInstance.getBlockSize();
}
@Override
protected int engineGetOutputSize(int inputLen) {
return cipherInstance.getOutputSize(inputLen);
}
@Override
protected void engineInit(int opmode, Key key, SecureRandom secureRandom) throws InvalidKeyException {
cipherInstance.init(opmode, key, secureRandom);
}
@Override
protected void engineInit(int opmode, Key key, AlgorithmParameterSpec algorithmParameterSpec, SecureRandom secureRandom) throws InvalidKeyException, InvalidAlgorithmParameterException {
cipherInstance.init(opmode, key, algorithmParameterSpec, secureRandom);
}
@Override
protected void engineInit(int opmode, Key key, AlgorithmParameters algorithmParameters, SecureRandom secureRandom) throws InvalidKeyException, InvalidAlgorithmParameterException {
cipherInstance.init(opmode, key, algorithmParameters, secureRandom);
}
@Override
protected byte[] engineUpdate(byte[] input, int inputOffset, int inputLen) {
return cipherInstance.update(input, inputOffset, inputLen);
}
@Override
protected int engineUpdate(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset) throws ShortBufferException {
int result = engineGetOutputSize(inputLen);
if ((output.length - outputOffset) < result)
throw new ShortBufferException();
byte[] buf = engineUpdate(input, inputOffset, inputLen);
result = buf.length;
if ((output.length - outputOffset) < result)
throw new ShortBufferException();
System.arraycopy(buf, 0, output, outputOffset, result);
return result;
}
@Override
protected byte[] engineDoFinal(byte[] input, int inputOffset, int inputLen) throws IllegalBlockSizeException, BadPaddingException {
return cipherInstance.doFinal(input, inputOffset, inputLen);
}
@Override
protected int engineDoFinal(byte[] input, int inputOffset, int inputLen, byte[] output, int outputOffset) throws ShortBufferException, IllegalBlockSizeException, BadPaddingException {
int result = engineGetOutputSize(inputLen);
if ((output.length - outputOffset) < result)
throw new ShortBufferException();
byte[] buf = engineDoFinal(input, inputOffset, inputLen);
result = buf.length;
if ((output.length - outputOffset) < result)
throw new ShortBufferException();
System.arraycopy(buf, 0, output, outputOffset, result);
return result;
}
}