mirror of git://gcc.gnu.org/git/gcc.git
93 lines
3.3 KiB
Java
93 lines
3.3 KiB
Java
/* AESSpi.java --
|
|
Copyright (C) 2002, 2006 Free Software Foundation, Inc.
|
|
|
|
This file is a part of GNU Classpath.
|
|
|
|
GNU Classpath is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or (at
|
|
your option) any later version.
|
|
|
|
GNU Classpath 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
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU Classpath; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
|
|
USA
|
|
|
|
Linking this library statically or dynamically with other modules is
|
|
making a combined work based on this library. Thus, the terms and
|
|
conditions of the GNU General Public License cover the whole
|
|
combination.
|
|
|
|
As a special exception, the copyright holders of this library give you
|
|
permission to link this library with independent modules to produce an
|
|
executable, regardless of the license terms of these independent
|
|
modules, and to copy and distribute the resulting executable under
|
|
terms of your choice, provided that you also meet, for each linked
|
|
independent module, the terms and conditions of the license of that
|
|
module. An independent module is a module which is not derived from
|
|
or based on this library. If you modify this library, you may extend
|
|
this exception to your version of the library, but you are not
|
|
obligated to do so. If you do not wish to do so, delete this
|
|
exception statement from your version. */
|
|
|
|
|
|
package gnu.javax.crypto.jce.cipher;
|
|
|
|
import gnu.java.security.Registry;
|
|
import gnu.javax.crypto.jce.spec.BlockCipherParameterSpec;
|
|
|
|
import java.security.AlgorithmParameters;
|
|
import java.security.InvalidAlgorithmParameterException;
|
|
import java.security.InvalidKeyException;
|
|
import java.security.Key;
|
|
import java.security.SecureRandom;
|
|
import java.security.spec.AlgorithmParameterSpec;
|
|
import java.security.spec.InvalidParameterSpecException;
|
|
|
|
/**
|
|
* The implementation of the AES <i>Service Provider Interface</i> (<b>SPI</b>)
|
|
* adapter.
|
|
*/
|
|
public final class AESSpi
|
|
extends CipherAdapter
|
|
{
|
|
public AESSpi()
|
|
{
|
|
super(Registry.AES_CIPHER, 16);
|
|
}
|
|
|
|
protected void engineInit(int opmode, Key key, AlgorithmParameterSpec params,
|
|
SecureRandom random) throws InvalidKeyException,
|
|
InvalidAlgorithmParameterException
|
|
{
|
|
if (params instanceof BlockCipherParameterSpec)
|
|
{
|
|
if (((BlockCipherParameterSpec) params).getBlockSize() != 16)
|
|
throw new InvalidAlgorithmParameterException(
|
|
"AES block size must be 16 bytes");
|
|
}
|
|
super.engineInit(opmode, key, params, random);
|
|
}
|
|
|
|
protected void engineInit(int opmode, Key key, AlgorithmParameters params,
|
|
SecureRandom random) throws InvalidKeyException,
|
|
InvalidAlgorithmParameterException
|
|
{
|
|
AlgorithmParameterSpec spec = null;
|
|
try
|
|
{
|
|
if (params != null)
|
|
spec = params.getParameterSpec(BlockCipherParameterSpec.class);
|
|
}
|
|
catch (InvalidParameterSpecException ipse)
|
|
{
|
|
}
|
|
engineInit(opmode, key, spec, random);
|
|
}
|
|
}
|