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jeremybenn |
/* SSLv3HMacSHA.java --
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is a part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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USA
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.javax.net.ssl.provider;
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import java.security.InvalidAlgorithmParameterException;
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import java.security.InvalidKeyException;
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import java.security.Key;
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import java.security.spec.AlgorithmParameterSpec;
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import java.util.Collections;
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import java.util.Map;
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import javax.crypto.MacSpi;
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import javax.crypto.SecretKey;
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/**
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* @author csm
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*/
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public class SSLv3HMacSHAImpl extends MacSpi
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{
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private final SSLHMac adaptee;
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public SSLv3HMacSHAImpl()
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{
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adaptee = new SSLHMac("SHA-160");
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}
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/* (non-Javadoc)
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* @see javax.crypto.MacSpi#engineDoFinal()
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*/
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@Override protected byte[] engineDoFinal()
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{
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return adaptee.digest();
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}
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/* (non-Javadoc)
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* @see javax.crypto.MacSpi#engineGetMacLength()
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*/
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@Override protected int engineGetMacLength()
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{
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return adaptee.macSize();
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}
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/* (non-Javadoc)
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* @see javax.crypto.MacSpi#engineInit(java.security.Key, java.security.spec.AlgorithmParameterSpec)
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*/
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@Override protected void engineInit(Key key, AlgorithmParameterSpec params)
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throws InvalidAlgorithmParameterException, InvalidKeyException
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{
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if (!(key instanceof SecretKey)
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|| !key.getAlgorithm().equalsIgnoreCase("SSLv3HMac-SHA"))
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throw new InvalidKeyException("expecting secret key with algorithm \"SSLv3HMac-SHA\"");
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Map<String,byte[]> attr =
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Collections.singletonMap(SSLHMac.MAC_KEY_MATERIAL, key.getEncoded());
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adaptee.init(attr);
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}
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/* (non-Javadoc)
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* @see javax.crypto.MacSpi#engineReset()
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*/
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@Override protected void engineReset()
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{
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adaptee.reset();
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}
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/* (non-Javadoc)
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* @see javax.crypto.MacSpi#engineUpdate(byte)
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*/
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@Override protected void engineUpdate(byte input)
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{
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adaptee.update(input);
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}
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/* (non-Javadoc)
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* @see javax.crypto.MacSpi#engineUpdate(byte[], int, int)
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*/
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@Override protected void engineUpdate(byte[] input, int offset, int length)
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{
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adaptee.update(input, offset, length);
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}
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}
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