mirror of git://gcc.gnu.org/git/gcc.git
123 lines
3.9 KiB
Java
123 lines
3.9 KiB
Java
/* ClientDHE_PSKParameters.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.nio.ByteBuffer;
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import java.nio.charset.Charset;
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/**
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* <pre>
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struct {
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select (KeyExchangeAlgorithm) {
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/* other cases for rsa, diffie_hellman, etc. */
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case diffie_hellman_psk: /* NEW */
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opaque psk_identity<0..2^16-1>;
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ClientDiffieHellmanPublic public;
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} exchange_keys;
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} ClientKeyExchange;</pre>
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*
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* @author Casey Marshall (csm@gnu.org)
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*/
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public class ClientDHE_PSKParameters extends ExchangeKeys implements Builder, Constructed
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{
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public ClientDHE_PSKParameters(ByteBuffer buffer)
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{
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super(buffer);
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}
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public ClientDHE_PSKParameters(String identity, ClientDiffieHellmanPublic dh)
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{
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super(null);
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Charset utf8 = Charset.forName("UTF-8");
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ByteBuffer idBuf = utf8.encode(identity);
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buffer = ByteBuffer.allocate(2 + idBuf.remaining() + dh.length());
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buffer.putShort((short) idBuf.remaining());
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buffer.put(idBuf);
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buffer.put(dh.buffer());
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buffer.rewind();
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}
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/* (non-Javadoc)
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* @see gnu.javax.net.ssl.provider.Builder#buffer()
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*/
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public ByteBuffer buffer()
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{
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return (ByteBuffer) buffer.duplicate().rewind().limit(length());
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}
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private int identityLength()
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{
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return (buffer.getShort(0) & 0xFFFF) + 2;
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}
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public String identity()
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{
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Charset utf8 = Charset.forName("UTF-8");
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return utf8.decode((ByteBuffer) buffer.duplicate().position(2).limit
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(identityLength())).toString();
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}
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/* (non-Javadoc)
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* @see gnu.javax.net.ssl.provider.Constructed#length()
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*/
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public int length()
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{
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int length = (buffer.getShort(0) & 0xFFFF) + 2;
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// XXX always explicit?
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length += (buffer.getShort(length) & 0xFFFF) + 2;
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return length;
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}
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public ClientDiffieHellmanPublic params()
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{
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return new ClientDiffieHellmanPublic(((ByteBuffer) buffer.duplicate()
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.position(identityLength()).limit(length())).slice());
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}
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/* (non-Javadoc)
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* @see gnu.javax.net.ssl.provider.Constructed#toString(java.lang.String)
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*/
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public String toString(String prefix)
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{
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// TODO Auto-generated method stub
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return null;
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}
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}
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