| /* SSLCipherSuite.java -- an SSL cipher suite. |
| Copyright (C) 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.net.ssl; |
| |
| import gnu.java.security.Engine; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.nio.ByteBuffer; |
| import java.security.NoSuchAlgorithmException; |
| import java.security.Provider; |
| import java.security.Security; |
| |
| /** |
| * An SSL cipher suite. |
| */ |
| public abstract class SSLCipherSuite |
| { |
| private static final String SERVICE = "SSLCipherSuite"; |
| private final String algorithm; |
| private final byte[] id; |
| private final SSLProtocolVersion version; |
| private Provider provider; |
| |
| protected SSLCipherSuite (final String algorithm, final byte[] id, |
| final SSLProtocolVersion version) |
| { |
| this.algorithm = algorithm; |
| if (id.length != 2) |
| throw new IllegalArgumentException ("cipher suite ID must be two bytes"); |
| this.id = (byte[]) id.clone (); |
| this.version = version; |
| } |
| |
| public static final SSLCipherSuite getInstance (SSLProtocolVersion version, byte[] id) |
| throws NoSuchAlgorithmException |
| { |
| return getInstance (version + "-" + ((id[0] & 0xFF) + "/" + (id[1] & 0xFF))); |
| } |
| |
| public static final SSLCipherSuite getInstance (SSLProtocolVersion version, |
| byte[] id, Provider provider) |
| throws NoSuchAlgorithmException |
| { |
| return getInstance (version + "-" + (id[0] & 0xFF) + "/" + (id[1] & 0xFF), provider); |
| } |
| |
| public static final SSLCipherSuite getInstance (String name) |
| throws NoSuchAlgorithmException |
| { |
| Provider[] providers = Security.getProviders (); |
| for (int i = 0; i < providers.length; i++) |
| { |
| try |
| { |
| return getInstance (name, providers[i]); |
| } |
| catch (NoSuchAlgorithmException nsae) |
| { |
| // Ignore. |
| } |
| } |
| |
| throw new NoSuchAlgorithmException (SERVICE + ": " + name); |
| } |
| |
| public static final SSLCipherSuite getInstance (String name, Provider provider) |
| throws NoSuchAlgorithmException |
| { |
| SSLCipherSuite suite = null; |
| try |
| { |
| suite = (SSLCipherSuite) Engine.getInstance (SERVICE, name, provider); |
| suite.provider = provider; |
| } |
| catch (InvocationTargetException ite) |
| { |
| // XXX |
| NoSuchAlgorithmException nsae = new NoSuchAlgorithmException (name); |
| nsae.initCause (ite); |
| throw nsae; |
| } |
| return suite; |
| } |
| |
| public final String getAlgorithm () |
| { |
| return algorithm; |
| } |
| |
| public final byte[] getId () |
| { |
| return (byte[]) id.clone (); |
| } |
| |
| public final Provider getProvider () |
| { |
| return provider; |
| } |
| |
| public final SSLProtocolVersion getProtocolVersion () |
| { |
| return version; |
| } |
| |
| public abstract void encipher (ByteBuffer in, ByteBuffer out); |
| } |