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Diffstat (limited to 'libjava/classpath/gnu/javax/crypto/jce/key/DESedeSecretKeyFactoryImpl.java')
-rw-r--r-- | libjava/classpath/gnu/javax/crypto/jce/key/DESedeSecretKeyFactoryImpl.java | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/javax/crypto/jce/key/DESedeSecretKeyFactoryImpl.java b/libjava/classpath/gnu/javax/crypto/jce/key/DESedeSecretKeyFactoryImpl.java new file mode 100644 index 00000000000..15e10994020 --- /dev/null +++ b/libjava/classpath/gnu/javax/crypto/jce/key/DESedeSecretKeyFactoryImpl.java @@ -0,0 +1,80 @@ +/* DESedeSecretKeyFactoryImpl.java -- DESede key factory. + Copyright (C) 2004, 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.key; + +import java.security.InvalidKeyException; +import java.security.spec.InvalidKeySpecException; +import java.security.spec.KeySpec; + +import javax.crypto.SecretKey; +import javax.crypto.spec.DESedeKeySpec; +import javax.crypto.spec.SecretKeySpec; + +public class DESedeSecretKeyFactoryImpl extends SecretKeyFactoryImpl +{ + + public DESedeSecretKeyFactoryImpl() + { + } + + protected SecretKey engineGenerateSecret (KeySpec spec) + throws InvalidKeySpecException + { + if (spec instanceof DESedeKeySpec) + return new SecretKeySpec (((DESedeKeySpec) spec).getKey(), "DESede"); + return super.engineGenerateSecret (spec); + } + + protected KeySpec engineGetKeySpec (SecretKey key, Class spec) + throws InvalidKeySpecException + { + if (spec.equals (DESedeKeySpec.class)) + try + { + return new DESedeKeySpec (key.getEncoded()); + } + catch (InvalidKeyException ike) + { + InvalidKeySpecException ikse = new InvalidKeySpecException + ("can't create DESede key spec"); + ikse.initCause (ike); + throw ikse; + } + return super.engineGetKeySpec (key, spec); + } +} |