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Diffstat (limited to 'gcc-4.4.3/libjava/classpath/gnu/javax/crypto/jce/key/SecretKeyGeneratorImpl.java')
-rw-r--r-- | gcc-4.4.3/libjava/classpath/gnu/javax/crypto/jce/key/SecretKeyGeneratorImpl.java | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/jce/key/SecretKeyGeneratorImpl.java b/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/jce/key/SecretKeyGeneratorImpl.java deleted file mode 100644 index 257c0a243..000000000 --- a/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/jce/key/SecretKeyGeneratorImpl.java +++ /dev/null @@ -1,111 +0,0 @@ -/* SecretKeyGeneratorImpl.java -- symmetric key pair generator. - 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 gnu.javax.crypto.cipher.CipherFactory; -import gnu.javax.crypto.cipher.IBlockCipher; - -import java.security.InvalidAlgorithmParameterException; -import java.security.InvalidParameterException; -import java.security.SecureRandom; -import java.security.spec.AlgorithmParameterSpec; - -import java.util.Iterator; -import java.util.LinkedList; -import java.util.List; - -import javax.crypto.KeyGeneratorSpi; -import javax.crypto.SecretKey; -import javax.crypto.spec.SecretKeySpec; - -public class SecretKeyGeneratorImpl - extends KeyGeneratorSpi -{ - protected final int defaultKeySize; - protected final List keySizes; - protected final String algorithm; - protected boolean init; - protected int currentKeySize; - protected SecureRandom random; - - protected SecretKeyGeneratorImpl(final String algorithm) - { - this.algorithm = algorithm; - IBlockCipher cipher = CipherFactory.getInstance(algorithm); - if (cipher == null) - throw new IllegalArgumentException("no such cipher: " + algorithm); - defaultKeySize = cipher.defaultKeySize(); - keySizes = new LinkedList(); - for (Iterator it = cipher.keySizes(); it.hasNext();) - keySizes.add(it.next()); - init = false; - } - - protected SecretKey engineGenerateKey() - { - if (! init) - throw new IllegalStateException("not initialized"); - byte[] buf = new byte[currentKeySize]; - random.nextBytes(buf); - return new SecretKeySpec(buf, algorithm); - } - - protected void engineInit(AlgorithmParameterSpec params, SecureRandom random) - throws InvalidAlgorithmParameterException - { - throw new InvalidAlgorithmParameterException( - algorithm + " does not support algorithm paramaters"); - } - - protected void engineInit(int keySize, SecureRandom random) - { - keySize >>>= 3; // Use bytes. - if (! keySizes.contains(Integer.valueOf(keySize))) - throw new InvalidParameterException("unsupported key size: " + keySize - + ", valid sizes are: " + keySizes); - currentKeySize = keySize; - this.random = random; - init = true; - } - - protected void engineInit(SecureRandom random) - { - engineInit(defaultKeySize << 3, random); - } -} |