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Diffstat (limited to 'libjava/javax/crypto/SecretKeyFactory.java')
| -rw-r--r-- | libjava/javax/crypto/SecretKeyFactory.java | 247 |
1 files changed, 0 insertions, 247 deletions
diff --git a/libjava/javax/crypto/SecretKeyFactory.java b/libjava/javax/crypto/SecretKeyFactory.java deleted file mode 100644 index 0a63ef06745..00000000000 --- a/libjava/javax/crypto/SecretKeyFactory.java +++ /dev/null @@ -1,247 +0,0 @@ -/* SecretKeyFactory.java -- Factory for creating secret keys. - Copyright (C) 2004 Free Software Foundation, Inc. - -This file is 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, 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; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, 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 javax.crypto; - -import gnu.java.security.Engine; - -import java.lang.reflect.InvocationTargetException; -import java.security.InvalidKeyException; -import java.security.NoSuchAlgorithmException; -import java.security.NoSuchProviderException; -import java.security.Provider; -import java.security.Security; -import java.security.spec.InvalidKeySpecException; -import java.security.spec.KeySpec; - -/** - * A secret key factory translates {@link SecretKey} objects to and from - * {@link java.security.spec.KeySpec} objects, and can translate between - * different vendors' representations of {@link SecretKey} objects (for - * security or semantics; whichever applies). - * - * @author Casey Marshall (csm@gnu.org) - * @since 1.4 - * @see SecretKey - */ -public class SecretKeyFactory -{ - - // Constants and fields. - // ------------------------------------------------------------------------ - - private static final String SERVICE = "SecretKeyFactory"; - - /** The underlying factory implementation. */ - private SecretKeyFactorySpi skfSpi; - - /** The provider of the implementation. */ - private Provider provider; - - /** The name of the algorithm. */ - private String algorithm; - - // Constructor. - // ------------------------------------------------------------------------ - - /** - * Create a new secret key factory. - * - * @param skfSpi The underlying factory implementation. - * @param provider The provider. - * @param algorithm The algorithm name. - */ - protected SecretKeyFactory(SecretKeyFactorySpi skfSpi, Provider provider, - String algorithm) - { - this.skfSpi = skfSpi; - this.provider = provider; - this.algorithm = algorithm; - } - - // Class methods. - // ------------------------------------------------------------------------ - - /** - * Create a new secret key factory from the first appropriate - * instance. - * - * @param algorithm The algorithm name. - * @return The appropriate key factory, if found. - * @throws java.security.NoSuchAlgorithmException If no provider - * implements the specified algorithm. - */ - public static final SecretKeyFactory getInstance(String algorithm) - throws NoSuchAlgorithmException - { - Provider[] provs = Security.getProviders(); - for (int i = 0; i < provs.length; i++) - { - try - { - return getInstance(algorithm, provs[i]); - } - catch (NoSuchAlgorithmException nsae) - { - } - } - throw new NoSuchAlgorithmException(algorithm); - } - - /** - * Create a new secret key factory from the named provider. - * - * @param algorithm The algorithm name. - * @param provider The provider name. - * @return The appropriate key factory, if found. - * @throws java.security.NoSuchAlgorithmException If the named - * provider does not implement the algorithm. - * @throws java.security.NoSuchProviderException If the named provider - * does not exist. - */ - public static final SecretKeyFactory getInstance(String algorithm, - String provider) - throws NoSuchAlgorithmException, NoSuchProviderException - { - Provider p = Security.getProvider(provider); - if (p == null) - { - throw new NoSuchProviderException(provider); - } - return getInstance(algorithm, p); - } - - /** - * Create a new secret key factory from the specified provider. - * - * @param algorithm The algorithm name. - * @param provider The provider. - * @return The appropriate key factory, if found. - * @throws java.security.NoSuchAlgorithmException If the provider - * does not implement the algorithm. - */ - public static final SecretKeyFactory getInstance(String algorithm, - Provider provider) - throws NoSuchAlgorithmException - { - try - { - return new SecretKeyFactory((SecretKeyFactorySpi) - Engine.getInstance(SERVICE, algorithm, provider), - provider, algorithm); - } - catch (InvocationTargetException ite) - { - if (ite.getCause() == null) - throw new NoSuchAlgorithmException(algorithm); - if (ite.getCause() instanceof NoSuchAlgorithmException) - throw (NoSuchAlgorithmException) ite.getCause(); - throw new NoSuchAlgorithmException(algorithm); - } - catch (ClassCastException cce) - { - throw new NoSuchAlgorithmException(algorithm); - } - } - - // Instance methods. - // ------------------------------------------------------------------------ - - /** - * Generate a secret key from a key specification, if possible. - * - * @param keySpec The key specification. - * @return The secret key. - * @throws java.security.InvalidKeySpecException If the key specification - * cannot be transformed into a secret key. - */ - public final SecretKey generateSecret(KeySpec keySpec) - throws InvalidKeySpecException - { - return skfSpi.engineGenerateSecret(keySpec); - } - - /** - * Get the algorithm name. - * - * @return The algorithm name. - */ - public final String getAlgorithm() - { - return algorithm; - } - - /** - * Get the key specification from a secret key. - * - * @param key The secret key. - * @param keySpec The target key specification class. - * @return The key specification. - * @throws java.security.spec.InvalidKeySpecException If the secret key cannot - * be transformed into the specified key specification. - */ - public final KeySpec getKeySpec(SecretKey key, Class keySpec) - throws InvalidKeySpecException - { - return skfSpi.engineGetKeySpec(key, keySpec); - } - - /** - * Get the provider of this implementation. - * - * @return The provider. - */ - public final Provider getProvider() - { - return provider; - } - - /** - * Translate a secret key into another form. - * - * @param key The key to translate. - * @return The translated key. - * @throws java.security.InvalidKeyException If the argument cannot be - * translated. - */ - public final SecretKey translateKey(SecretKey key) - throws InvalidKeyException - { - return skfSpi.engineTranslateKey(key); - } -} |