/* * Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */package sun.security.provider;import java.util.*;import java.lang.*;import java.security.Key;import java.security.PublicKey;import java.security.PrivateKey;import java.security.KeyFactorySpi;import java.security.InvalidKeyException;import java.security.AccessController;import java.security.PrivilegedAction;import java.security.interfaces.DSAParams;import java.security.spec.DSAPublicKeySpec;import java.security.spec.DSAPrivateKeySpec;import java.security.spec.KeySpec;import java.security.spec.InvalidKeySpecException;import java.security.spec.X509EncodedKeySpec;import java.security.spec.PKCS8EncodedKeySpec;import sun.security.action.GetPropertyAction;/** * This class implements the DSA key factory of the Sun provider. * * @author Jan Luehe * * * @since 1.2 */public class DSAKeyFactory extends KeyFactorySpi { // package private for DSAKeyPairGenerator static final boolean SERIAL_INTEROP; private static final String SERIAL_PROP = "sun.security.key.serial.interop"; static { /** * Check to see if we need to maintain interoperability for serialized * keys between JDK 5.0 -> JDK 1.4. In other words, determine whether * a key object serialized in JDK 5.0 must be deserializable in * JDK 1.4. * * If true, then we generate sun.security.provider.DSAPublicKey. * If false, then we generate sun.security.provider.DSAPublicKeyImpl. * * By default this is false. * This incompatibility was introduced by 4532506. */ String prop = AccessController.doPrivileged (new GetPropertyAction(SERIAL_PROP, null)); SERIAL_INTEROP = "true".equalsIgnoreCase(prop); } /** * Generates a public key object from the provided key specification * (key material). * * @param keySpec the specification (key material) of the public key * * @return the public key * * @exception InvalidKeySpecException if the given key specification * is inappropriate for this key factory to produce a public key. */ protected PublicKey engineGeneratePublic(KeySpec keySpec) throws InvalidKeySpecException { try { if (keySpec instanceof DSAPublicKeySpec) { DSAPublicKeySpec dsaPubKeySpec = (DSAPublicKeySpec)keySpec; if (SERIAL_INTEROP) { return new DSAPublicKey(dsaPubKeySpec.getY(), dsaPubKeySpec.getP(), dsaPubKeySpec.getQ(), dsaPubKeySpec.getG()); } else { return new DSAPublicKeyImpl(dsaPubKeySpec.getY(), dsaPubKeySpec.getP(), dsaPubKeySpec.getQ(), dsaPubKeySpec.getG()); } } else if (keySpec instanceof X509EncodedKeySpec) { if (SERIAL_INTEROP) { return new DSAPublicKey (((X509EncodedKeySpec)keySpec).getEncoded()); } else { return new DSAPublicKeyImpl (((X509EncodedKeySpec)keySpec).getEncoded()); } } else { throw new InvalidKeySpecException ("Inappropriate key specification"); } } catch (InvalidKeyException e) { throw new InvalidKeySpecException ("Inappropriate key specification: " + e.getMessage()); } } /** * Generates a private key object from the provided key specification * (key material). * * @param keySpec the specification (key material) of the private key * * @return the private key * * @exception InvalidKeySpecException if the given key specification * is inappropriate for this key factory to produce a private key. */ protected PrivateKey engineGeneratePrivate(KeySpec keySpec) throws InvalidKeySpecException { try { if (keySpec instanceof DSAPrivateKeySpec) { DSAPrivateKeySpec dsaPrivKeySpec = (DSAPrivateKeySpec)keySpec; return new DSAPrivateKey(dsaPrivKeySpec.getX(), dsaPrivKeySpec.getP(), dsaPrivKeySpec.getQ(), dsaPrivKeySpec.getG()); } else if (keySpec instanceof PKCS8EncodedKeySpec) { return new DSAPrivateKey (((PKCS8EncodedKeySpec)keySpec).getEncoded()); } else { throw new InvalidKeySpecException ("Inappropriate key specification"); } } catch (InvalidKeyException e) { throw new InvalidKeySpecException ("Inappropriate key specification: " + e.getMessage()); } } /** * Returns a specification (key material) of the given key object * in the requested format. * * @param key the key * * @param keySpec the requested format in which the key material shall be * returned * * @return the underlying key specification (key material) in the * requested format * * @exception InvalidKeySpecException if the requested key specification is * inappropriate for the given key, or the given key cannot be processed * (e.g., the given key has an unrecognized algorithm or format). */ protected <T extends KeySpec> T engineGetKeySpec(Key key, Class<T> keySpec) throws InvalidKeySpecException { DSAParams params; try { if (key instanceof java.security.interfaces.DSAPublicKey) { // Determine valid key specs Class<?> dsaPubKeySpec = Class.forName ("java.security.spec.DSAPublicKeySpec"); Class<?> x509KeySpec = Class.forName ("java.security.spec.X509EncodedKeySpec"); if (dsaPubKeySpec.isAssignableFrom(keySpec)) { java.security.interfaces.DSAPublicKey dsaPubKey = (java.security.interfaces.DSAPublicKey)key; params = dsaPubKey.getParams(); return (T) new DSAPublicKeySpec(dsaPubKey.getY(), params.getP(), params.getQ(), params.getG()); } else if (x509KeySpec.isAssignableFrom(keySpec)) { return (T) new X509EncodedKeySpec(key.getEncoded()); } else { throw new InvalidKeySpecException ("Inappropriate key specification"); } } else if (key instanceof java.security.interfaces.DSAPrivateKey) { // Determine valid key specs Class<?> dsaPrivKeySpec = Class.forName ("java.security.spec.DSAPrivateKeySpec"); Class<?> pkcs8KeySpec = Class.forName ("java.security.spec.PKCS8EncodedKeySpec"); if (dsaPrivKeySpec.isAssignableFrom(keySpec)) { java.security.interfaces.DSAPrivateKey dsaPrivKey = (java.security.interfaces.DSAPrivateKey)key; params = dsaPrivKey.getParams(); return (T) new DSAPrivateKeySpec(dsaPrivKey.getX(), params.getP(), params.getQ(), params.getG()); } else if (pkcs8KeySpec.isAssignableFrom(keySpec)) { return (T) new PKCS8EncodedKeySpec(key.getEncoded()); } else { throw new InvalidKeySpecException ("Inappropriate key specification"); } } else { throw new InvalidKeySpecException("Inappropriate key type"); } } catch (ClassNotFoundException e) { throw new InvalidKeySpecException ("Unsupported key specification: " + e.getMessage()); } } /** * Translates a key object, whose provider may be unknown or potentially * untrusted, into a corresponding key object of this key factory. * * @param key the key whose provider is unknown or untrusted * * @return the translated key * * @exception InvalidKeyException if the given key cannot be processed by * this key factory. */ protected Key engineTranslateKey(Key key) throws InvalidKeyException { try { if (key instanceof java.security.interfaces.DSAPublicKey) { // Check if key originates from this factory if (key instanceof sun.security.provider.DSAPublicKey) { return key; } // Convert key to spec DSAPublicKeySpec dsaPubKeySpec = engineGetKeySpec(key, DSAPublicKeySpec.class); // Create key from spec, and return it return engineGeneratePublic(dsaPubKeySpec); } else if (key instanceof java.security.interfaces.DSAPrivateKey) { // Check if key originates from this factory if (key instanceof sun.security.provider.DSAPrivateKey) { return key; } // Convert key to spec DSAPrivateKeySpec dsaPrivKeySpec = engineGetKeySpec(key, DSAPrivateKeySpec.class); // Create key from spec, and return it return engineGeneratePrivate(dsaPrivKeySpec); } else { throw new InvalidKeyException("Wrong algorithm type"); } } catch (InvalidKeySpecException e) { throw new InvalidKeyException("Cannot translate key: " + e.getMessage()); } }}
/*
* Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.security.provider;
import java.util.*;
import java.lang.*;
import java.security.Key;
import java.security.PublicKey;
import java.security.PrivateKey;
import java.security.KeyFactorySpi;
import java.security.InvalidKeyException;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.security.interfaces.DSAParams;
import java.security.spec.DSAPublicKeySpec;
import java.security.spec.DSAPrivateKeySpec;
import java.security.spec.KeySpec;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.X509EncodedKeySpec;
import java.security.spec.PKCS8EncodedKeySpec;
import sun.security.action.GetPropertyAction;
/**
* This class implements the DSA key factory of the Sun provider.
*
* @author Jan Luehe
*
*
* @since 1.2
*/
public class DSAKeyFactory extends KeyFactorySpi {
// package private for DSAKeyPairGenerator
static final boolean SERIAL_INTEROP;
private static final String SERIAL_PROP = "sun.security.key.serial.interop";
static {
/**
* Check to see if we need to maintain interoperability for serialized
* keys between JDK 5.0 -> JDK 1.4. In other words, determine whether
* a key object serialized in JDK 5.0 must be deserializable in
* JDK 1.4.
*
* If true, then we generate sun.security.provider.DSAPublicKey.
* If false, then we generate sun.security.provider.DSAPublicKeyImpl.
*
* By default this is false.
* This incompatibility was introduced by 4532506.
*/
String prop = AccessController.doPrivileged
(new GetPropertyAction(SERIAL_PROP, null));
SERIAL_INTEROP = "true".equalsIgnoreCase(prop);
}
/**
* Generates a public key object from the provided key specification
* (key material).
*
* @param keySpec the specification (key material) of the public key
*
* @return the public key
*
* @exception InvalidKeySpecException if the given key specification
* is inappropriate for this key factory to produce a public key.
*/
protected PublicKey engineGeneratePublic(KeySpec keySpec)
throws InvalidKeySpecException {
try {
if (keySpec instanceof DSAPublicKeySpec) {
DSAPublicKeySpec dsaPubKeySpec = (DSAPublicKeySpec)keySpec;
if (SERIAL_INTEROP) {
return new DSAPublicKey(dsaPubKeySpec.getY(),
dsaPubKeySpec.getP(),
dsaPubKeySpec.getQ(),
dsaPubKeySpec.getG());
} else {
return new DSAPublicKeyImpl(dsaPubKeySpec.getY(),
dsaPubKeySpec.getP(),
dsaPubKeySpec.getQ(),
dsaPubKeySpec.getG());
}
} else if (keySpec instanceof X509EncodedKeySpec) {
if (SERIAL_INTEROP) {
return new DSAPublicKey
(((X509EncodedKeySpec)keySpec).getEncoded());
} else {
return new DSAPublicKeyImpl
(((X509EncodedKeySpec)keySpec).getEncoded());
}
} else {
throw new InvalidKeySpecException
("Inappropriate key specification");
}
} catch (InvalidKeyException e) {
throw new InvalidKeySpecException
("Inappropriate key specification: " + e.getMessage());
}
}
/**
* Generates a private key object from the provided key specification
* (key material).
*
* @param keySpec the specification (key material) of the private key
*
* @return the private key
*
* @exception InvalidKeySpecException if the given key specification
* is inappropriate for this key factory to produce a private key.
*/
protected PrivateKey engineGeneratePrivate(KeySpec keySpec)
throws InvalidKeySpecException {
try {
if (keySpec instanceof DSAPrivateKeySpec) {
DSAPrivateKeySpec dsaPrivKeySpec = (DSAPrivateKeySpec)keySpec;
return new DSAPrivateKey(dsaPrivKeySpec.getX(),
dsaPrivKeySpec.getP(),
dsaPrivKeySpec.getQ(),
dsaPrivKeySpec.getG());
} else if (keySpec instanceof PKCS8EncodedKeySpec) {
return new DSAPrivateKey
(((PKCS8EncodedKeySpec)keySpec).getEncoded());
} else {
throw new InvalidKeySpecException
("Inappropriate key specification");
}
} catch (InvalidKeyException e) {
throw new InvalidKeySpecException
("Inappropriate key specification: " + e.getMessage());
}
}
/**
* Returns a specification (key material) of the given key object
* in the requested format.
*
* @param key the key
*
* @param keySpec the requested format in which the key material shall be
* returned
*
* @return the underlying key specification (key material) in the
* requested format
*
* @exception InvalidKeySpecException if the requested key specification is
* inappropriate for the given key, or the given key cannot be processed
* (e.g., the given key has an unrecognized algorithm or format).
*/
protected <T extends KeySpec>
T engineGetKeySpec(Key key, Class<T> keySpec)
throws InvalidKeySpecException {
DSAParams params;
try {
if (key instanceof java.security.interfaces.DSAPublicKey) {
// Determine valid key specs
Class<?> dsaPubKeySpec = Class.forName
("java.security.spec.DSAPublicKeySpec");
Class<?> x509KeySpec = Class.forName
("java.security.spec.X509EncodedKeySpec");
if (dsaPubKeySpec.isAssignableFrom(keySpec)) {
java.security.interfaces.DSAPublicKey dsaPubKey
= (java.security.interfaces.DSAPublicKey)key;
params = dsaPubKey.getParams();
return (T) new DSAPublicKeySpec(dsaPubKey.getY(),
params.getP(),
params.getQ(),
params.getG());
} else if (x509KeySpec.isAssignableFrom(keySpec)) {
return (T) new X509EncodedKeySpec(key.getEncoded());
} else {
throw new InvalidKeySpecException
("Inappropriate key specification");
}
} else if (key instanceof java.security.interfaces.DSAPrivateKey) {
// Determine valid key specs
Class<?> dsaPrivKeySpec = Class.forName
("java.security.spec.DSAPrivateKeySpec");
Class<?> pkcs8KeySpec = Class.forName
("java.security.spec.PKCS8EncodedKeySpec");
if (dsaPrivKeySpec.isAssignableFrom(keySpec)) {
java.security.interfaces.DSAPrivateKey dsaPrivKey
= (java.security.interfaces.DSAPrivateKey)key;
params = dsaPrivKey.getParams();
return (T) new DSAPrivateKeySpec(dsaPrivKey.getX(),
params.getP(),
params.getQ(),
params.getG());
} else if (pkcs8KeySpec.isAssignableFrom(keySpec)) {
return (T) new PKCS8EncodedKeySpec(key.getEncoded());
} else {
throw new InvalidKeySpecException
("Inappropriate key specification");
}
} else {
throw new InvalidKeySpecException("Inappropriate key type");
}
} catch (ClassNotFoundException e) {
throw new InvalidKeySpecException
("Unsupported key specification: " + e.getMessage());
}
}
/**
* Translates a key object, whose provider may be unknown or potentially
* untrusted, into a corresponding key object of this key factory.
*
* @param key the key whose provider is unknown or untrusted
*
* @return the translated key
*
* @exception InvalidKeyException if the given key cannot be processed by
* this key factory.
*/
protected Key engineTranslateKey(Key key) throws InvalidKeyException {
try {
if (key instanceof java.security.interfaces.DSAPublicKey) {
// Check if key originates from this factory
if (key instanceof sun.security.provider.DSAPublicKey) {
return key;
}
// Convert key to spec
DSAPublicKeySpec dsaPubKeySpec
= engineGetKeySpec(key, DSAPublicKeySpec.class);
// Create key from spec, and return it
return engineGeneratePublic(dsaPubKeySpec);
} else if (key instanceof java.security.interfaces.DSAPrivateKey) {
// Check if key originates from this factory
if (key instanceof sun.security.provider.DSAPrivateKey) {
return key;
}
// Convert key to spec
DSAPrivateKeySpec dsaPrivKeySpec
= engineGetKeySpec(key, DSAPrivateKeySpec.class);
// Create key from spec, and return it
return engineGeneratePrivate(dsaPrivKeySpec);
} else {
throw new InvalidKeyException("Wrong algorithm type");
}
} catch (InvalidKeySpecException e) {
throw new InvalidKeyException("Cannot translate key: "
+ e.getMessage());
}
}
}