gcc/libjava/java/security/KeyFactory.java

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decl.c (init_decl_processing): Add new class "protectionDomain" field. gcc/java: 2001-04-25 Bryce McKinlay <bryce@waitaki.otago.ac.nz> * decl.c (init_decl_processing): Add new class "protectionDomain" field. * class.c (make_class_data): Set initial value for "protectionDomain". libjava: 2001-04-25 Bryce McKinlay <bryce@albatross.co.nz> java.security merge and ClassLoader compliance fixes. * java/lang/Class.h (Class): Include ProtectionDomain.h. New protectionDomain field. (forName): Add initialize parameter. Fixes declaration to comply with JDK spec. * java/lang/natClass.cc (forName): Correct declaration of the three-arg variant. Honour "initialize" flag. (getProtectionDomain0): New method. * java/lang/Class.java: Fix forName() declaration. (getPackage): New method based on Classpath implementation. (getProtectionDomain0): New native method decl. (getProtectionDomain): New method. * java/lang/ClassLoader.java (getParent): Now final. (definedPackages): New field. (getPackage): New. (defineClass): New variant with protectionDomain argument. (definePackage): New. (getPackages): New. (findSystemClass): Now final. (getSystemResourceAsStream): Remove redundant "final" modifier. (getSystemResource): Remove redundant "final" modifier. (getResources): Now final. (protectionDomainPermission): New static field. (unknownProtectionDomain): Ditto. (defaultProtectionDomain): Ditto. (getSystemClassLoader): Now non-native. * java/util/ResourceBundle.java (tryGetSomeBundle): Use the correct arguments for Class.forName(). * java/lang/Package.java: New file. * gnu/gcj/runtime/VMClassLoader.java (getVMClassLoader): Removed. (instance): Static initialize singleton. (findClass): Override this, not findSystemClass. * java/lang/natClassLoader.cc (defineClass0): Set class's protectionDomain field as specified. (getSystemClassLoader): Removed. (findClass): Renamed from findSystemClass. Call the interpreter via URLClassLoader.findClass if loading class via dlopen fails. * java/security/*.java: java.security import/merge with Classpath. * java/security/acl/*.java: Likewise. * java/security/interfaces/*.java: Likewise. * java/security/spec/*.java: Likewise. * java/net/NetPermission.java: Likewise. * java/net/SocketPermission.java: Likewise. * gnu/java/security/provider/DefaultPolicy.java: Likewise. * Makefile.am: Add new classes. * Makefile.in: Rebuilt. * gcj/javaprims.h: CNI namespace rebuild. From-SVN: r41543
2001-04-25 17:45:15 +02:00
/* KeyFactory.java --- Key Factory Class
Copyright (C) 1999 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., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA.
As a special exception, if you link this library with other files to
produce an executable, this library does not by itself cause the
resulting executable to be covered by the GNU General Public License.
This exception does not however invalidate any other reasons why the
executable file might be covered by the GNU General Public License. */
package java.security;
import java.security.spec.KeySpec;
import java.security.spec.InvalidKeySpecException;
/**
Key factories are used to convert keys (opaque cryptographic
keys of type Key) into key specifications (transparent
representations of the underlying key material).
Key factories are bi-directional. They allow a key class
to be converted into a key specification (key material) and
back again.
For example DSA public keys can be specified as
DSAPublicKeySpec or X509EncodedKeySpec. The key factory
translate these key specifications.
@since JDK 1.2
@author Mark Benvenuto
*/
public class KeyFactory
{
private KeyFactorySpi keyFacSpi;
private Provider provider;
private String algorithm;
/**
Constructs a new keyFactory with the specified parameters.
@param keyFacSpi Key Factory SPI to use
@param provider the provider of the Key Factory SPI
@param algorithm the name of the key algorithm for this key factory
*/
protected KeyFactory(KeyFactorySpi keyFacSpi, Provider provider,
String algorithm)
{
this.keyFacSpi = keyFacSpi;
this.provider = provider;
this.algorithm = algorithm;
}
/**
Gets an instance of the KeyFactory class representing
the specified key factory. If the algorithm is not
found then, it throws NoSuchAlgorithmException.
@param algorithm the name of algorithm to choose
@return a KeyFactory repesenting the desired algorithm
@throws NoSuchAlgorithmException if the algorithm is not implemented by providers
*/
public static KeyFactory getInstance(String algorithm)
throws NoSuchAlgorithmException
{
Provider[] p = Security.getProviders();
for (int i = 0; i < p.length; i++)
{
String classname = p[i].getProperty("KeyFactory." + algorithm);
if (classname != null)
return getInstance(classname, algorithm, p[i]);
}
throw new NoSuchAlgorithmException(algorithm);
}
/**
Gets an instance of the KeyFactory class representing
the specified key factory from the specified provider.
If the algorithm is not found then, it throws
NoSuchAlgorithmException. If the provider is not found, then
it throws NoSuchProviderException.
@param algorithm the name of algorithm to choose
@param provider the name of the provider to find the algorithm in
@return a KeyFactory repesenting the desired algorithm
@throws NoSuchAlgorithmException if the algorithm is not implemented by the provider
@throws NoSuchProviderException if the provider is not found
*/
public static KeyFactory getInstance(String algorithm, String provider)
throws NoSuchAlgorithmException, NoSuchProviderException
{
Provider p = Security.getProvider(provider);
if (p == null)
throw new NoSuchProviderException();
return getInstance(p.getProperty("KeyFactory." + algorithm),
algorithm, p);
}
private static KeyFactory getInstance(String classname,
String algorithm,
Provider provider)
throws NoSuchAlgorithmException
{
try
{
return new KeyFactory((KeyFactorySpi) Class.forName(classname).
newInstance(), provider, algorithm);
}
catch (ClassNotFoundException cnfe)
{
throw new NoSuchAlgorithmException("Class not found");
}
catch (InstantiationException ie)
{
throw new NoSuchAlgorithmException("Class instantiation failed");
}
catch (IllegalAccessException iae)
{
throw new NoSuchAlgorithmException("Illegal Access");
}
}
/**
Gets the provider that the class is from.
@return the provider of this class
*/
public final Provider getProvider()
{
return provider;
}
/**
Returns the name of the algorithm used
@return A string with the name of the algorithm
*/
public final String getAlgorithm()
{
return algorithm;
}
/**
Generates a public key from the provided key specification.
@param keySpec key specification
@return the public key
@throws InvalidKeySpecException invalid key specification for
this key factory to produce a public key
*/
public final PublicKey generatePublic(KeySpec keySpec) throws
InvalidKeySpecException
{
return keyFacSpi.engineGeneratePublic(keySpec);
}
/**
Generates a private key from the provided key specification.
@param keySpec key specification
@return the private key
@throws InvalidKeySpecException invalid key specification for
this key factory to produce a private key
*/
public final PrivateKey generatePrivate(KeySpec keySpec) throws
InvalidKeySpecException
{
return keyFacSpi.engineGeneratePrivate(keySpec);
}
/**
Returns a key specification for the given key. keySpec
identifies the specification class to return the key
material in.
@param key the key
@param keySpec the specification class to return the
key material in.
@return the key specification in an instance of the requested
specification class
@throws InvalidKeySpecException the requested key specification
is inappropriate for this key or the key is
unrecognized.
*/
public final KeySpec getKeySpec(Key key, Class keySpec)
throws InvalidKeySpecException
{
return keyFacSpi.engineGetKeySpec(key, keySpec);
}
/**
Translates the key from an unknown or untrusted provider
into a key for this key factory.
@param the key from an unknown or untrusted provider
@return the translated key
@throws InvalidKeySpecException if the key cannot be
processed by this key factory
*/
public final Key translateKey(Key key) throws InvalidKeyException
{
return keyFacSpi.engineTranslateKey(key);
}
}