From 28f7d9d05ad70afad626d4bc54c633d31eb7430a Mon Sep 17 00:00:00 2001 From: Bryce McKinlay Date: Wed, 25 Apr 2001 16:45:15 +0100 Subject: decl.c (init_decl_processing): Add new class "protectionDomain" field. gcc/java: 2001-04-25 Bryce McKinlay * 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 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 --- libjava/java/security/KeyFactory.java | 232 ++++++++++++++++++++++++++++++++++ 1 file changed, 232 insertions(+) create mode 100644 libjava/java/security/KeyFactory.java (limited to 'libjava/java/security/KeyFactory.java') diff --git a/libjava/java/security/KeyFactory.java b/libjava/java/security/KeyFactory.java new file mode 100644 index 0000000..7bbc355 --- /dev/null +++ b/libjava/java/security/KeyFactory.java @@ -0,0 +1,232 @@ +/* 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); + } +} -- cgit v1.1