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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
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*
* 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).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
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package sun.security.provider;
import java.util.*;
import java.security.*;
import sun.security.action.PutAllAction;
import sun.security.rsa.SunRsaSignEntries;
/**
* Provider used for verification of signed JAR files *if* the Sun and
* SunRsaSign main classes have been removed. Otherwise, this provider is not
* necessary and registers no algorithms. This functionality only exists to
* support a use case required by a specific customer and is not generally
* supported.
*
* @since 1.7
* @author Andreas Sterbenz
*/
public final class VerificationProvider extends Provider {
private static final long serialVersionUID = 7482667077568930381L;
private static final boolean ACTIVE;
static {
boolean b;
try {
Class.forName("sun.security.provider.Sun");
Class.forName("sun.security.rsa.SunRsaSign");
b = false;
} catch (ClassNotFoundException e) {
b = true;
}
ACTIVE = b;
}
public VerificationProvider() {
super("SunJarVerification", 1.7, "Jar Verification Provider");
// register all algorithms normally registered by the Sun and SunRsaSign
// providers, but only if they are missing
if (ACTIVE == false) {
return;
}
// if there is no security manager installed, put directly into
// the provider. Otherwise, create a temporary map and use a
// doPrivileged() call at the end to transfer the contents
if (System.getSecurityManager() == null) {
SunEntries.putEntries(this);
SunRsaSignEntries.putEntries(this);
} else {
// use LinkedHashMap to preserve the order of the PRNGs
Map<Object, Object> map = new LinkedHashMap<Object, Object>();
SunEntries.putEntries(map);
SunRsaSignEntries.putEntries(map);
AccessController.doPrivileged(new PutAllAction(this, map));
}
}
}