Java example source code file (SunRsaSign.java)

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Java - Java tags/keywords

hashmap, map, object, provider, putallaction, rsa, security, sunrsasign, util

The SunRsaSign.java Java example source code

/*
 * Copyright (c) 2003, 2013, 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.rsa;

import java.util.*;

import java.security.*;

import sun.security.action.PutAllAction;

/**
 * Provider class for the RSA signature provider. Supports RSA keyfactory,
 * keypair generation, and RSA signatures.
 *
 * @since   1.5
 * @author  Andreas Sterbenz
 */
public final class SunRsaSign extends Provider {

    private static final long serialVersionUID = 866040293550393045L;

    public SunRsaSign() {
        super("SunRsaSign", 1.8d, "Sun RSA signature provider");

        // 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) {
            SunRsaSignEntries.putEntries(this);
        } else {
            // use LinkedHashMap to preserve the order of the PRNGs
            Map<Object, Object> map = new HashMap<>();
            SunRsaSignEntries.putEntries(map);
            AccessController.doPrivileged(new PutAllAction(this, map));
        }
    }

}