1 /*

     2  * Copyright 2009 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Sun designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Sun in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    22  * CA 95054 USA or visit www.sun.com if you need additional information or

    23  * have any questions.

    24  */

    25 

    26 package sun.security.ec;

    27 

    28 import java.util.*;

    29 import java.security.*;

    30 import sun.security.action.PutAllAction;

    31 

    32 /**

    33  * Provider class for the Elliptic Curve provider.

    34  * Supports EC keypair and parameter generation, ECDSA signing and

    35  * ECDH key agreement.

    36  *

    37  * IMPLEMENTATION NOTE:

    38  * The Java classes in this provider access a native ECC implementation

    39  * via JNI to a C++ wrapper class which in turn calls C functions.

    40  * The Java classes are packaged into the signed sunec.jar in the JRE

    41  * extensions directory and the C++ and C functions are packaged into

    42  * libsunecc.so or sunecc.dll in the JRE native libraries directory.

    43  *

    44  * @since   1.7

    45  */

    46 public final class SunEC extends Provider {

    47 

    48     private static final long serialVersionUID = -2279741672933606418L;

    49 

    50     public SunEC() {

    51         super("SunEC", 1.7d, "Sun Elliptic Curve provider (EC, ECDSA, ECDH)");

    52 

    53         // if there is no security manager installed, put directly into

    54         // the provider. Otherwise, create a temporary map and use a

    55         // doPrivileged() call at the end to transfer the contents

    56         if (System.getSecurityManager() == null) {

    57             SunECEntries.putEntries(this);

    58         } else {

    59             Map<Object, Object> map = new HashMap<Object, Object>();

    60             SunECEntries.putEntries(map);

    61             AccessController.doPrivileged(new PutAllAction(this, map));

    62         }

    63     }

    64 

    65 }