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      1 /*
      2  * Copyright (c) 2003, 2013, Oracle and/or its affiliates. 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.  Oracle designates this
      8  * particular file as subject to the "Classpath" exception as provided
      9  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
     22  * or visit www.oracle.com if you need additional information or have any
     23  * questions.
     24  */
     25 package java.security.spec;
     26 
     27 /**
     28  * This immutable class specifies the set of parameters used for
     29  * generating elliptic curve (EC) domain parameters.
     30  *
     31  * @see AlgorithmParameterSpec
     32  *
     33  * @author Valerie Peng
     34  *
     35  * @since 1.5
     36  */
     37 public class ECGenParameterSpec implements AlgorithmParameterSpec {
     38 
     39     private String name;
     40 
     41     /**
     42      * Creates a parameter specification for EC parameter
     43      * generation using a standard (or predefined) name
     44      * {@code stdName} in order to generate the corresponding
     45      * (precomputed) elliptic curve domain parameters. For the
     46      * list of supported names, please consult the documentation
     47      * of provider whose implementation will be used.
     48      * @param stdName the standard name of the to-be-generated EC
     49      * domain parameters.
     50      * @exception NullPointerException if {@code stdName}
     51      * is null.
     52      */
     53     public ECGenParameterSpec(String stdName) {
     54         if (stdName == null) {
     55             throw new NullPointerException("stdName is null");
     56         }
     57         this.name = stdName;
     58     }
     59 
     60     /**
     61      * Returns the standard or predefined name of the
     62      * to-be-generated EC domain parameters.
     63      * @return the standard or predefined name.
     64      */
     65     public String getName() {
     66         return name;
     67     }
     68 }
     69