01 /*
02 * Copyright 2003 Sun Microsystems, Inc. All Rights Reserved.
03 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04 *
05 * This code is free software; you can redistribute it and/or modify it
06 * under the terms of the GNU General Public License version 2 only, as
07 * published by the Free Software Foundation. Sun designates this
08 * particular file as subject to the "Classpath" exception as provided
09 * 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 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 * @version 1.10, 05/05/07
35 *
36 * @since 1.5
37 */
38 public class ECGenParameterSpec implements AlgorithmParameterSpec {
39
40 private String name;
41
42 /**
43 * Creates a parameter specification for EC parameter
44 * generation using a standard (or predefined) name
45 * <code>stdName</code> in order to generate the corresponding
46 * (precomputed) elliptic curve domain parameters. For the
47 * list of supported names, please consult the documentation
48 * of provider whose implementation will be used.
49 * @param stdName the standard name of the to-be-generated EC
50 * domain parameters.
51 * @exception NullPointerException if <code>stdName</code>
52 * is null.
53 */
54 public ECGenParameterSpec(String stdName) {
55 if (stdName == null) {
56 throw new NullPointerException("stdName is null");
57 }
58 this .name = stdName;
59 }
60
61 /**
62 * Returns the standard or predefined name of the
63 * to-be-generated EC domain parameters.
64 * @return the standard or predefined name.
65 */
66 public String getName() {
67 return name;
68 }
69 }
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