1/*
2 * Copyright (c) 1997, 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
26package java.security.spec;
27
28/**
29 * This class represents the ASN.1 encoding of a public key,
30 * encoded according to the ASN.1 type {@code SubjectPublicKeyInfo}.
31 * The {@code SubjectPublicKeyInfo} syntax is defined in the X.509
32 * standard as follows:
33 *
34 * <pre>
35 * SubjectPublicKeyInfo ::= SEQUENCE {
36 *   algorithm AlgorithmIdentifier,
37 *   subjectPublicKey BIT STRING }
38 * </pre>
39 *
40 * @author Jan Luehe
41 *
42 *
43 * @see java.security.Key
44 * @see java.security.KeyFactory
45 * @see KeySpec
46 * @see EncodedKeySpec
47 * @see PKCS8EncodedKeySpec
48 *
49 * @since 1.2
50 */
51
52public class X509EncodedKeySpec extends EncodedKeySpec {
53
54    /**
55     * Creates a new X509EncodedKeySpec with the given encoded key.
56     *
57     * @param encodedKey the key, which is assumed to be
58     * encoded according to the X.509 standard. The contents of the
59     * array are copied to protect against subsequent modification.
60     * @exception NullPointerException if {@code encodedKey}
61     * is null.
62     */
63    public X509EncodedKeySpec(byte[] encodedKey) {
64        super(encodedKey);
65    }
66
67    /**
68     * Returns the key bytes, encoded according to the X.509 standard.
69     *
70     * @return the X.509 encoding of the key. Returns a new array
71     * each time this method is called.
72     */
73    public byte[] getEncoded() {
74        return super.getEncoded();
75    }
76
77    /**
78     * Returns the name of the encoding format associated with this
79     * key specification.
80     *
81     * @return the string {@code "X.509"}.
82     */
83    public final String getFormat() {
84        return "X.509";
85    }
86}
87