1 /*
2 * Copyright 1997-2005 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 java.security.spec;
27
28 /**
29 * This class represents the ASN.1 encoding of a private key,
30 * encoded according to the ASN.1 type <code>PrivateKeyInfo</code>.
31 * The <code>PrivateKeyInfo</code> syntax is defined in the PKCS#8 standard
32 * as follows:
33 *
34 * <pre>
35 * PrivateKeyInfo ::= SEQUENCE {
36 * version Version,
37 * privateKeyAlgorithm PrivateKeyAlgorithmIdentifier,
38 * privateKey PrivateKey,
39 * attributes [0] IMPLICIT Attributes OPTIONAL }
40 *
41 * Version ::= INTEGER
42 *
43 * PrivateKeyAlgorithmIdentifier ::= AlgorithmIdentifier
44 *
45 * PrivateKey ::= OCTET STRING
46 *
47 * Attributes ::= SET OF Attribute
48 * </pre>
49 *
50 * @author Jan Luehe
51 *
52 *
53 * @see java.security.Key
54 * @see java.security.KeyFactory
55 * @see KeySpec
56 * @see EncodedKeySpec
57 * @see X509EncodedKeySpec
58 *
59 * @since 1.2
60 */
61
62 public class PKCS8EncodedKeySpec extends EncodedKeySpec {
63
64 /**
65 * Creates a new PKCS8EncodedKeySpec with the given encoded key.
66 *
67 * @param encodedKey the key, which is assumed to be
68 * encoded according to the PKCS #8 standard. The contents of
69 * the array are copied to protect against subsequent modification.
70 * @exception NullPointerException if <code>encodedKey</code>
71 * is null.
72 */
73 public PKCS8EncodedKeySpec(byte[] encodedKey) {
74 super(encodedKey);
75 }
76
77 /**
78 * Returns the key bytes, encoded according to the PKCS #8 standard.
79 *
80 * @return the PKCS #8 encoding of the key. Returns a new array
81 * each time this method is called.
82 */
83 public byte[] getEncoded() {
84 return super.getEncoded();
85 }
86
87 /**
88 * Returns the name of the encoding format associated with this
89 * key specification.
90 *
91 * @return the string <code>"PKCS#8"</code>.
92 */
93 public final String getFormat() {
94 return "PKCS#8";
95 }
96 }
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