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Java > Open Source Codes > java > security > spec > PKCS8EncodedKeySpec


1 /*
2  * @(#)PKCS8EncodedKeySpec.java 1.19 03/12/19
3  *
4  * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
5  * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
6  */
7
8 package java.security.spec;
9
10 /**
11  * This class represents the ASN.1 encoding of a private key,
12  * encoded according to the ASN.1 type <code>PrivateKeyInfo</code>.
13  * The <code>PrivateKeyInfo</code> syntax is defined in the PKCS#8 standard
14  * as follows:
15  *
16  * <pre>
17  * PrivateKeyInfo ::= SEQUENCE {
18  * version Version,
19  * privateKeyAlgorithm PrivateKeyAlgorithmIdentifier,
20  * privateKey PrivateKey,
21  * attributes [0] IMPLICIT Attributes OPTIONAL }
22  *
23  * Version ::= INTEGER
24  *
25  * PrivateKeyAlgorithmIdentifier ::= AlgorithmIdentifier
26  *
27  * PrivateKey ::= OCTET STRING
28  *
29  * Attributes ::= SET OF Attribute
30  * </pre>
31  *
32  * @author Jan Luehe
33  *
34  * @version 1.19, 12/19/03
35  *
36  * @see java.security.Key
37  * @see java.security.KeyFactory
38  * @see KeySpec
39  * @see EncodedKeySpec
40  * @see X509EncodedKeySpec
41  *
42  * @since 1.2
43  */
44
45 public class PKCS8EncodedKeySpec extends EncodedKeySpec JavaDoc {
46
47     /**
48      * Creates a new PKCS8EncodedKeySpec with the given encoded key.
49      *
50      * @param encodedKey the key, which is assumed to be
51      * encoded according to the PKCS #8 standard. The contents of
52      * the array are copied to protect against subsequent modification.
53      */
54     public PKCS8EncodedKeySpec(byte[] encodedKey) {
55     super(encodedKey);
56     }
57
58     /**
59      * Returns the key bytes, encoded according to the PKCS #8 standard.
60      *
61      * @return the PKCS #8 encoding of the key. Returns a new array
62      * each time this method is called.
63      */
64     public byte[] getEncoded() {
65     return super.getEncoded();
66     }
67
68     /**
69      * Returns the name of the encoding format associated with this
70      * key specification.
71      *
72      * @return the string <code>"PKCS#8"</code>.
73      */
74     public final String JavaDoc getFormat() {
75     return "PKCS#8";
76     }
77 }
78
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