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My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

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java/pkg/java/security/Key.java+153−0
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1+/*
2+ * Copyright (c) 1996, 2006, 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+
26+package java.security;
27+
28+/**
29+ * The Key interface is the top-level interface for all keys. It
30+ * defines the functionality shared by all key objects. All keys
31+ * have three characteristics:
32+ *
33+ * <UL>
34+ *
35+ * <LI>An Algorithm
36+ *
37+ * <P>This is the key algorithm for that key. The key algorithm is usually
38+ * an encryption or asymmetric operation algorithm (such as DSA or
39+ * RSA), which will work with those algorithms and with related
40+ * algorithms (such as MD5 with RSA, SHA-1 with RSA, Raw DSA, etc.)
41+ * The name of the algorithm of a key is obtained using the
42+ * {@link #getAlgorithm() getAlgorithm} method.<P>
43+ *
44+ * <LI>An Encoded Form
45+ *
46+ * <P>This is an external encoded form for the key used when a standard
47+ * representation of the key is needed outside the Java Virtual Machine,
48+ * as when transmitting the key to some other party. The key
49+ * is encoded according to a standard format (such as
50+ * X.509 <code>SubjectPublicKeyInfo</code> or PKCS#8), and
51+ * is returned using the {@link #getEncoded() getEncoded} method.
52+ * Note: The syntax of the ASN.1 type <code>SubjectPublicKeyInfo</code>
53+ * is defined as follows:
54+ *
55+ * <pre>
56+ * SubjectPublicKeyInfo ::= SEQUENCE {
57+ * algorithm AlgorithmIdentifier,
58+ * subjectPublicKey BIT STRING }
59+ *
60+ * AlgorithmIdentifier ::= SEQUENCE {
61+ * algorithm OBJECT IDENTIFIER,
62+ * parameters ANY DEFINED BY algorithm OPTIONAL }
63+ * </pre>
64+ *
65+ * For more information, see
66+ * <a href="http://www.ietf.org/rfc/rfc3280.txt">RFC 3280:
67+ * Internet X.509 Public Key Infrastructure Certificate and CRL Profile</a>.
68+ * <P>
69+ *
70+ * <LI>A Format
71+ *
72+ * <P>This is the name of the format of the encoded key. It is returned
73+ * by the {@link #getFormat() getFormat} method.<P>
74+ *
75+ * </UL>
76+ *
77+ * Keys are generally obtained through key generators, certificates,
78+ * or various Identity classes used to manage keys.
79+ * Keys may also be obtained from key specifications (transparent
80+ * representations of the underlying key material) through the use of a key
81+ * factory (see {@link KeyFactory}).
82+ *
83+ * <p> A Key should use KeyRep as its serialized representation.
84+ * Note that a serialized Key may contain sensitive information
85+ * which should not be exposed in untrusted environments. See the
86+ * <a href="../../../platform/serialization/spec/security.html">
87+ * Security Appendix</a>
88+ * of the Serialization Specification for more information.
89+ *
90+ * @see PublicKey
91+ * @see PrivateKey
92+ * @see KeyPair
93+ * @see KeyPairGenerator
94+ * @see KeyFactory
95+ * @see KeyRep
96+ * @see java.security.spec.KeySpec
97+ * @see Identity
98+ * @see Signer
99+ *
100+ * @author Benjamin Renaud
101+ */
102+
103+public interface Key extends java.io.Serializable {
104+
105+ // Declare serialVersionUID to be compatible with JDK1.1
106+
107+ /**
108+ * The class fingerprint that is set to indicate
109+ * serialization compatibility with a previous
110+ * version of the class.
111+ */
112+ static final long serialVersionUID = 6603384152749567654L;
113+
114+ /**
115+ * Returns the standard algorithm name for this key. For
116+ * example, "DSA" would indicate that this key is a DSA key.
117+ * See Appendix A in the <a href=
118+ * "../../../technotes/guides/security/crypto/CryptoSpec.html#AppA">
119+ * Java Cryptography Architecture API Specification &amp; Reference </a>
120+ * for information about standard algorithm names.
121+ *
122+ * @return the name of the algorithm associated with this key.
123+ */
124+ public String getAlgorithm();
125+
126+ /**
127+ * Returns the name of the primary encoding format of this key,
128+ * or null if this key does not support encoding.
129+ * The primary encoding format is
130+ * named in terms of the appropriate ASN.1 data format, if an
131+ * ASN.1 specification for this key exists.
132+ * For example, the name of the ASN.1 data format for public
133+ * keys is <I>SubjectPublicKeyInfo</I>, as
134+ * defined by the X.509 standard; in this case, the returned format is
135+ * <code>"X.509"</code>. Similarly,
136+ * the name of the ASN.1 data format for private keys is
137+ * <I>PrivateKeyInfo</I>,
138+ * as defined by the PKCS #8 standard; in this case, the returned format is
139+ * <code>"PKCS#8"</code>.
140+ *
141+ * @return the primary encoding format of the key.
142+ */
143+ public String getFormat();
144+
145+ /**
146+ * Returns the key in its primary encoding format, or null
147+ * if this key does not support encoding.
148+ *
149+ * @return the encoded key, or null if the key does not support
150+ * encoding.
151+ */
152+ public byte[] getEncoded();
153+}