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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 | +import java.io.*; | |
| 29 | + | |
| 30 | +/** | |
| 31 | + * This class is used to represent an Identity that can also digitally | |
| 32 | + * sign data. | |
| 33 | + * | |
| 34 | + * <p>The management of a signer's private keys is an important and | |
| 35 | + * sensitive issue that should be handled by subclasses as appropriate | |
| 36 | + * to their intended use. | |
| 37 | + * | |
| 38 | + * @see Identity | |
| 39 | + * | |
| 40 | + * @author Benjamin Renaud | |
| 41 | + * | |
| 42 | + * @deprecated This class is no longer used. Its functionality has been | |
| 43 | + * replaced by <code>java.security.KeyStore</code>, the | |
| 44 | + * <code>java.security.cert</code> package, and | |
| 45 | + * <code>java.security.Principal</code>. | |
| 46 | + */ | |
| 47 | +@Deprecated | |
| 48 | +public abstract class Signer extends Identity { | |
| 49 | + | |
| 50 | + private static final long serialVersionUID = -1763464102261361480L; | |
| 51 | + | |
| 52 | + /** | |
| 53 | + * The signer's private key. | |
| 54 | + * | |
| 55 | + * @serial | |
| 56 | + */ | |
| 57 | + private PrivateKey privateKey; | |
| 58 | + | |
| 59 | + /** | |
| 60 | + * Creates a signer. This constructor should only be used for | |
| 61 | + * serialization. | |
| 62 | + */ | |
| 63 | + protected Signer() { | |
| 64 | + super(); | |
| 65 | + } | |
| 66 | + | |
| 67 | + | |
| 68 | + /** | |
| 69 | + * Creates a signer with the specified identity name. | |
| 70 | + * | |
| 71 | + * @param name the identity name. | |
| 72 | + */ | |
| 73 | + public Signer(String name) { | |
| 74 | + super(name); | |
| 75 | + } | |
| 76 | + | |
| 77 | + /** | |
| 78 | + * Creates a signer with the specified identity name and scope. | |
| 79 | + * | |
| 80 | + * @param name the identity name. | |
| 81 | + * | |
| 82 | + * @param scope the scope of the identity. | |
| 83 | + * | |
| 84 | + * @exception KeyManagementException if there is already an identity | |
| 85 | + * with the same name in the scope. | |
| 86 | + */ | |
| 87 | + public Signer(String name, IdentityScope scope) | |
| 88 | + throws KeyManagementException { | |
| 89 | + super(name, scope); | |
| 90 | + } | |
| 91 | + | |
| 92 | + /** | |
| 93 | + * Returns this signer's private key. | |
| 94 | + * | |
| 95 | + * <p>First, if there is a security manager, its <code>checkSecurityAccess</code> | |
| 96 | + * method is called with <code>"getSignerPrivateKey"</code> | |
| 97 | + * as its argument to see if it's ok to return the private key. | |
| 98 | + * | |
| 99 | + * @return this signer's private key, or null if the private key has | |
| 100 | + * not yet been set. | |
| 101 | + * | |
| 102 | + * @exception SecurityException if a security manager exists and its | |
| 103 | + * <code>checkSecurityAccess</code> method doesn't allow | |
| 104 | + * returning the private key. | |
| 105 | + * | |
| 106 | + * @see SecurityManager#checkSecurityAccess | |
| 107 | + */ | |
| 108 | + public PrivateKey getPrivateKey() { | |
| 109 | + check("getSignerPrivateKey"); | |
| 110 | + return privateKey; | |
| 111 | + } | |
| 112 | + | |
| 113 | + /** | |
| 114 | + * Sets the key pair (public key and private key) for this signer. | |
| 115 | + * | |
| 116 | + * <p>First, if there is a security manager, its <code>checkSecurityAccess</code> | |
| 117 | + * method is called with <code>"setSignerKeyPair"</code> | |
| 118 | + * as its argument to see if it's ok to set the key pair. | |
| 119 | + * | |
| 120 | + * @param pair an initialized key pair. | |
| 121 | + * | |
| 122 | + * @exception InvalidParameterException if the key pair is not | |
| 123 | + * properly initialized. | |
| 124 | + * @exception KeyException if the key pair cannot be set for any | |
| 125 | + * other reason. | |
| 126 | + * @exception SecurityException if a security manager exists and its | |
| 127 | + * <code>checkSecurityAccess</code> method doesn't allow | |
| 128 | + * setting the key pair. | |
| 129 | + * | |
| 130 | + * @see SecurityManager#checkSecurityAccess | |
| 131 | + */ | |
| 132 | + public final void setKeyPair(KeyPair pair) | |
| 133 | + throws InvalidParameterException, KeyException { | |
| 134 | + check("setSignerKeyPair"); | |
| 135 | + final PublicKey pub = pair.getPublic(); | |
| 136 | + PrivateKey priv = pair.getPrivate(); | |
| 137 | + | |
| 138 | + if (pub == null || priv == null) { | |
| 139 | + throw new InvalidParameterException(); | |
| 140 | + } | |
| 141 | + try { | |
| 142 | + AccessController.doPrivileged( | |
| 143 | + new PrivilegedExceptionAction<Void>() { | |
| 144 | + public Void run() throws KeyManagementException { | |
| 145 | + setPublicKey(pub); | |
| 146 | + return null; | |
| 147 | + } | |
| 148 | + }); | |
| 149 | + } catch (PrivilegedActionException pae) { | |
| 150 | + throw (KeyManagementException) pae.getException(); | |
| 151 | + } | |
| 152 | + privateKey = priv; | |
| 153 | + } | |
| 154 | + | |
| 155 | + String printKeys() { | |
| 156 | + String keys = ""; | |
| 157 | + PublicKey publicKey = getPublicKey(); | |
| 158 | + if (publicKey != null && privateKey != null) { | |
| 159 | + keys = "\tpublic and private keys initialized"; | |
| 160 | + | |
| 161 | + } else { | |
| 162 | + keys = "\tno keys"; | |
| 163 | + } | |
| 164 | + return keys; | |
| 165 | + } | |
| 166 | + | |
| 167 | + /** | |
| 168 | + * Returns a string of information about the signer. | |
| 169 | + * | |
| 170 | + * @return a string of information about the signer. | |
| 171 | + */ | |
| 172 | + public String toString() { | |
| 173 | + return "[Signer]" + super.toString(); | |
| 174 | + } | |
| 175 | + | |
| 176 | + private static void check(String directive) { | |
| 177 | + SecurityManager security = System.getSecurityManager(); | |
| 178 | + if (security != null) { | |
| 179 | + security.checkSecurityAccess(directive); | |
| 180 | + } | |
| 181 | + } | |
| 182 | + | |
| 183 | +} | |