1 /* Signer.java --- Signer Class
2    Copyright (C) 1999, 2003, Free Software Foundation, Inc.
3 
4 This file is part of GNU Classpath.
5 
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
10 
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 General Public License for more details.
15 
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING.  If not, write to the
18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19 02110-1301 USA.
20 
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library.  Thus, the terms and
23 conditions of the GNU General Public License cover the whole
24 combination.
25 
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module.  An independent module is a module which is not derived from
33 or based on this library.  If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so.  If you do not wish to do so, delete this
36 exception statement from your version. */
37 
38 package java.security;
39 
40 /**
41  * <code>Signer</code> is a subclass of {@link Identity}. It is used to store a
42  * digital signature key with an <i>Identity</i>.
43  *
44  * @author Mark Benvenuto (ivymccough@worldnet.att.net)
45  * @deprecated Replaced by <code>java.security.KeyStore</code>, the
46  * <code>java.security.cert</code> package, and <code>java.security.Principal</code>.
47  */
48 public abstract class Signer extends Identity
49 {
50   private static final long serialVersionUID = -1763464102261361480L;
51   private PrivateKey privateKey = null;
52 
53   /** Trivial constructor for serialization purposes. */
Signer()54   protected Signer()
55   {
56   }
57 
58   /**
59    * Constructs a new instance of <code>Signer</code> with the specified
60    * identity name.
61    *
62    * @param name
63    *          the name of the identity to use.
64    */
Signer(String name)65   public Signer(String name)
66   {
67     super(name);
68   }
69 
70   /**
71    * Constructs a new instance of <code>Signer</code> with the specified
72    * identity name and {@link IdentityScope}.
73    *
74    * @param name
75    *          the name of the the identity to use.
76    * @param scope
77    *          the {@link IdentityScope} to use.
78    * @throws KeyManagementException
79    *           if a duplicate identity <code>name</code> exists within
80    *           <code>scope</code>.
81    */
Signer(String name, IdentityScope scope)82   public Signer(String name, IdentityScope scope) throws KeyManagementException
83   {
84     super(name, scope);
85   }
86 
87   /**
88    * Returns the private key of this <code>Signer</code>.
89    *
90    * @returns the private key of this <code>Signer</code>.
91    * @throws SecurityException
92    *           if a {@link SecurityManager} is installed which disallows this
93    *           operation.
94    */
getPrivateKey()95   public PrivateKey getPrivateKey()
96   {
97     SecurityManager sm = System.getSecurityManager();
98     if (sm != null)
99       sm.checkSecurityAccess("getSignerPrivateKey");
100 
101     return privateKey;
102   }
103 
104   /**
105    * Specifies the {@link KeyPair} associated with this <code>Signer</code>.
106    *
107    * @param pair
108    *          the {@link KeyPair} to use.
109    * @throws InvalidParameterException
110    *           if the key-pair is invalid.
111    * @throws KeyException
112    *           if any another key-related error occurs.
113    * @throws SecurityException
114    *           if a {@link SecurityManager} is installed which disallows this
115    *           operation.
116    */
setKeyPair(KeyPair pair)117   public final void setKeyPair(KeyPair pair)
118     throws InvalidParameterException, KeyException
119   {
120     SecurityManager sm = System.getSecurityManager();
121     if (sm != null)
122       sm.checkSecurityAccess("setSignerKeyPair");
123 
124     try
125       {
126         if (pair.getPublic() != null)
127           setPublicKey(pair.getPublic());
128         else
129           throw new InvalidParameterException();
130 
131       }
132     catch (KeyManagementException kme)
133       {
134         throw new KeyException();
135       }
136 
137     if (pair.getPrivate() != null)
138         privateKey = pair.getPrivate();
139     else
140       throw new InvalidParameterException();
141   }
142 
143   /** @returns a string representing this <code>Signer</code>. */
toString()144   public String toString()
145   {
146     return (getName() + ": " + privateKey);
147   }
148 }
149