001 /* Signer.java --- Signer Class 002 Copyright (C) 1999, 2003, Free Software Foundation, Inc. 003 004 This file is part of GNU Classpath. 005 006 GNU Classpath is free software; you can redistribute it and/or modify 007 it under the terms of the GNU General Public License as published by 008 the Free Software Foundation; either version 2, or (at your option) 009 any later version. 010 011 GNU Classpath is distributed in the hope that it will be useful, but 012 WITHOUT ANY WARRANTY; without even the implied warranty of 013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 General Public License for more details. 015 016 You should have received a copy of the GNU General Public License 017 along with GNU Classpath; see the file COPYING. If not, write to the 018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 019 02110-1301 USA. 020 021 Linking this library statically or dynamically with other modules is 022 making a combined work based on this library. Thus, the terms and 023 conditions of the GNU General Public License cover the whole 024 combination. 025 026 As a special exception, the copyright holders of this library give you 027 permission to link this library with independent modules to produce an 028 executable, regardless of the license terms of these independent 029 modules, and to copy and distribute the resulting executable under 030 terms of your choice, provided that you also meet, for each linked 031 independent module, the terms and conditions of the license of that 032 module. An independent module is a module which is not derived from 033 or based on this library. If you modify this library, you may extend 034 this exception to your version of the library, but you are not 035 obligated to do so. If you do not wish to do so, delete this 036 exception statement from your version. */ 037 038 package java.security; 039 040 /** 041 * <code>Signer</code> is a subclass of {@link Identity}. It is used to store a 042 * digital signature key with an <i>Identity</i>. 043 * 044 * @author Mark Benvenuto (ivymccough@worldnet.att.net) 045 * @deprecated Replaced by <code>java.security.KeyStore</code>, the 046 * <code>java.security.cert</code> package, and <code>java.security.Principal</code>. 047 */ 048 public abstract class Signer extends Identity 049 { 050 private static final long serialVersionUID = -1763464102261361480L; 051 private PrivateKey privateKey = null; 052 053 /** Trivial constructor for serialization purposes. */ 054 protected Signer() 055 { 056 } 057 058 /** 059 * Constructs a new instance of <code>Signer</code> with the specified 060 * identity name. 061 * 062 * @param name 063 * the name of the identity to use. 064 */ 065 public Signer(String name) 066 { 067 super(name); 068 } 069 070 /** 071 * Constructs a new instance of <code>Signer</code> with the specified 072 * identity name and {@link IdentityScope}. 073 * 074 * @param name 075 * the name of the the identity to use. 076 * @param scope 077 * the {@link IdentityScope} to use. 078 * @throws KeyManagementException 079 * if a duplicate identity <code>name</code> exists within 080 * <code>scope</code>. 081 */ 082 public Signer(String name, IdentityScope scope) throws KeyManagementException 083 { 084 super(name, scope); 085 } 086 087 /** 088 * Returns the private key of this <code>Signer</code>. 089 * 090 * @returns the private key of this <code>Signer</code>. 091 * @throws SecurityException 092 * if a {@link SecurityManager} is installed which disallows this 093 * operation. 094 */ 095 public PrivateKey getPrivateKey() 096 { 097 SecurityManager sm = System.getSecurityManager(); 098 if (sm != null) 099 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 */ 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>. */ 144 public String toString() 145 { 146 return (getName() + ": " + privateKey); 147 } 148 }