001/* Signer.java --- Signer Class 002 Copyright (C) 1999, 2003, Free Software Foundation, Inc. 003 004This file is part of GNU Classpath. 005 006GNU Classpath is free software; you can redistribute it and/or modify 007it under the terms of the GNU General Public License as published by 008the Free Software Foundation; either version 2, or (at your option) 009any later version. 010 011GNU Classpath is distributed in the hope that it will be useful, but 012WITHOUT ANY WARRANTY; without even the implied warranty of 013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014General Public License for more details. 015 016You should have received a copy of the GNU General Public License 017along with GNU Classpath; see the file COPYING. If not, write to the 018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 01902110-1301 USA. 020 021Linking this library statically or dynamically with other modules is 022making a combined work based on this library. Thus, the terms and 023conditions of the GNU General Public License cover the whole 024combination. 025 026As a special exception, the copyright holders of this library give you 027permission to link this library with independent modules to produce an 028executable, regardless of the license terms of these independent 029modules, and to copy and distribute the resulting executable under 030terms of your choice, provided that you also meet, for each linked 031independent module, the terms and conditions of the license of that 032module. An independent module is a module which is not derived from 033or based on this library. If you modify this library, you may extend 034this exception to your version of the library, but you are not 035obligated to do so. If you do not wish to do so, delete this 036exception statement from your version. */ 037 038package 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 */ 048public 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}