001/* SecurityPermission.java -- Class for named security permissions 002 Copyright (C) 1998, 2002 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 * This class provides a mechanism for specified named permissions 042 * related to the Java security framework. These permissions have no 043 * associated actions list. They are either granted or not granted. 044 * 045 * <p>The list of valid permission names is:<br> 046 * <table border=1> 047 * <tr><th>Permission Name</th><th>Permission Allows</th><th>Risks</th</tr> 048 * <tr> 049 * <td><code>createAccessControlContext</code></td> 050 * <td>Allows creation of an AccessControlContext</td> 051 * <td>The new control context can have a rogue DomainCombiner, leading 052 * to a privacy leak</td></tr> 053 * <tr> 054 * <td><code>getDomainCombiner</code></td> 055 * <td>Get a DomainCombiner from an AccessControlContext</td> 056 * <td>Access to a DomainCombiner can lead to a privacy leak</td></tr> 057 * <tr> 058 * <td><code>getPolicy</code></td> 059 * <td>Allows retrieval of the system security policy</td> 060 * <td>Malicious code can use information from the policy to better plan 061 * an attack</td></tr> 062 * <tr> 063 * <td><code>setPolicy</code></td> 064 * <td>Allows the security policy to be changed</td> 065 * <td>Malicious code can give itself any permission it wants</td></tr> 066 * <tr> 067 * <td><code>getProperty.</code><em>key</em></td> 068 * <td>Retrieve the property specified by the key</td> 069 * <td>Malicious code can use information from the property to better plan 070 * an attack</td></tr> 071 * <tr> 072 * <td><code>setProperty.</code><em>key</em></td> 073 * <td>Allows changing of the value of all properties implied by key</td> 074 * <td>Malicious code can insert rogue classes to steal keys or recreate 075 * the security policy with whatever permissions it desires</td></tr> 076 * <tr> 077 * <td><code>insertProvider.</code><em>key</em></td> 078 * <td>Allows the named provider to be added</td> 079 * <td>Malicious code can insert rogue providers that steal data</td></tr> 080 * <tr> 081 * <td><code>removeProvider.</code><em>key</em></td> 082 * <td>Allows the named provider to be removed</td> 083 * <td>A missing provider can cripple code that relies on it</td></tr> 084 * <tr> 085 * <td><code>setSystemScope</code></td> 086 * <td>Allows the system identity scope to be set</td> 087 * <td>Malicious code can add certificates not available in the original 088 * identity scope, to gain more permissions</td></tr> 089 * <tr> 090 * <td><code>setIdentityPublicKey</code></td> 091 * <td>Allows the public key of an Identity to be set</td> 092 * <td>Malicious code can install its own key to gain permissions not 093 * allowed by the original identity scope</td></tr> 094 * <tr> 095 * <td><code>SetIdentityInfo</code></td> 096 * <td>Allows the description of an Identity to be set</td> 097 * <td>Malicious code can spoof users into trusting a fake identity</td></tr> 098 * <tr> 099 * <td><code>addIdentityCertificate</code></td> 100 * <td>Allows a certificate to be set for the public key of an identity</td> 101 * <td>The public key can become trusted to a wider audience than originally 102 * intended</td></tr> 103 * <tr> 104 * <td><code>removeIdentityCertificate</code></td> 105 * <td>Allows removal of a certificate from an identity's public key</td> 106 * <td>The public key can become less trusted than it should be</td></tr> 107 * <tr> 108 * <td><code>printIdentity</code></td> 109 * <td>View the name of the identity and scope, and whether they are 110 * trusted</td> 111 * <td>The scope may include a filename, which provides an entry point for 112 * further security breaches</td></tr> 113 * <tr> 114 * <td><code>clearProviderProperties.</code><em>key</em></td> 115 * <td>Allows the properties of the named provider to be cleared</td> 116 * <td>This can disable parts of the program which depend on finding the 117 * provider</td></tr> 118 * <tr> 119 * <td><code>putProviderProperty.</code><em>key</em></td> 120 * <td>Allows the properties of the named provider to be changed</td> 121 * <td>Malicious code can replace the implementation of a provider</td></tr> 122 * <tr> 123 * <td><code>removeProviderProperty.</code><em>key</em></td> 124 * <td>Allows the properties of the named provider to be deleted</td> 125 * <td>This can disable parts of the program which depend on finding the 126 * provider</td></tr> 127 * <tr> 128 * <td><code>getSignerPrivateKey</code></td> 129 * <td>Allows the retrieval of the private key for a signer</td> 130 * <td>Anyone that can access the private key can claim to be the 131 * Signer</td></tr> 132 * <tr> 133 * <td><code>setSignerKeyPair</code></td> 134 * <td>Allows the public and private key of a Signer to be changed</td> 135 * <td>The replacement might be a weaker encryption, or the attacker 136 * can use knowledge of the replaced key to decrypt an entire 137 * communication session</td></tr> 138 * </table> 139 * 140 * <p>There is some degree of security risk in granting any of these 141 * permissions. Some of them can completely compromise system security. 142 * Please exercise extreme caution in granting these permissions. 143 * 144 * @author Aaron M. Renn (arenn@urbanophile.com) 145 * @see Permission 146 * @see SecurityManager 147 * @since 1.1 148 * @status updated to 1.4 149 */ 150public final class SecurityPermission extends BasicPermission 151{ 152 /** 153 * Compatible with JDK 1.1+. 154 */ 155 private static final long serialVersionUID = 5236109936224050470L; 156 157 /** 158 * Create a new instance with the specified name. 159 * 160 * @param name the name to assign to this permission 161 */ 162 public SecurityPermission(String name) 163 { 164 super(name); 165 } 166 167 /** 168 * Create a new instance with the specified name. As SecurityPermission 169 * carries no actions, the second parameter is ignored. 170 * 171 * @param name the name to assign to this permission 172 * @param actions ignored 173 */ 174 public SecurityPermission(String name, String actions) 175 { 176 super(name); 177 } 178} // class SecurityPermission