libjava/java/security/SecurityPermission.java

   1 /* SecurityPermission.java -- Class for named security permissions
   2    Copyright (C) 1998, 2002 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., 59 Temple Place, Suite 330, Boston, MA
  19 02111-1307 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  * This class provides a mechanism for specified named permissions
  42  * related to the Java security framework.  These permissions have no
  43  * associated actions list.  They are either granted or not granted.
  44  *
  45  * <p>The list of valid permission names is:<br>
  46  * <table border=1>
  47  * <tr><th>Permission Name</th><th>Permission Allows</th><th>Risks</th</tr>
  48  * <tr>
  49  *   <td><code>createAccessControlContext</code></td>
  50  *   <td>Allows creation of an AccessControlContext</td>
  51  *   <td>The new control context can have a rogue DomainCombiner, leading
  52  *       to a privacy leak</td></tr>
  53  * <tr>
  54  *   <td><code>getDomainCombiner</code></td>
  55  *   <td>Get a DomainCombiner from an AccessControlContext</td>
  56  *   <td>Access to a DomainCombiner can lead to a privacy leak</td></tr>
  57  * <tr>
  58  *   <td><code>getPolicy</code></td>
  59  *   <td>Allows retrieval of the system security policy</td>
  60  *   <td>Malicious code can use information from the policy to better plan
  61  *       an attack</td></tr>
  62  * <tr>
  63  *   <td><code>setPolicy</code></td>
  64  *   <td>Allows the security policy to be changed</td>
  65  *   <td>Malicious code can give itself any permission it wants</td></tr>
  66  * <tr>
  67  *   <td><code>getProperty.</code><em>key</em></td>
  68  *   <td>Retrieve the property specified by the key</td>
  69  *   <td>Malicious code can use information from the property to better plan
  70  *       an attack</td></tr>
  71  * <tr>
  72  *   <td><code>setProperty.</code><em>key</em></td>
  73  *   <td>Allows changing of the value of all properties implied by key</td>
  74  *   <td>Malicious code can insert rogue classes to steal keys or recreate
  75  *       the security policy with whatever permissions it desires</td></tr>
  76  * <tr>
  77  *   <td><code>insertProvider.</code><em>key</em></td>
  78  *   <td>Allows the named provider to be added</td>
  79  *   <td>Malicious code can insert rogue providers that steal data</td></tr>
  80  * <tr>
  81  *   <td><code>removeProvider.</code><em>key</em></td>
  82  *   <td>Allows the named provider to be removed</td>
  83  *   <td>A missing provider can cripple code that relies on it</td></tr>
  84  * <tr>
  85  *   <td><code>setSystemScope</code></td>
  86  *   <td>Allows the system identity scope to be set</td>
  87  *   <td>Malicious code can add certificates not available in the original
  88  *       identity scope, to gain more permissions</td></tr>
  89  * <tr>
  90  *   <td><code>setIdentityPublicKey</code></td>
  91  *   <td>Allows the public key of an Identity to be set</td>
  92  *   <td>Malicious code can install its own key to gain permissions not
  93  *       allowed by the original identity scope</td></tr>
  94  * <tr>
  95  *   <td><code>SetIdentityInfo</code></td>
  96  *   <td>Allows the description of an Identity to be set</td>
  97  *   <td>Malicious code can spoof users into trusting a fake identity</td></tr>
  98  * <tr>
  99  *   <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  */
 150 public 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