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Diffstat (limited to 'libjava/classpath/java/security/Signer.java')
-rw-r--r-- | libjava/classpath/java/security/Signer.java | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/libjava/classpath/java/security/Signer.java b/libjava/classpath/java/security/Signer.java new file mode 100644 index 0000000..ae1463d --- /dev/null +++ b/libjava/classpath/java/security/Signer.java @@ -0,0 +1,164 @@ +/* Signer.java --- Signer Class + Copyright (C) 1999, 2003, Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +package java.security; + +/** + * <p>This class is used to represent an {@link Identity} that can also + * digitally sign data.</p> + * + * <p>The management of a signer's private keys is an important and sensitive + * issue that should be handled by subclasses as appropriate to their intended + * use.</p> + * + * @author Mark Benvenuto (ivymccough@worldnet.att.net) + * @deprecated This class is no longer used. Its functionality has been replaced + * by <code>java.security.KeyStore</code>, the <code>java.security.cert</code> + * package, and <code>java.security.Principal</code>. + */ +public abstract class Signer extends Identity +{ + private static final long serialVersionUID = -1763464102261361480L; + private PrivateKey privateKey = null; + + /** + * Creates a <code>Signer</code>. This constructor should only be used for + * serialization. + */ + protected Signer() + { + } + + /** + * Creates a <code>Signer</code> with the specified identity name. + * + * @param name the identity name. + */ + public Signer(String name) + { + super(name); + } + + /** + * Creates a <code>Signer</code> with the specified identity name and scope. + * + * @param name the identity name. + * @param scope the scope of the identity. + * @throws KeyManagementException if there is already an identity with the + * same name in the scope. + */ + public Signer(String name, IdentityScope scope) throws KeyManagementException + { + super(name, scope); + } + + /** + * <p>Returns this signer's private key.</p> + * + * <p>First, if there is a security manager, its <code>checkSecurityAccess() + * </code> method is called with <code>"getSignerPrivateKey"</code> as its + * argument to see if it's ok to return the private key.</p> + * + * @return this signer's private key, or <code>null</code> if the private key + * has not yet been set. + * @throws SecurityException if a security manager exists and its + * <code>checkSecurityAccess()</code> method doesn't allow returning the + * private key. + * @see SecurityManager#checkSecurityAccess(String) + */ + public PrivateKey getPrivateKey() + { + SecurityManager sm = System.getSecurityManager(); + if (sm != null) + sm.checkSecurityAccess("getSignerPrivateKey"); + + return privateKey; + } + + /** + * <p>Sets the key pair (public key and private key) for this signer.</p> + * + * <p>First, if there is a security manager, its <code>checkSecurityAccess() + * </code> method is called with <code>"setSignerKeyPair"</code> as its + * argument to see if it's ok to set the key pair.</p> + * + * @param pair an initialized key pair. + * @throws InvalidParameterException if the key pair is not properly + * initialized. + * @throws KeyException if the key pair cannot be set for any other reason. + * @throws SecurityException if a security manager exists and its + * <code>checkSecurityAccess()</code> method doesn't allow setting the key + * pair. + * @see SecurityManager#checkSecurityAccess(String) + */ + public final void setKeyPair(KeyPair pair) + throws InvalidParameterException, KeyException + { + SecurityManager sm = System.getSecurityManager(); + if (sm != null) + sm.checkSecurityAccess("setSignerKeyPair"); + + try + { + if (pair.getPublic() != null) + setPublicKey(pair.getPublic()); + else + throw new InvalidParameterException(); + + } + catch (KeyManagementException kme) + { + throw new KeyException(); + } + + if (pair.getPrivate() != null) + privateKey = pair.getPrivate(); + else + throw new InvalidParameterException(); + } + + /** + * Returns a string of information about the signer. + * + * @return a string of information about the signer. + * @see SecurityManager#checkSecurityAccess(String) + */ + public String toString() + { + return (getName() + ": " + privateKey); + } +} |