143 lines
3.7 KiB
Java
143 lines
3.7 KiB
Java
/* Signer.java --- Signer Class
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Copyright (C) 1999 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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As a special exception, if you link this library with other files to
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produce an executable, this library does not by itself cause the
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resulting executable to be covered by the GNU General Public License.
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This exception does not however invalidate any other reasons why the
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executable file might be covered by the GNU General Public License. */
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package java.security;
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/**
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Signer is a subclass used to store a digital signature key with
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an Identity.
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@author Mark Benvenuto <ivymccough@worldnet.att.net>
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@since JDK 1.1
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*/
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public abstract class Signer extends Identity
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{
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private PrivateKey privateKey = null;
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/**
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Constructs a new Signer.
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*/
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protected Signer()
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{
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}
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/**
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Constructs a new Signer with the specified name.
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@param name the name of the identity.
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*/
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public Signer(String name)
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{
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super(name);
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}
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/**
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Constructs a new Signer with the specifid name and
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IdentityScope.
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@param name the name of the identity.
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@scope the IdentityScope to use
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@throws KeyManagementException if duplicate identity name
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within scope
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*/
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public Signer(String name, IdentityScope scope)
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throws KeyManagementException
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{
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super(name, scope);
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}
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/**
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Returns the private key for this signer.
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This class checks the security manager with the call
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checkSecurityAccess with "getSignerPrivateKey".
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@returns the private key for the signer
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@throws SecurityException - if the security manager denies
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access to "getSignerPrivateKey"
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*/
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public PrivateKey getPrivateKey()
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{
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SecurityManager sm = System.getSecurityManager();
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if (sm != null)
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sm.checkSecurityAccess("getSignerPrivateKey");
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return privateKey;
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}
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/**
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Specifies the KeyPair associated with this Signer.
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This class checks the security manager with the call
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checkSecurityAccess with "setSignerKeyPair".
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@param pair the keyPair
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@throws InvalidParameterException invalidly intialized key pair
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@throws KeyException another key error
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@throws SecurityException - if the security manager denies
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access to "getSignerPrivateKey"
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*/
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public final void setKeyPair(KeyPair pair)
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throws InvalidParameterException, KeyException
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{
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SecurityManager sm = System.getSecurityManager();
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if (sm != null)
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sm.checkSecurityAccess("setSignerKeyPair");
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try
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{
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if (pair.getPublic() != null)
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setPublicKey(pair.getPublic());
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else
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throw new InvalidParameterException();
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}
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catch (KeyManagementException kme)
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{
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throw new KeyException();
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}
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if (pair.getPrivate() != null)
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privateKey = pair.getPrivate();
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else
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throw new InvalidParameterException();
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}
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/**
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Returns a string representing this Signer.
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@returns a string representing this Signer.
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*/
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public String toString()
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{
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return (getName() + ": " + privateKey);
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}
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}
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