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375 lines
10 KiB
Java
375 lines
10 KiB
Java
/* Identity.java --- Identity 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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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.security;
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import java.io.Serializable;
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import java.util.Vector;
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/**
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The Identity class is used to repsent people and companies that
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can be authenticated using public key encryption. The identities
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can also be abstract objects such as smart cards.
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Identity object store a name and public key for each identity.
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The names cannot be changed and the identities can be scoped.
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Each identity (name and public key) within a scope is unique
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to that scope.
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Each identity has a set of ceritificates which all specify the
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same public key but not necessarily the same name.
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The Identity class can be subclassed to allow additional
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information to be attached to it.
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@since JDK 1.1
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@deprecated Use java.security.KeyStore, the java.security.cert
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package, and java.security.Principal.
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@author Mark Benvenuto
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*/
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public abstract class Identity implements Principal, Serializable
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{
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private String name;
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private IdentityScope scope;
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private PublicKey publicKey;
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private String info;
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private Vector certificates;
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/**
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Creates a new instance of Identity from Serialized Data
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*/
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protected Identity()
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{
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}
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/**
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Creates a new instance of Identity with the specified name
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and IdentityScope.
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@param name the name to use
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@param scope the scope to use
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@throws KeyManagementException if the identity is already
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present
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*/
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public Identity(String name, IdentityScope scope)
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throws KeyManagementException
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{
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this.name = name;
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this.scope = scope;
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}
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/**
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Creates a new instance of Identity with the specified name
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and no scope.
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@param name the name to use
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*/
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public Identity(String name)
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{
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this.name = name;
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this.scope = null;
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}
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/**
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Gets the name for this Identity.
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@return the name
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*/
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public final String getName()
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{
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return name;
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}
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/**
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Gets the scope for this Identity.
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@return the scope
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*/
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public final IdentityScope getScope()
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{
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return scope;
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}
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/**
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Gets the public key for this identity.
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@return the public key
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*/
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public PublicKey getPublicKey()
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{
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return publicKey;
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}
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/**
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Sets the public key for this identity.
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The old key and all certificates are removed.
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This class checks the security manager with the call
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checkSecurityAccess with "setIdentityPublicKey".
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@param key the public key to use
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@throws KeyManagementException if this public key is used by
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another identity in the current scope.
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@throws SecurityException - if the security manager denies
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access to "setIdentityPublicKey"
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*/
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public void setPublicKey(PublicKey key) throws KeyManagementException
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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("setIdentityPublicKey");
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this.publicKey = key;
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}
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/**
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Sets the general information string.
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This class checks the security manager with the call
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checkSecurityAccess with "setIdentityInfo".
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@param info the general information string.
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@throws SecurityException - if the security manager denies
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access to "setIdentityInfo"
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*/
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public void setInfo(String info)
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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("setIdentityInfo");
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this.info = info;
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}
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/**
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Gets the general information string.
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@return the string
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*/
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public String getInfo()
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{
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return info;
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}
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/**
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Adds a certificate to the list of ceritificates for this
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identity. The public key in this certificate must match the
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existing public key if it exists.
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This class checks the security manager with the call
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checkSecurityAccess with "addIdentityCertificate".
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@param certificate the certificate to add
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@throws KeyManagementException if the certificate is invalid
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or the public key conflicts
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@throws SecurityException - if the security manager denies
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access to "addIdentityCertificate"
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*/
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public void addCertificate(java.security.Certificate certificate)
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throws KeyManagementException
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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("addIdentityCertificate");
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//Check public key of this certificate against the first one
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//in the vector
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if (certificates.size() > 0)
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{
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if (((Certificate) certificates.firstElement()).getPublicKey() !=
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publicKey)
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throw new KeyManagementException("Public key does not match");
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}
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certificates.addElement(certificate);
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}
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/**
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Removes a certificate from the list of ceritificates for this
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identity.
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This class checks the security manager with the call
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checkSecurityAccess with "removeIdentityCertificate".
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@param certificate the certificate to add
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@throws KeyManagementException if the certificate is invalid
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@throws SecurityException - if the security manager denies
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access to "removeIdentityCertificate"
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*/
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public void removeCertificate(Certificate certificate)
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throws KeyManagementException
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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("removeIdentityCertificate");
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if (certificates.contains(certificate) == false)
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throw new KeyManagementException("Certificate not found");
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certificates.removeElement(certificate);
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}
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/**
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Returns an array of certificates for this identity.
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@returns array of certificates
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*/
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public Certificate[] certificates()
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{
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Certificate certs[] = new Certificate[certificates.size()];
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int max = certificates.size();
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for (int i = 0; i < max; i++)
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certs[i] = (Certificate) certificates.elementAt(i);
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return certs;
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}
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/**
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Checks for equality between this Identity and the specified
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object. If first checks if they are the same object, then
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if the name and scope matches and returns true if successful.
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If these tests fail, identityEquals is called.
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@return true if they are equal, false otherwise
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*/
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public final boolean equals(Object identity)
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{
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if (identity instanceof Identity)
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{
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if (identity == this)
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return true;
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if ((((Identity) identity).getName() == this.name) &&
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(((Identity) identity).getScope() == this.scope))
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return true;
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return identityEquals((Identity) identity);
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}
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return false;
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}
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/**
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Checks for equality between this Identity and the specified
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object. A subclass should override this method. The default
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behavior is to return true if the public key and names match.
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@return true if they are equal, false otherwise
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*/
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protected boolean identityEquals(Identity identity)
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{
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return ((identity.getName() == this.name) &&
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(identity.getPublicKey() == this.publicKey));
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}
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/**
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Returns a string representing this Identity.
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This class checks the security manager with the call
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checkSecurityAccess with "printIdentity".
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@returns a string representing this Identity.
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@throws SecurityException - if the security manager denies
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access to "printIdentity"
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*/
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public String toString()
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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("printIdentity");
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/* TODO: Insert proper format here */
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return (name + ":@" + scope + " Public Key: " + publicKey);
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}
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/**
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Returns a detailed string representing this Identity.
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This class checks the security manager with the call
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checkSecurityAccess with "printIdentity".
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@param detailed indicates whether or not to provide detailed
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information
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@returns a string representing this Identity.
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@throws SecurityException - if the security manager denies
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access to "printIdentity"
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*/
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public String toString(boolean detailed)
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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("printIdentity");
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if (detailed)
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{
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/* TODO: Insert proper detailed format here */
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return (name + ":@" + scope + " Public Key: " + publicKey);
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}
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else
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{
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/* TODO: Insert proper format here */
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return (name + ":@" + scope + " Public Key: " + publicKey);
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}
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}
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/**
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Gets the hashcode for this Identity.
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@returns the hashcode
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*/
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public int hashCode()
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{
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int ret = name.hashCode();
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if (publicKey != null)
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ret |= publicKey.hashCode();
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if (scope != null)
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ret |= scope.hashCode();
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if (info != null)
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ret |= info.hashCode();
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if (certificates != null)
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ret |= certificates.hashCode();
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return ret;
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}
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}
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