/* * Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */package sun.security.x509;import java.io.IOException;import java.io.OutputStream;import java.util.Enumeration;import sun.security.util.*;/** * Represent the Subject Key Identifier Extension. * * This extension, if present, provides a means of identifying the particular * public key used in an application. This extension by default is marked * non-critical. * * <p>Extensions are addiitonal attributes which can be inserted in a X509 * v3 certificate. For example a "Driving License Certificate" could have * the driving license number as a extension. * * <p>Extensions are represented as a sequence of the extension identifier * (Object Identifier), a boolean flag stating whether the extension is to * be treated as being critical and the extension value itself (this is again * a DER encoding of the extension value). * * @author Amit Kapoor * @author Hemma Prafullchandra * @see Extension * @see CertAttrSet */public class SubjectKeyIdentifierExtension extends Extensionimplements CertAttrSet<String> { /** * Identifier for this attribute, to be used with the * get, set, delete methods of Certificate, x509 type. */ public static final String IDENT = "x509.info.extensions.SubjectKeyIdentifier"; /** * Attribute names. */ public static final String NAME = "SubjectKeyIdentifier"; public static final String KEY_ID = "key_id"; // Private data member private KeyIdentifier id = null; // Encode this extension value private void encodeThis() throws IOException { if (id == null) { this.extensionValue = null; return; } DerOutputStream os = new DerOutputStream(); id.encode(os); this.extensionValue = os.toByteArray(); } /** * Create a SubjectKeyIdentifierExtension with the passed octet string. * The criticality is set to False. * @param octetString the octet string identifying the key identifier. */ public SubjectKeyIdentifierExtension(byte[] octetString) throws IOException { id = new KeyIdentifier(octetString); this.extensionId = PKIXExtensions.SubjectKey_Id; this.critical = false; encodeThis(); } /** * Create the extension from the passed DER encoded value. * * @param critical true if the extension is to be treated as critical. * @param value an array of DER encoded bytes of the actual value. * @exception ClassCastException if value is not an array of bytes * @exception IOException on error. */ public SubjectKeyIdentifierExtension(Boolean critical, Object value) throws IOException { this.extensionId = PKIXExtensions.SubjectKey_Id; this.critical = critical.booleanValue(); this.extensionValue = (byte[]) value; DerValue val = new DerValue(this.extensionValue); this.id = new KeyIdentifier(val); } /** * Returns a printable representation. */ public String toString() { return super.toString() + "SubjectKeyIdentifier [\n" + String.valueOf(id) + "]\n"; } /** * Write the extension to the OutputStream. * * @param out the OutputStream to write the extension to. * @exception IOException on encoding errors. */ public void encode(OutputStream out) throws IOException { DerOutputStream tmp = new DerOutputStream(); if (extensionValue == null) { extensionId = PKIXExtensions.SubjectKey_Id; critical = false; encodeThis(); } super.encode(tmp); out.write(tmp.toByteArray()); } /** * Set the attribute value. */ public void set(String name, Object obj) throws IOException { if (name.equalsIgnoreCase(KEY_ID)) { if (!(obj instanceof KeyIdentifier)) { throw new IOException("Attribute value should be of" + " type KeyIdentifier."); } id = (KeyIdentifier)obj; } else { throw new IOException("Attribute name not recognized by " + "CertAttrSet:SubjectKeyIdentifierExtension."); } encodeThis(); } /** * Get the attribute value. */ public Object get(String name) throws IOException { if (name.equalsIgnoreCase(KEY_ID)) { return (id); } else { throw new IOException("Attribute name not recognized by " + "CertAttrSet:SubjectKeyIdentifierExtension."); } } /** * Delete the attribute value. */ public void delete(String name) throws IOException { if (name.equalsIgnoreCase(KEY_ID)) { id = null; } else { throw new IOException("Attribute name not recognized by " + "CertAttrSet:SubjectKeyIdentifierExtension."); } encodeThis(); } /** * Return an enumeration of names of attributes existing within this * attribute. */ public Enumeration<String> getElements() { AttributeNameEnumeration elements = new AttributeNameEnumeration(); elements.addElement(KEY_ID); return (elements.elements()); } /** * Return the name of this attribute. */ public String getName() { return (NAME); }}
/*
* Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.security.x509;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Enumeration;
import sun.security.util.*;
/**
* Represent the Subject Key Identifier Extension.
*
* This extension, if present, provides a means of identifying the particular
* public key used in an application. This extension by default is marked
* non-critical.
*
* <p>Extensions are addiitonal attributes which can be inserted in a X509
* v3 certificate. For example a "Driving License Certificate" could have
* the driving license number as a extension.
*
* <p>Extensions are represented as a sequence of the extension identifier
* (Object Identifier), a boolean flag stating whether the extension is to
* be treated as being critical and the extension value itself (this is again
* a DER encoding of the extension value).
*
* @author Amit Kapoor
* @author Hemma Prafullchandra
* @see Extension
* @see CertAttrSet
*/
public class SubjectKeyIdentifierExtension extends Extension
implements CertAttrSet<String> {
/**
* Identifier for this attribute, to be used with the
* get, set, delete methods of Certificate, x509 type.
*/
public static final String IDENT =
"x509.info.extensions.SubjectKeyIdentifier";
/**
* Attribute names.
*/
public static final String NAME = "SubjectKeyIdentifier";
public static final String KEY_ID = "key_id";
// Private data member
private KeyIdentifier id = null;
// Encode this extension value
private void encodeThis() throws IOException {
if (id == null) {
this.extensionValue = null;
return;
}
DerOutputStream os = new DerOutputStream();
id.encode(os);
this.extensionValue = os.toByteArray();
}
/**
* Create a SubjectKeyIdentifierExtension with the passed octet string.
* The criticality is set to False.
* @param octetString the octet string identifying the key identifier.
*/
public SubjectKeyIdentifierExtension(byte[] octetString)
throws IOException {
id = new KeyIdentifier(octetString);
this.extensionId = PKIXExtensions.SubjectKey_Id;
this.critical = false;
encodeThis();
}
/**
* Create the extension from the passed DER encoded value.
*
* @param critical true if the extension is to be treated as critical.
* @param value an array of DER encoded bytes of the actual value.
* @exception ClassCastException if value is not an array of bytes
* @exception IOException on error.
*/
public SubjectKeyIdentifierExtension(Boolean critical, Object value)
throws IOException {
this.extensionId = PKIXExtensions.SubjectKey_Id;
this.critical = critical.booleanValue();
this.extensionValue = (byte[]) value;
DerValue val = new DerValue(this.extensionValue);
this.id = new KeyIdentifier(val);
}
/**
* Returns a printable representation.
*/
public String toString() {
return super.toString() + "SubjectKeyIdentifier [\n"
+ String.valueOf(id) + "]\n";
}
/**
* Write the extension to the OutputStream.
*
* @param out the OutputStream to write the extension to.
* @exception IOException on encoding errors.
*/
public void encode(OutputStream out) throws IOException {
DerOutputStream tmp = new DerOutputStream();
if (extensionValue == null) {
extensionId = PKIXExtensions.SubjectKey_Id;
critical = false;
encodeThis();
}
super.encode(tmp);
out.write(tmp.toByteArray());
}
/**
* Set the attribute value.
*/
public void set(String name, Object obj) throws IOException {
if (name.equalsIgnoreCase(KEY_ID)) {
if (!(obj instanceof KeyIdentifier)) {
throw new IOException("Attribute value should be of" +
" type KeyIdentifier.");
}
id = (KeyIdentifier)obj;
} else {
throw new IOException("Attribute name not recognized by " +
"CertAttrSet:SubjectKeyIdentifierExtension.");
}
encodeThis();
}
/**
* Get the attribute value.
*/
public Object get(String name) throws IOException {
if (name.equalsIgnoreCase(KEY_ID)) {
return (id);
} else {
throw new IOException("Attribute name not recognized by " +
"CertAttrSet:SubjectKeyIdentifierExtension.");
}
}
/**
* Delete the attribute value.
*/
public void delete(String name) throws IOException {
if (name.equalsIgnoreCase(KEY_ID)) {
id = null;
} else {
throw new IOException("Attribute name not recognized by " +
"CertAttrSet:SubjectKeyIdentifierExtension.");
}
encodeThis();
}
/**
* Return an enumeration of names of attributes existing within this
* attribute.
*/
public Enumeration<String> getElements() {
AttributeNameEnumeration elements = new AttributeNameEnumeration();
elements.addElement(KEY_ID);
return (elements.elements());
}
/**
* Return the name of this attribute.
*/
public String getName() {
return (NAME);
}
}