/* * Copyright (c) 1997, 2009, 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.*;/** * This class represents the Authority Key Identifier Extension. * * <p>The authority key identifier extension provides a means of * identifying the particular public key used to sign a certificate. * This extension would be used where an issuer has multiple signing * keys (either due to multiple concurrent key pairs or due to * changeover). * <p> * The ASN.1 syntax for this is: * <pre> * AuthorityKeyIdentifier ::= SEQUENCE { * keyIdentifier [0] KeyIdentifier OPTIONAL, * authorityCertIssuer [1] GeneralNames OPTIONAL, * authorityCertSerialNumber [2] CertificateSerialNumber OPTIONAL * } * KeyIdentifier ::= OCTET STRING * </pre> * @author Amit Kapoor * @author Hemma Prafullchandra * @see Extension * @see CertAttrSet */public class AuthorityKeyIdentifierExtension 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.AuthorityKeyIdentifier"; /** * Attribute names. */ public static final String NAME = "AuthorityKeyIdentifier"; public static final String KEY_ID = "key_id"; public static final String AUTH_NAME = "auth_name"; public static final String SERIAL_NUMBER = "serial_number"; // Private data members private static final byte TAG_ID = 0; private static final byte TAG_NAMES = 1; private static final byte TAG_SERIAL_NUM = 2; private KeyIdentifier id = null; private GeneralNames names = null; private SerialNumber serialNum = null; // Encode only the extension value private void encodeThis() throws IOException { if (id == null && names == null && serialNum == null) { this.extensionValue = null; return; } DerOutputStream seq = new DerOutputStream(); DerOutputStream tmp = new DerOutputStream(); if (id != null) { DerOutputStream tmp1 = new DerOutputStream(); id.encode(tmp1); tmp.writeImplicit(DerValue.createTag(DerValue.TAG_CONTEXT, false, TAG_ID), tmp1); } try { if (names != null) { DerOutputStream tmp1 = new DerOutputStream(); names.encode(tmp1); tmp.writeImplicit(DerValue.createTag(DerValue.TAG_CONTEXT, true, TAG_NAMES), tmp1); } } catch (Exception e) { throw new IOException(e.toString()); } if (serialNum != null) { DerOutputStream tmp1 = new DerOutputStream(); serialNum.encode(tmp1); tmp.writeImplicit(DerValue.createTag(DerValue.TAG_CONTEXT, false, TAG_SERIAL_NUM), tmp1); } seq.write(DerValue.tag_Sequence, tmp); this.extensionValue = seq.toByteArray(); } /** * The default constructor for this extension. Null parameters make * the element optional (not present). * * @param id the KeyIdentifier associated with this extension. * @param names the GeneralNames associated with this extension * @param serialNum the CertificateSerialNumber associated with * this extension. * @exception IOException on error. */ public AuthorityKeyIdentifierExtension(KeyIdentifier kid, GeneralNames name, SerialNumber sn) throws IOException { this.id = kid; this.names = name; this.serialNum = sn; this.extensionId = PKIXExtensions.AuthorityKey_Id; this.critical = false; encodeThis(); } /** * Create the extension from the passed DER encoded value of the same. * * @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 AuthorityKeyIdentifierExtension(Boolean critical, Object value) throws IOException { this.extensionId = PKIXExtensions.AuthorityKey_Id; this.critical = critical.booleanValue(); this.extensionValue = (byte[]) value; DerValue val = new DerValue(this.extensionValue); if (val.tag != DerValue.tag_Sequence) { throw new IOException("Invalid encoding for " + "AuthorityKeyIdentifierExtension."); } // Note that all the fields in AuthorityKeyIdentifier are defined as // being OPTIONAL, i.e., there could be an empty SEQUENCE, resulting // in val.data being null. while ((val.data != null) && (val.data.available() != 0)) { DerValue opt = val.data.getDerValue(); // NB. this is always encoded with the IMPLICIT tag // The checks only make sense if we assume implicit tagging, // with explicit tagging the form is always constructed. if (opt.isContextSpecific(TAG_ID) && !opt.isConstructed()) { if (id != null) throw new IOException("Duplicate KeyIdentifier in " + "AuthorityKeyIdentifier."); opt.resetTag(DerValue.tag_OctetString); id = new KeyIdentifier(opt); } else if (opt.isContextSpecific(TAG_NAMES) && opt.isConstructed()) { if (names != null) throw new IOException("Duplicate GeneralNames in " + "AuthorityKeyIdentifier."); opt.resetTag(DerValue.tag_Sequence); names = new GeneralNames(opt); } else if (opt.isContextSpecific(TAG_SERIAL_NUM) && !opt.isConstructed()) { if (serialNum != null) throw new IOException("Duplicate SerialNumber in " + "AuthorityKeyIdentifier."); opt.resetTag(DerValue.tag_Integer); serialNum = new SerialNumber(opt); } else throw new IOException("Invalid encoding of " + "AuthorityKeyIdentifierExtension."); } } /** * Return the object as a string. */ public String toString() { String s = super.toString() + "AuthorityKeyIdentifier [\n"; if (id != null) { s += id.toString(); // id already has a newline } if (names != null) { s += names.toString() + "\n"; } if (serialNum != null) { s += serialNum.toString() + "\n"; } return (s + "]\n"); } /** * Write the extension to the OutputStream. * * @param out the OutputStream to write the extension to. * @exception IOException on error. */ public void encode(OutputStream out) throws IOException { DerOutputStream tmp = new DerOutputStream(); if (this.extensionValue == null) { extensionId = PKIXExtensions.AuthorityKey_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 if (name.equalsIgnoreCase(AUTH_NAME)) { if (!(obj instanceof GeneralNames)) { throw new IOException("Attribute value should be of " + "type GeneralNames."); } names = (GeneralNames)obj; } else if (name.equalsIgnoreCase(SERIAL_NUMBER)) { if (!(obj instanceof SerialNumber)) { throw new IOException("Attribute value should be of " + "type SerialNumber."); } serialNum = (SerialNumber)obj; } else { throw new IOException("Attribute name not recognized by " + "CertAttrSet:AuthorityKeyIdentifier."); } encodeThis(); } /** * Get the attribute value. */ public Object get(String name) throws IOException { if (name.equalsIgnoreCase(KEY_ID)) { return (id); } else if (name.equalsIgnoreCase(AUTH_NAME)) { return (names); } else if (name.equalsIgnoreCase(SERIAL_NUMBER)) { return (serialNum); } else { throw new IOException("Attribute name not recognized by " + "CertAttrSet:AuthorityKeyIdentifier."); } } /** * Delete the attribute value. */ public void delete(String name) throws IOException { if (name.equalsIgnoreCase(KEY_ID)) { id = null; } else if (name.equalsIgnoreCase(AUTH_NAME)) { names = null; } else if (name.equalsIgnoreCase(SERIAL_NUMBER)) { serialNum = null; } else { throw new IOException("Attribute name not recognized by " + "CertAttrSet:AuthorityKeyIdentifier."); } encodeThis(); } /** * Return an enumeration of names of attributes existing within this * attribute. */ public Enumeration<String> getElements() { AttributeNameEnumeration elements = new AttributeNameEnumeration(); elements.addElement(KEY_ID); elements.addElement(AUTH_NAME); elements.addElement(SERIAL_NUMBER); return (elements.elements()); } /** * Return the name of this attribute. */ public String getName() { return (NAME); }}
/*
* Copyright (c) 1997, 2009, 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.*;
/**
* This class represents the Authority Key Identifier Extension.
*
* <p>The authority key identifier extension provides a means of
* identifying the particular public key used to sign a certificate.
* This extension would be used where an issuer has multiple signing
* keys (either due to multiple concurrent key pairs or due to
* changeover).
* <p>
* The ASN.1 syntax for this is:
* <pre>
* AuthorityKeyIdentifier ::= SEQUENCE {
* keyIdentifier [0] KeyIdentifier OPTIONAL,
* authorityCertIssuer [1] GeneralNames OPTIONAL,
* authorityCertSerialNumber [2] CertificateSerialNumber OPTIONAL
* }
* KeyIdentifier ::= OCTET STRING
* </pre>
* @author Amit Kapoor
* @author Hemma Prafullchandra
* @see Extension
* @see CertAttrSet
*/
public class AuthorityKeyIdentifierExtension 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.AuthorityKeyIdentifier";
/**
* Attribute names.
*/
public static final String NAME = "AuthorityKeyIdentifier";
public static final String KEY_ID = "key_id";
public static final String AUTH_NAME = "auth_name";
public static final String SERIAL_NUMBER = "serial_number";
// Private data members
private static final byte TAG_ID = 0;
private static final byte TAG_NAMES = 1;
private static final byte TAG_SERIAL_NUM = 2;
private KeyIdentifier id = null;
private GeneralNames names = null;
private SerialNumber serialNum = null;
// Encode only the extension value
private void encodeThis() throws IOException {
if (id == null && names == null && serialNum == null) {
this.extensionValue = null;
return;
}
DerOutputStream seq = new DerOutputStream();
DerOutputStream tmp = new DerOutputStream();
if (id != null) {
DerOutputStream tmp1 = new DerOutputStream();
id.encode(tmp1);
tmp.writeImplicit(DerValue.createTag(DerValue.TAG_CONTEXT,
false, TAG_ID), tmp1);
}
try {
if (names != null) {
DerOutputStream tmp1 = new DerOutputStream();
names.encode(tmp1);
tmp.writeImplicit(DerValue.createTag(DerValue.TAG_CONTEXT,
true, TAG_NAMES), tmp1);
}
} catch (Exception e) {
throw new IOException(e.toString());
}
if (serialNum != null) {
DerOutputStream tmp1 = new DerOutputStream();
serialNum.encode(tmp1);
tmp.writeImplicit(DerValue.createTag(DerValue.TAG_CONTEXT,
false, TAG_SERIAL_NUM), tmp1);
}
seq.write(DerValue.tag_Sequence, tmp);
this.extensionValue = seq.toByteArray();
}
/**
* The default constructor for this extension. Null parameters make
* the element optional (not present).
*
* @param id the KeyIdentifier associated with this extension.
* @param names the GeneralNames associated with this extension
* @param serialNum the CertificateSerialNumber associated with
* this extension.
* @exception IOException on error.
*/
public AuthorityKeyIdentifierExtension(KeyIdentifier kid, GeneralNames name,
SerialNumber sn)
throws IOException {
this.id = kid;
this.names = name;
this.serialNum = sn;
this.extensionId = PKIXExtensions.AuthorityKey_Id;
this.critical = false;
encodeThis();
}
/**
* Create the extension from the passed DER encoded value of the same.
*
* @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 AuthorityKeyIdentifierExtension(Boolean critical, Object value)
throws IOException {
this.extensionId = PKIXExtensions.AuthorityKey_Id;
this.critical = critical.booleanValue();
this.extensionValue = (byte[]) value;
DerValue val = new DerValue(this.extensionValue);
if (val.tag != DerValue.tag_Sequence) {
throw new IOException("Invalid encoding for " +
"AuthorityKeyIdentifierExtension.");
}
// Note that all the fields in AuthorityKeyIdentifier are defined as
// being OPTIONAL, i.e., there could be an empty SEQUENCE, resulting
// in val.data being null.
while ((val.data != null) && (val.data.available() != 0)) {
DerValue opt = val.data.getDerValue();
// NB. this is always encoded with the IMPLICIT tag
// The checks only make sense if we assume implicit tagging,
// with explicit tagging the form is always constructed.
if (opt.isContextSpecific(TAG_ID) && !opt.isConstructed()) {
if (id != null)
throw new IOException("Duplicate KeyIdentifier in " +
"AuthorityKeyIdentifier.");
opt.resetTag(DerValue.tag_OctetString);
id = new KeyIdentifier(opt);
} else if (opt.isContextSpecific(TAG_NAMES) &&
opt.isConstructed()) {
if (names != null)
throw new IOException("Duplicate GeneralNames in " +
"AuthorityKeyIdentifier.");
opt.resetTag(DerValue.tag_Sequence);
names = new GeneralNames(opt);
} else if (opt.isContextSpecific(TAG_SERIAL_NUM) &&
!opt.isConstructed()) {
if (serialNum != null)
throw new IOException("Duplicate SerialNumber in " +
"AuthorityKeyIdentifier.");
opt.resetTag(DerValue.tag_Integer);
serialNum = new SerialNumber(opt);
} else
throw new IOException("Invalid encoding of " +
"AuthorityKeyIdentifierExtension.");
}
}
/**
* Return the object as a string.
*/
public String toString() {
String s = super.toString() + "AuthorityKeyIdentifier [\n";
if (id != null) {
s += id.toString(); // id already has a newline
}
if (names != null) {
s += names.toString() + "\n";
}
if (serialNum != null) {
s += serialNum.toString() + "\n";
}
return (s + "]\n");
}
/**
* Write the extension to the OutputStream.
*
* @param out the OutputStream to write the extension to.
* @exception IOException on error.
*/
public void encode(OutputStream out) throws IOException {
DerOutputStream tmp = new DerOutputStream();
if (this.extensionValue == null) {
extensionId = PKIXExtensions.AuthorityKey_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 if (name.equalsIgnoreCase(AUTH_NAME)) {
if (!(obj instanceof GeneralNames)) {
throw new IOException("Attribute value should be of " +
"type GeneralNames.");
}
names = (GeneralNames)obj;
} else if (name.equalsIgnoreCase(SERIAL_NUMBER)) {
if (!(obj instanceof SerialNumber)) {
throw new IOException("Attribute value should be of " +
"type SerialNumber.");
}
serialNum = (SerialNumber)obj;
} else {
throw new IOException("Attribute name not recognized by " +
"CertAttrSet:AuthorityKeyIdentifier.");
}
encodeThis();
}
/**
* Get the attribute value.
*/
public Object get(String name) throws IOException {
if (name.equalsIgnoreCase(KEY_ID)) {
return (id);
} else if (name.equalsIgnoreCase(AUTH_NAME)) {
return (names);
} else if (name.equalsIgnoreCase(SERIAL_NUMBER)) {
return (serialNum);
} else {
throw new IOException("Attribute name not recognized by " +
"CertAttrSet:AuthorityKeyIdentifier.");
}
}
/**
* Delete the attribute value.
*/
public void delete(String name) throws IOException {
if (name.equalsIgnoreCase(KEY_ID)) {
id = null;
} else if (name.equalsIgnoreCase(AUTH_NAME)) {
names = null;
} else if (name.equalsIgnoreCase(SERIAL_NUMBER)) {
serialNum = null;
} else {
throw new IOException("Attribute name not recognized by " +
"CertAttrSet:AuthorityKeyIdentifier.");
}
encodeThis();
}
/**
* Return an enumeration of names of attributes existing within this
* attribute.
*/
public Enumeration<String> getElements() {
AttributeNameEnumeration elements = new AttributeNameEnumeration();
elements.addElement(KEY_ID);
elements.addElement(AUTH_NAME);
elements.addElement(SERIAL_NUMBER);
return (elements.elements());
}
/**
* Return the name of this attribute.
*/
public String getName() {
return (NAME);
}
}