mirror of
https://github.com/openjdk/jdk.git
synced 2026-02-02 06:28:23 +00:00
246 lines
8.8 KiB
Java
246 lines
8.8 KiB
Java
/*
|
|
* Copyright (c) 1997, 2022, 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 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
|
|
*/
|
|
public class AuthorityKeyIdentifierExtension extends Extension {
|
|
|
|
public static final String NAME = "AuthorityKeyIdentifier";
|
|
|
|
// 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() {
|
|
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);
|
|
}
|
|
if (names != null) {
|
|
DerOutputStream tmp1 = new DerOutputStream();
|
|
names.encode(tmp1);
|
|
tmp.writeImplicit(DerValue.createTag(DerValue.TAG_CONTEXT,
|
|
true, TAG_NAMES), tmp1);
|
|
}
|
|
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. At least one parameter
|
|
* must be non null. Null parameters make the element optional (not present).
|
|
*
|
|
* @param kid the KeyIdentifier associated with this extension.
|
|
* @param names the GeneralNames associated with this extension
|
|
* @param sn the CertificateSerialNumber associated with
|
|
* this extension.
|
|
*/
|
|
public AuthorityKeyIdentifierExtension(KeyIdentifier kid, GeneralNames names,
|
|
SerialNumber sn) {
|
|
if (kid == null && names == null && sn == null) {
|
|
throw new IllegalArgumentException(
|
|
"AuthorityKeyIdentifierExtension cannot be empty");
|
|
}
|
|
this.id = kid;
|
|
this.names = names;
|
|
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() {
|
|
StringBuilder sb = new StringBuilder();
|
|
sb.append(super.toString())
|
|
.append("AuthorityKeyIdentifier [\n");
|
|
if (id != null) {
|
|
sb.append(id); // id already has a newline
|
|
}
|
|
if (names != null) {
|
|
sb.append(names).append('\n');
|
|
}
|
|
if (serialNum != null) {
|
|
sb.append(serialNum).append('\n');
|
|
}
|
|
sb.append("]\n");
|
|
return sb.toString();
|
|
}
|
|
|
|
/**
|
|
* Write the extension to the OutputStream.
|
|
*
|
|
* @param out the DerOutputStream to write the extension to.
|
|
*/
|
|
@Override
|
|
public void encode(DerOutputStream out) {
|
|
if (this.extensionValue == null) {
|
|
extensionId = PKIXExtensions.AuthorityKey_Id;
|
|
critical = false;
|
|
encodeThis();
|
|
}
|
|
super.encode(out);
|
|
}
|
|
|
|
public KeyIdentifier getKeyIdentifier() {
|
|
return id;
|
|
}
|
|
|
|
public GeneralNames getAuthName() {
|
|
return names;
|
|
}
|
|
|
|
public SerialNumber getSerialNumber() {
|
|
return serialNum;
|
|
}
|
|
|
|
|
|
/**
|
|
* Return the name of this extension.
|
|
*/
|
|
@Override
|
|
public String getName() {
|
|
return NAME;
|
|
}
|
|
|
|
/**
|
|
* Return the encoded key identifier, or null if not specified.
|
|
*/
|
|
public byte[] getEncodedKeyIdentifier() throws IOException {
|
|
if (id != null) {
|
|
DerOutputStream derOut = new DerOutputStream();
|
|
id.encode(derOut);
|
|
return derOut.toByteArray();
|
|
}
|
|
return null;
|
|
}
|
|
}
|