org.wildfly.security.x500.cert.AuthorityKeyIdentifierExtension Maven / Gradle / Ivy
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* Copyright 2016 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.wildfly.security.x500.cert;
import java.math.BigInteger;
import java.util.List;
import org.wildfly.security.asn1.ASN1Encoder;
import org.wildfly.security.x500.GeneralName;
import org.wildfly.security.x500.X500;
/**
* Authority key identifier extension as defined by RFC 5280 § 4.2.1.1.
*
* @author David M. Lloyd
*/
public final class AuthorityKeyIdentifierExtension extends X509CertificateExtension {
private final byte[] keyIdentifier;
private final List generalNames;
private final BigInteger serialNumber;
/**
* Construct a new instance.
*
* @param keyIdentifier the key identifier to specify, or {@code null} to leave it out
* @param generalNames the list of general names to specify, or {@code null} to leave it out
* @param serialNumber the serial number to specify, or {@code null} to leave it out
*/
public AuthorityKeyIdentifierExtension(final byte[] keyIdentifier, final List generalNames, final BigInteger serialNumber) {
super(false);
this.keyIdentifier = keyIdentifier;
this.generalNames = generalNames;
this.serialNumber = serialNumber;
}
public String getId() {
return X500.OID_CE_AUTHORITY_KEY_IDENTIFIER;
}
public void encodeTo(final ASN1Encoder encoder) {
encoder.startSequence();
if (keyIdentifier != null) {
encoder.encodeImplicit(0);
encoder.encodeOctetString(keyIdentifier);
}
if (generalNames != null && ! generalNames.isEmpty()) {
encoder.encodeImplicit(1);
encoder.startSequence();
for (GeneralName generalName : generalNames) {
generalName.encodeTo(encoder);
}
encoder.endSequence();
}
if (serialNumber != null) {
encoder.encodeImplicit(2);
encoder.encodeInteger(serialNumber);
}
encoder.endSequence();
}
}