org.apache.wss4j.common.crypto.BouncyCastleUtils Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
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* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
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*/
package org.apache.wss4j.common.crypto;
import java.security.cert.X509Certificate;
import org.bouncycastle.asn1.ASN1OctetString;
import org.bouncycastle.asn1.x509.AuthorityKeyIdentifier;
import org.bouncycastle.asn1.x509.SubjectKeyIdentifier;
public final class BouncyCastleUtils {
private BouncyCastleUtils() {
// complete
}
public static byte[] getAuthorityKeyIdentifierBytes(X509Certificate cert) {
byte[] extensionValue = cert.getExtensionValue("2.5.29.35"); //NOPMD
if (extensionValue != null) {
byte[] octets = ASN1OctetString.getInstance(extensionValue).getOctets();
AuthorityKeyIdentifier authorityKeyIdentifier =
AuthorityKeyIdentifier.getInstance(octets);
return authorityKeyIdentifier.getKeyIdentifier();
}
return null;
}
public static byte[] getSubjectKeyIdentifierBytes(X509Certificate cert) {
byte[] extensionValue = cert.getExtensionValue("2.5.29.14"); //NOPMD
if (extensionValue != null) {
byte[] subjectOctets =
ASN1OctetString.getInstance(extensionValue).getOctets();
SubjectKeyIdentifier subjectKeyIdentifier =
SubjectKeyIdentifier.getInstance(subjectOctets);
return subjectKeyIdentifier.getKeyIdentifier();
}
return null;
}
}