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/*
* 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 "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.apache.harmony.security.x509;
import java.io.IOException;
import org.apache.harmony.security.asn1.ASN1OctetString;
import org.apache.harmony.security.utils.Array;
/**
* Subject Key Identifier Extension (OID = 2.5.29.14).
*
* The ASN.1 definition for extension is:
*
* <pre>
* id-ce-subjectKeyIdentifier OBJECT IDENTIFIER ::= { id-ce 14 }
*
* SubjectKeyIdentifier ::= KeyIdentifier
*
* KeyIdentifier ::= OCTET STRING
* </pre>
* (as specified in RFC 3280 http://www.ietf.org/rfc/rfc3280.txt)
*/
public final class SubjectKeyIdentifier extends ExtensionValue {
// the value of key identifier
private final byte[] keyIdentifier;
/**
* Creates the object on the base of the value of key identifier.
*/
public SubjectKeyIdentifier(byte[] keyIdentifier) {
this.keyIdentifier = keyIdentifier;
}
/**
* Creates an object on the base of its encoded form.
*/
public static SubjectKeyIdentifier decode(byte[] encoding)
throws IOException {
SubjectKeyIdentifier res = new SubjectKeyIdentifier((byte[])
ASN1OctetString.getInstance().decode(encoding));
res.encoding = encoding;
return res;
}
/**
* The key identifier for this subject.
*/
public byte[] getKeyIdentifier() {
return keyIdentifier;
}
@Override public byte[] getEncoded() {
if (encoding == null) {
encoding = ASN1OctetString.getInstance().encode(keyIdentifier);
}
return encoding;
}
@Override public void dumpValue(StringBuilder sb, String prefix) {
sb.append(prefix).append("SubjectKeyIdentifier: [\n");
sb.append(Array.toString(keyIdentifier, prefix));
sb.append(prefix).append("]\n");
}
}
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