001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied. See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 *
019 */
020 package org.apache.directory.server.kerberos.shared.io.encoder;
021
022
023 import org.apache.directory.server.kerberos.shared.messages.value.Checksum;
024 import org.apache.directory.shared.asn1.der.DERInteger;
025 import org.apache.directory.shared.asn1.der.DEROctetString;
026 import org.apache.directory.shared.asn1.der.DERSequence;
027 import org.apache.directory.shared.asn1.der.DERTaggedObject;
028
029
030 /**
031 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
032 * @version $Rev: 540371 $, $Date: 2007-05-22 03:00:43 +0300 (Tue, 22 May 2007) $
033 */
034 public class ChecksumEncoder
035 {
036 /**
037 * Encodes a {@link Checksum} into a {@link DERSequence}.
038 *
039 * Checksum ::= SEQUENCE {
040 * cksumtype[0] INTEGER,
041 * checksum[1] OCTET STRING
042 * }
043 *
044 * @param checksum
045 * @return The {@link DERSequence}.
046 */
047 public static DERSequence encode( Checksum checksum )
048 {
049 DERSequence vector = new DERSequence();
050
051 vector.add( new DERTaggedObject( 0, DERInteger.valueOf( checksum.getChecksumType().getOrdinal() ) ) );
052 vector.add( new DERTaggedObject( 1, new DEROctetString( checksum.getChecksumValue() ) ) );
053
054 return vector;
055 }
056 }