1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20 package org.apache.directory.server.kerberos.shared.io.encoder;
21
22
23 import org.apache.directory.server.kerberos.shared.messages.value.Checksum;
24 import org.apache.directory.shared.asn1.der.DERInteger;
25 import org.apache.directory.shared.asn1.der.DEROctetString;
26 import org.apache.directory.shared.asn1.der.DERSequence;
27 import org.apache.directory.shared.asn1.der.DERTaggedObject;
28
29
30 /**
31 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
32 * @version $Rev: 540371 $, $Date: 2007-05-22 02:00:43 +0200 (Di, 22 Mai 2007) $
33 */
34 public class ChecksumEncoder
35 {
36 /**
37 * Encodes a {@link Checksum} into a {@link DERSequence}.
38 *
39 * Checksum ::= SEQUENCE {
40 * cksumtype[0] INTEGER,
41 * checksum[1] OCTET STRING
42 * }
43 *
44 * @param checksum
45 * @return The {@link DERSequence}.
46 */
47 public static DERSequence encode( Checksum checksum )
48 {
49 DERSequence vector = new DERSequence();
50
51 vector.add( new DERTaggedObject( 0, DERInteger.valueOf( checksum.getChecksumType().getOrdinal() ) ) );
52 vector.add( new DERTaggedObject( 1, new DEROctetString( checksum.getChecksumValue() ) ) );
53
54 return vector;
55 }
56 }