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 02:00:43 +0200 (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 }