/*
* 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.directory.server.kerberos.shared.io.decoder;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.Set;
import org.apache.directory.server.kerberos.shared.crypto.encryption.EncryptionType;
import org.apache.directory.shared.asn1.der.DEREncodable;
import org.apache.directory.shared.asn1.der.DERInteger;
import org.apache.directory.shared.asn1.der.DERSequence;
/**
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
* @version $Rev: 590715 $, $Date: 2007-10-31 16:23:32 +0100 (Mer, 31 oct 2007) $
*/
public class EncryptionTypeDecoder
{
/**
* etype[8] SEQUENCE OF INTEGER, -- EncryptionType,
* -- in preference order
*/
protected static Set<EncryptionType> decode( DERSequence sequence )
{
Set<EncryptionType> eTypes = new HashSet<EncryptionType>( sequence.size() );
int ii = 0;
for ( Enumeration<DEREncodable> e = sequence.getObjects(); e.hasMoreElements(); )
{
DERInteger object = ( DERInteger ) e.nextElement();
eTypes.add( EncryptionType.getTypeByOrdinal( object.intValue() ) );
ii++;
}
return eTypes;
}
}