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.crypto.checksum; 21 22 23 import java.security.MessageDigest; 24 import java.security.NoSuchAlgorithmException; 25 26 import org.apache.directory.server.kerberos.shared.crypto.encryption.KeyUsage; 27 import org.apache.directory.shared.ldap.constants.LdapSecurityConstants; 28 29 30 /** 31 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 32 * @version $Rev: 602574 $, $Date: 2007-12-09 00:10:21 +0100 (So, 09 Dez 2007) $ 33 */ 34 class RsaMd5Checksum implements ChecksumEngine 35 { 36 public ChecksumType checksumType() 37 { 38 return ChecksumType.RSA_MD5; 39 } 40 41 42 public byte[] calculateChecksum( byte[] data, byte[] key, KeyUsage usage ) 43 { 44 try 45 { 46 MessageDigest digester = MessageDigest.getInstance( LdapSecurityConstants.HASH_METHOD_MD5.getName() ); 47 return digester.digest( data ); 48 } 49 catch ( NoSuchAlgorithmException nsae ) 50 { 51 return null; 52 } 53 } 54 }