| /* |
| * 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.crypto.encryption; |
| |
| |
| import org.apache.directory.api.util.Strings; |
| |
| |
| /** |
| * Helper for determining whether various ciphers are supported by the JRE. For now |
| * determinations are based solely on JRE vendor. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class VendorHelper |
| { |
| private static final String vendor = Strings.toLowerCase( System.getProperty( "java.vendor" ) ); |
| |
| |
| static String getTripleDesAlgorithm() |
| { |
| if ( isIbm() ) |
| { |
| return "3DES"; |
| } |
| else |
| { |
| return "DESede"; |
| } |
| } |
| |
| |
| static boolean isCtsSupported() |
| { |
| return vendor.contains( "sun" ); |
| } |
| |
| |
| static boolean isArcFourHmacSupported() |
| { |
| return vendor.contains( "sun" ); |
| } |
| |
| |
| static boolean isTripleDesSupported() |
| { |
| return vendor.contains( "sun" ); |
| } |
| |
| |
| static boolean isIbm() |
| { |
| return vendor.contains( "ibm" ); |
| } |
| } |