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.wss4j.common.derivedKey;
21
22 import org.apache.wss4j.common.ext.WSSecurityException;
23
24 public final class AlgoFactory {
25
26 private AlgoFactory() {
27 // Complete
28 }
29
30 /**
31 * This gives a DerivationAlgorithm instance from the default set of algorithms provided
32 *
33 * @param algorithm The algorithm identifier
34 * @return A derivation algorithm
35 * @throws WSSecurityException If the specified algorithm is not available
36 * in default implementations
37 */
38 public static DerivationAlgorithm getInstance(String algorithm) throws WSSecurityException {
39 if (ConversationConstants.DerivationAlgorithm.P_SHA_1_2005_12.equals(algorithm)
40 || ConversationConstants.DerivationAlgorithm.P_SHA_1.equals(algorithm)) {
41 return new P_SHA1();
42 } else {
43 throw new WSSecurityException(WSSecurityException.ErrorCode.FAILURE,
44 "unknownAlgorithm", new Object[] {algorithm});
45 }
46 }
47
48 }