code: /**
   * 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.cxf.ws.security.policy.custom;
  
  import org.apache.cxf.ws.security.policy.SP12Constants;
  import org.apache.cxf.ws.security.policy.SPConstants;
  import org.apache.cxf.ws.security.policy.WSSPolicyException;
  import org.apache.cxf.ws.security.policy.model.AlgorithmSuite;
  
  /**
   * This AlgorithmSuite supports GCM security policies.
   */
  public class GCMAlgorithmSuite extends AlgorithmSuite {
      
      public GCMAlgorithmSuite(SPConstants version) {
          super(version);
      }
  
      public GCMAlgorithmSuite() {
          super(SP12Constants.INSTANCE);
      }
      
      /**
       * Set the algorithm suite
       * 
       * @param algoSuite
       * @throws WSSPolicyException
       */
      @Override
      public void setAlgorithmSuite(String algoSuite) throws WSSPolicyException {
          this.algoSuiteString = algoSuite;
          
          if ("Basic128GCM".equals(algoSuite)) {
              this.digest = SPConstants.SHA1;
              this.encryption = "http://www.w3.org/2009/xmlenc11#aes128-gcm";
              this.symmetricKeyWrap = SPConstants.KW_AES128;
              this.asymmetricKeyWrap = SPConstants.KW_RSA_OAEP;
              this.encryptionKeyDerivation = SPConstants.P_SHA1_L128;
              this.signatureKeyDerivation = SPConstants.P_SHA1_L128;
              this.encryptionDerivedKeyLength = 128;
              this.signatureDerivedKeyLength = 128;
              this.minimumSymmetricKeyLength = 128;
          } else if ("Basic192GCM".equals(algoSuite)) {
              this.digest = SPConstants.SHA1;
              this.encryption = "http://www.w3.org/2009/xmlenc11#aes192-gcm";
              this.symmetricKeyWrap = SPConstants.KW_AES192;
              this.asymmetricKeyWrap = SPConstants.KW_RSA_OAEP;
              this.encryptionKeyDerivation = SPConstants.P_SHA1_L192;
              this.signatureKeyDerivation = SPConstants.P_SHA1_L192;
              this.encryptionDerivedKeyLength = 192;
              this.signatureDerivedKeyLength = 192;
              this.minimumSymmetricKeyLength = 192;
          } else if ("Basic256GCM".equals(algoSuite)) {
              this.digest = SPConstants.SHA1;
              this.encryption = "http://www.w3.org/2009/xmlenc11#aes256-gcm";
              this.symmetricKeyWrap = SPConstants.KW_AES256;
              this.asymmetricKeyWrap = SPConstants.KW_RSA_OAEP;
              this.encryptionKeyDerivation = SPConstants.P_SHA1_L256;
              this.signatureKeyDerivation = SPConstants.P_SHA1_L192;
              this.encryptionDerivedKeyLength = 256;
              this.signatureDerivedKeyLength = 192;
              this.minimumSymmetricKeyLength = 256;
              this.encryptionDerivedKeyLength = 256;
          } 
      }
  }
  