integrityhmac.java

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   /**
    * Proxy method for {@link java.security.Signature#update(byte)}
    * which is executed on the internal {@link java.security.Signature} object.
    *
    * @param input
    * @throws XMLSignatureException
    */
   protected void engineUpdate(byte input) throws XMLSignatureException {

      try {
         this._macAlgorithm.update(input);
      } catch (IllegalStateException ex) {
         throw new XMLSignatureException("empty", ex);
      }
   }

   /**
    * Proxy method for {@link java.security.Signature#update(byte[], int, int)}
    * which is executed on the internal {@link java.security.Signature} object.
    *
    * @param buf
    * @param offset
    * @param len
    * @throws XMLSignatureException
    */
   protected void engineUpdate(byte buf[], int offset, int len)
           throws XMLSignatureException {

      try {
         this._macAlgorithm.update(buf, offset, len);
      } catch (IllegalStateException ex) {
         throw new XMLSignatureException("empty", ex);
      }
   }

   /**
    * Method engineGetJCEAlgorithmString
    * @inheritDoc
    *
    */
   protected String engineGetJCEAlgorithmString() {

      if (log.isLoggable(java.util.logging.Level.FINE))                                     log.log(java.util.logging.Level.FINE, "engineGetJCEAlgorithmString()");

      return this._macAlgorithm.getAlgorithm();
   }

   /**
    * Method engineGetJCEAlgorithmString
    *
    * @inheritDoc
    */
   protected String engineGetJCEProviderName() {
      return this._macAlgorithm.getProvider().getName();
   }

   /**
    * Method engineSetHMACOutputLength
    *
    * @param HMACOutputLength
    */
   protected void engineSetHMACOutputLength(int HMACOutputLength) {
      this._HMACOutputLength = HMACOutputLength;
   }

   /**
    * Method engineGetContextFromElement
    *
    * @param element
    */
   protected void engineGetContextFromElement(Element element) {

      super.engineGetContextFromElement(element);

      if (element == null) {
         throw new IllegalArgumentException("element null");
      }

             Text hmaclength =XMLUtils.selectDsNodeText(element.getFirstChild(),
                    Constants._TAG_HMACOUTPUTLENGTH,0);               

            if (hmaclength != null) {
               this._HMACOutputLength = Integer.parseInt(hmaclength.getData());
            }
      
   }

   /**
    * Method engineAddContextToElement
    *
    * @param element
    */
   public void engineAddContextToElement(Element element)
           {

      if (element == null) {
         throw new IllegalArgumentException("null element");
      }

      if (this._HMACOutputLength != 0) {
         Document doc = element.getOwnerDocument();
         Element HMElem = XMLUtils.createElementInSignatureSpace(doc,
                             Constants._TAG_HMACOUTPUTLENGTH);
         Text HMText =
            doc.createTextNode(new Integer(this._HMACOutputLength).toString());

         HMElem.appendChild(HMText);
         XMLUtils.addReturnToElement(element);
         element.appendChild(HMElem);
         XMLUtils.addReturnToElement(element);
      }
   }

   /**
    * Class IntegrityHmacSHA1
    *
    * @author $Author: raul $
    * @version $Revision: 1.13 $
    */
   public static class IntegrityHmacSHA1 extends IntegrityHmac {

      /**
       * Constructor IntegrityHmacSHA1
       *
       * @throws XMLSignatureException
       */
      public IntegrityHmacSHA1() throws XMLSignatureException {
         super();
      }

      /**
       * Method engineGetURI
       * @inheritDoc
       *
       */
      public String engineGetURI() {
         return XMLSignature.ALGO_ID_MAC_HMAC_SHA1;
      }
   }

   /**
    * Class IntegrityHmacSHA256
    *
    * @author $Author: raul $
    * @version $Revision: 1.13 $
    */
   public static class IntegrityHmacSHA256 extends IntegrityHmac {

      /**
       * Constructor IntegrityHmacSHA256
       *
       * @throws XMLSignatureException
       */
      public IntegrityHmacSHA256() throws XMLSignatureException {
         super();
      }

      /**
       * Method engineGetURI
       *
       * @inheritDoc
       */
      public String engineGetURI() {
         return XMLSignature.ALGO_ID_MAC_HMAC_SHA256;
      }
   }

   /**
    * Class IntegrityHmacSHA384
    *
    * @author $Author: raul $
    * @version $Revision: 1.13 $
    */
   public static class IntegrityHmacSHA384 extends IntegrityHmac {

      /**
       * Constructor IntegrityHmacSHA384
       *
       * @throws XMLSignatureException
       */
      public IntegrityHmacSHA384() throws XMLSignatureException {
         super();
      }

      /**
       * Method engineGetURI
       * @inheritDoc
       *
       */
      public String engineGetURI() {
         return XMLSignature.ALGO_ID_MAC_HMAC_SHA384;
      }
   }

   /**
    * Class IntegrityHmacSHA512
    *
    * @author $Author: raul $
    * @version $Revision: 1.13 $
    */
   public static class IntegrityHmacSHA512 extends IntegrityHmac {

      /**
       * Constructor IntegrityHmacSHA512
       *
       * @throws XMLSignatureException
       */
      public IntegrityHmacSHA512() throws XMLSignatureException {
         super();
      }

      /**
       * Method engineGetURI
       * @inheritDoc
       *
       */
      public String engineGetURI() {
         return XMLSignature.ALGO_ID_MAC_HMAC_SHA512;
      }
   }

   /**
    * Class IntegrityHmacRIPEMD160
    *
    * @author $Author: raul $
    * @version $Revision: 1.13 $
    */
   public static class IntegrityHmacRIPEMD160 extends IntegrityHmac {

      /**
       * Constructor IntegrityHmacRIPEMD160
       *
       * @throws XMLSignatureException
       */
      public IntegrityHmacRIPEMD160() throws XMLSignatureException {
         super();
      }

      /**
       * Method engineGetURI
       *
       * @inheritDoc
       */
      public String engineGetURI() {
         return XMLSignature.ALGO_ID_MAC_HMAC_RIPEMD160;
      }
   }

   /**
    * Class IntegrityHmacMD5
    *
    * @author $Author: raul $
    * @version $Revision: 1.13 $
    */
   public static class IntegrityHmacMD5 extends IntegrityHmac {

      /**
       * Constructor IntegrityHmacMD5
       *
       * @throws XMLSignatureException
       */
      public IntegrityHmacMD5() throws XMLSignatureException {
         super();
      }

      /**
       * Method engineGetURI
       *
       * @inheritDoc
       */
      public String engineGetURI() {
         return XMLSignature.ALGO_ID_MAC_HMAC_NOT_RECOMMENDED_MD5;
      }
   }
}