Examples of org.apache.xml.security.encryption.XMLCipher.decryptKey()

Package org.apache.xml.security.encryption

Class org.apache.xml.security.encryption.XMLCipher

Examples of org.apache.xml.security.encryption.XMLCipher.decryptKey()

org.apache.xml.security.encryption.XMLCipher.decryptKey()
Decrypt a key from a passed in EncryptedKey structure @param encryptedKey Previously loaded EncryptedKey that needsto be decrypted. @param algorithm Algorithm for the decryption @return a key corresponding to the given type @throws XMLEncryptionException

        XMLCipher kwCipher = XMLCipher.getInstance();
        kwCipher.init(XMLCipher.UNWRAP_MODE, keyWrappingKey);
        KeyInfo ki = encryptedData.getKeyInfo();
        EncryptedKey encryptedKey = ki.itemEncryptedKey(0);
        Key symmetricKey = 
            kwCipher.decryptKey(
                encryptedKey, encryptedData.getEncryptionMethod().getAlgorithm()
            );


        cipher.init(XMLCipher.DECRYPT_MODE, symmetricKey);
        return cipher.doFinal(document, ee);

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            throw new DecryptionException("Error when loading library native encrypted key representation", e);
        }


        Key key = null;
        try {
            key = xmlCipher.decryptKey(encKey, algorithm);
        } catch (XMLEncryptionException e) {
            log.error("Error decrypting encrypted key", e);
            throw new DecryptionException("Error decrypting encrypted key", e);
        }
        if (key == null) {

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      if (encryptedData != null && encryptedKey != null) 
      {
         String encAlgoURL = encryptedData.getEncryptionMethod().getAlgorithm();
         XMLCipher keyCipher =  XMLCipher.getInstance(); 
         keyCipher.init(XMLCipher.UNWRAP_MODE, privateKey); 
         Key encryptionKey =  keyCipher.decryptKey( encryptedKey, encAlgoURL ); 
         cipher =  XMLCipher.getInstance();  
         cipher.init(XMLCipher.DECRYPT_MODE, encryptionKey); 
         decryptedDoc = cipher.doFinal(encryptedDoc, (Element)dataEL); 
      }
      return decryptedDoc;

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      EncryptedKey ek = encryptedData.getKeyInfo().itemEncryptedKey(0);


      if (ek != null) {
        XMLCipher keyCipher = XMLCipher.getInstance();
        keyCipher.init(XMLCipher.UNWRAP_MODE, kek);
        key = keyCipher.decryptKey(ek, encryptedData.getEncryptionMethod().getAlgorithm());
      }


      // Create a new cipher just to be paranoid
      XMLCipher cipher3 = XMLCipher.getInstance();
      cipher3.init(XMLCipher.DECRYPT_MODE, key);

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      log.debug("Passed an Encrypted Key");
      try {
        XMLCipher cipher = XMLCipher.getInstance();
        cipher.init(XMLCipher.UNWRAP_MODE, _kek);
        EncryptedKey ek = cipher.loadEncryptedKey(element);
        _key = cipher.decryptKey(ek, _algorithm);
      }
      catch (Exception e) {}
      }
    
      return (_key != null);

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        EncryptedKey encryptedKey = ki.itemEncryptedKey(0);


        XMLCipher cipher2 = XMLCipher.getInstance();
        cipher2.init(XMLCipher.UNWRAP_MODE, rsaKey);
        Key key =
                cipher2.decryptKey(
                        encryptedKey, encryptedData.getEncryptionMethod().getAlgorithm()
                );


        cipher.init(XMLCipher.DECRYPT_MODE, key);
        Document dd = cipher.doFinal(doc, ee);

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        log.debug("Passed an Encrypted Key");
        try {
          XMLCipher cipher = XMLCipher.getInstance();
          cipher.init(XMLCipher.UNWRAP_MODE, _kek);
          EncryptedKey ek = cipher.loadEncryptedKey(element);
          key = (SecretKey) cipher.decryptKey(ek, _algorithm);
        }
        catch (Exception e) {}
        }
              
      return key;

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      }
    }
    if (kek != null) {
      XMLCipher cipher = XMLCipher.getInstance();
      cipher.init(XMLCipher.UNWRAP_MODE, kek);
      key = cipher.decryptKey(encryptedKey,
                  encryptedData.
                  getEncryptionMethod().
                  getAlgorithm());
    }

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      EncryptedKey ek = encryptedData.getKeyInfo().itemEncryptedKey(0);


      if (ek != null) {
        XMLCipher keyCipher = XMLCipher.getInstance();
        keyCipher.init(XMLCipher.UNWRAP_MODE, kek);
        key = keyCipher.decryptKey(ek, encryptedData.getEncryptionMethod().getAlgorithm());
      }


      // Create a new cipher just to be paranoid
      XMLCipher cipher3 = XMLCipher.getInstance();
      cipher3.init(XMLCipher.DECRYPT_MODE, key);

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      }
    }
    if (kek != null) {
      XMLCipher cipher = XMLCipher.getInstance();
      cipher.init(XMLCipher.UNWRAP_MODE, kek);
      key = cipher.decryptKey(encryptedKey,
                  encryptedData.
                  getEncryptionMethod().
                  getAlgorithm());
    }

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