Java KeyInfo.add Exemples

Exemple #1

Fichier : XMLEncrypt.java Projet : chille07/Liquid-Democracy-demo

  public static Document encryptAES(
      Key symmetricKey,
      Key keyEncryptionKey,
      Document document,
      Element elementToEncrypt,
      boolean encryptContentsOnly)
      throws Exception {
    org.apache.xml.security.Init.init(); // TODO: make singleton and do this only one time.

    // initialize cipher
    // XMLCipher keyCipher = XMLCipher.getInstance(XMLCipher.RSA_v1dot5);
    XMLCipher keyCipher = XMLCipher.getInstance(XMLCipher.RSA_OAEP);
    keyCipher.init(XMLCipher.WRAP_MODE, keyEncryptionKey);

    // encrypt symmetric key
    System.out.println("sym key: " + symmetricKey);
    EncryptedKey encryptedKey = keyCipher.encryptKey(document, symmetricKey);

    // xml
    XMLCipher xmlCipher = XMLCipher.getInstance(XMLCipher.AES_128);
    xmlCipher.init(XMLCipher.ENCRYPT_MODE, symmetricKey);

    // add key info to encrypted data element
    EncryptedData encryptedDataElement = xmlCipher.getEncryptedData();
    KeyInfo keyInfo = new KeyInfo(document);
    keyInfo.add(encryptedKey);
    encryptedDataElement.setKeyInfo(keyInfo);

    // do the actual encryption
    document = xmlCipher.doFinal(document, elementToEncrypt, encryptContentsOnly);

    return document;
  }