Esempio n. 1
0
  public static final void main(String[] args) throws Exception {

    // Generate a PBE key
    SecretKeyFactory skFac = SecretKeyFactory.getInstance("PBE");
    SecretKey skey = skFac.generateSecret(new PBEKeySpec("test123".toCharArray()));

    // Initialize the PBE cipher
    Cipher cipher = Cipher.getInstance(ALGO);
    cipher.init(Cipher.ENCRYPT_MODE, skey);

    // Permit access to the Cipher.spi field (a CipherSpi object)
    Field spi = Cipher.class.getDeclaredField("spi");
    spi.setAccessible(true);
    Object value = spi.get(cipher);

    // Permit access to the CipherSpi.engineGetKeySize method
    Method engineGetKeySize =
        PKCS12PBECipherCore$PBEWithSHA1AndDESede.class.getDeclaredMethod(
            "engineGetKeySize", Key.class);
    engineGetKeySize.setAccessible(true);

    // Check the key size
    int keySize = (int) engineGetKeySize.invoke(value, skey);
    if (keySize == KEYSIZE) {
      System.out.println(ALGO + ".engineGetKeySize returns " + keySize + " bits, as expected");
      System.out.println("OK");
    } else {
      throw new Exception("ERROR: " + ALGO + " key size is incorrect");
    }
  }
Esempio n. 2
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  /**
   * Copy from the copy method in StructUtil. Did not want to drag that code in. maybe this actually
   * should go to struct.
   *
   * @param from
   * @param to
   * @param excludes
   * @return
   * @throws Exception
   */
  public static <T extends struct> T xcopy(struct from, T to, String... excludes) throws Exception {
    Arrays.sort(excludes);
    for (Field f : from.fields()) {
      if (Arrays.binarySearch(excludes, f.getName()) >= 0) continue;

      Object o = f.get(from);
      if (o == null) continue;

      Field tof = to.getField(f.getName());
      if (tof != null)
        try {
          tof.set(to, Converter.cnv(tof.getGenericType(), o));
        } catch (Exception e) {
          System.out.println(
              "Failed to convert "
                  + f.getName()
                  + " from "
                  + from.getClass()
                  + " to "
                  + to.getClass()
                  + " value "
                  + o
                  + " exception "
                  + e);
        }
    }

    return to;
  }
  /**
   * Parses a field type definition
   *
   * @param docField
   * @return
   */
  protected static Field ParseField(FieldDoc docField) {
    assert (docField != null);

    Field xmlField = new Field();

    xmlField.name = docField.name();
    xmlField.comment = docField.commentText();
    xmlField.type = ParseType(docField.type());
    xmlField.isFinal = docField.isFinal();
    if (xmlField.isFinal) {
      xmlField.finalExpression = docField.constantValueExpression();
    } else if (docField.constantValueExpression() != null) {
      // how would a non-final field have a constant value expression?
      // my understanding is that this field is only != null when is not final
      assert (false);
    }
    xmlField.isStatic = docField.isStatic();
    xmlField.isVolatile = docField.isVolatile();
    xmlField.isTransient = docField.isTransient();
    xmlField.scope = DetermineScope(docField);

    // parse annotations from the field
    xmlField.annotationInstances =
        ParseAnnotationInstances(docField.annotations(), docField.qualifiedName());

    return xmlField;
  }
Esempio n. 4
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 public static Object getAdapterSelf(Class<?> adapterClass, Object adapter)
     throws NoSuchFieldException, IllegalAccessException {
   Field self = adapterClass.getDeclaredField("self");
   return self.get(adapter);
 }