def doFinal(self, inBuff, inOffset, inLength, outBuff, outOffset):
Cipher.doFinal(self, inBuff, inOffset, inLength, outBuff, outOffset)
data = [0 for i in xrange(inLength)]
Util.arrayCopy(inBuff, inOffset, data, 0, inLength)
data = _arrayTobinary(data)
if self.mode == Cipher.MODE_ENCRYPT:
result = self._cipher.encrypt(data)
else:
result = self._cipher.decrypt(data)
result = _binaryToarray(result)
Util.arrayCopy(result, 0, outBuff, outOffset, len(result))
return len(result)
def init(self, theKey, theMode, bArray = [0,0,0,0,0,0,0,0], bOff = 0, bLen = 8):
Cipher.init(self, theKey, theMode, bArray, bOff, bLen)
if not isinstance(theKey, pyDesDESKey):
raise CryptoException(CryptoException.ILLEGAL_VALUE)
if bLen != 8:
raise CryptoException(CryptoException.ILLEGAL_VALUE)
iv = [0 for i in xrange(8)]
Util.arrayCopy(bArray, bOff, iv, 0, bLen)
iv = _arrayTobinary(iv)
if 64 == theKey.getSize():
# DES
self._cipher = pyDes.des(theKey._key, self.desmode, iv,
padmode = self.padmode)
def setKey(self, keyData, keyOff):
self._key = _arrayTobinary(keyData[keyOff:keyOff+8])
self._setInitialized()
