def testXorByteArray(self):
test_arr = bytearray("Hello World!!")
for key in [1, 5, 123, 255]:
xor_arr = bytearray(test_arr)
utils.XorByteArray(xor_arr, key)
self.assertNotEqual(xor_arr, test_arr)
utils.XorByteArray(xor_arr, key)
self.assertEqual(xor_arr, test_arr)
def FindLiteral(self, pattern, data):
"""Search the data for a hit."""
utils.XorByteArray(pattern, self.xor_in_key)
offset = 0
while 1:
# We assume here that data.find does not make a copy of pattern.
offset = data.find(pattern, offset)
if offset < 0:
break
yield (offset, offset + len(pattern))
offset += 1
utils.XorByteArray(pattern, self.xor_in_key)
