def test_multi(self):
a = Spinner.xor( bytearray([int('0b10101010', 2), int('0b10010110', 2)]),
bytearray([int('0b00000000', 2), int('0b11111111', 2)]))
self.assertEqual(a, bytearray([int('0b10101010', 2), int('0b01101001', 2)]))
a = Spinner.xor( bytearray([int('0b10101010', 2), int('0b10010110', 2)]),
bytearray([int('0b11111111', 2), int('0b00000000', 2)]))
self.assertEqual(a, bytearray([int('0b01010101', 2), int('0b10010110', 2)]))
def test_simple(self):
a = Spinner.xor(bytearray([int('0b00000000', 2)]),
bytearray([int('0b00000000', 2)]))
self.assertEqual(a[0], int('0b00000000', 2))
a = Spinner.xor(bytearray([int('0b00000000', 2)]),
bytearray([int('0b00000001', 2)]))
self.assertEqual(a[0], int('0b00000001', 2))
a = Spinner.xor(bytearray([int('0b00000001', 2)]),
bytearray([int('0b00000000', 2)]))
self.assertEqual(a[0], int('0b00000001', 2))
a = Spinner.xor(bytearray([int('0b00000001', 2)]),
bytearray([int('0b00000001', 2)]))
self.assertEqual(a[0], int('0b00000000', 2))
def test_encdec_new(self):
# default: 256 bytes, 10 iterations
a = Spinner.generate()
pt = bytearray(b'Test string')
ct = a.encrypt(pt)
self.assertNotEqual(pt, ct)
self.assertEqual(len(pt), len(ct))
pt0 = a.decrypt(ct)
self.assertEqual(pt, pt0)
def _do_test(key_name, num_bytes, num_iterations):
p = os.path.join(DATA_PATH, key_name)
f = open(p, 'r')
json_str = f.read()
f.close()
m0 = json.dumps(json.loads(json_str), separators=(',', ':'))
a = Spinner.loads(json_str)
self.assertEqual(a.num_bytes, num_bytes)
self.assertEqual(a.num_iterations, num_iterations)
m1 = json.dumps(json.loads(a.dumps()), separators=(',', ':'))
self.assertEqual(m0, m1)
def test_encdec_pre(self):
# pre-defined key: 256 bytes, 10 iterations
p = os.path.join(DATA_PATH, 'key_recommended.json')
f = open(p, 'r')
json_str = f.read()
f.close()
a = Spinner.loads(json_str)
pt = bytearray(b'abcdABCD')
ct = a.encrypt(pt)
self.assertEqual(ct, bytearray([9, 57, 116, 178, 64, 63, 43, 131]))
self.assertNotEqual(pt, ct)
self.assertEqual(len(pt), len(ct))
pt0 = a.decrypt(ct)
self.assertEqual(pt, pt0)
def test_lengths(self):
# 10 bytes, 4 iterations
a = Spinner.generate(10, 4)
# ecnryption tests
a.encrypt(bytearray(b'0123456789')) # should pass OK
self.assertRaises(SpinnerException, a.encrypt, bytearray(b'0123456789A')) # too long
self.assertRaises(SpinnerException, a.encrypt, bytearray(b'')) # zero length
self.assertRaises(SpinnerException, a.encrypt, '0123') # invalid type
self.assertRaises(SpinnerException, a.encrypt, 1) # invalid type
# decryption tests
a.decrypt(bytearray(b'0123456789')) # should pass OK
self.assertRaises(SpinnerException, a.decrypt, bytearray(b'0123456789A')) # too long
self.assertRaises(SpinnerException, a.decrypt, bytearray(b'')) # zero length
self.assertRaises(SpinnerException, a.decrypt, '0123') # invalid type
self.assertRaises(SpinnerException, a.decrypt, 1) # invalid type
def test_proximity(self):
# pre-defined key: 256 bytes, 10 iterations
p = os.path.join(DATA_PATH, 'key_recommended.json')
f = open(p, 'r')
json_str = f.read()
f.close()
a = Spinner.loads(json_str)
pt1 = bytearray(b'Test1')
pt2 = bytearray(b'Test2')
ct1 = a.encrypt(pt1)
ct2 = a.encrypt(pt2)
# check there are no common bytes
s1 = bytearray_to_set(ct1)
s2 = bytearray_to_set(ct2)
num_common = len(s1.intersection(s2))
self.assertEqual(num_common, 0)
def test_short(self):
# 8 bytes, 3 iterations
a = Spinner.generate(8, 3)
self.assertEqual(a.num_bytes, 8)
self.assertEqual(a.num_iterations, 3)
def test_default(self):
# default: 256 bytes, 10 iterations
a = Spinner.generate()
self.assertEqual(a.num_bytes, 256)
self.assertEqual(a.num_iterations, 10)
