def test_randomnessOfMsgAndIV(self):
ctxs = []
for i in xrange(100):
key = base64.urlsafe_b64encode(os.urandom(16))
feistel = MyFeistel(key, 10)
for j in xrange(10):
msg = os.urandom(40)
ctx = feistel._feistel_round_enc(msg, j)
assert ctx not in ctxs
ctxs.append(ctx)
def test_feistelRoundEncDec(self):
key = base64.urlsafe_b64encode(os.urandom(16))
for i in xrange(10):
feistel = MyFeistel(key, 10)
msg = os.urandom(40)
assert feistel._feistel_round_dec(feistel._feistel_round_enc(msg, i), i) == msg
