cipher1.py

import random
def enc(s):
    n = 0
    for c in s:
        n = (n<<1)+random.randint(0, 1)
        n = (n<<8)+ord(c)
    return -1 * (~(n<<4))


def dec(n):
    n = (~(-1 * n))>>4
    s = ''
    while n > 0:
        s = chr(n&0xff) + s
        n >>= 9
    return s

def test(s):
    n = enc(s)
    print(s, n, dec(n))