cryptohack_org_no_leaks.py

import base64
import json
import socket
import math

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(("socket.cryptohack.org", 13370))

data = s.recv(9)
mappina = []
for i in range(0, 20):
    mappina.append(set())

all = set()
for i in range(0, 255):
    all.add(i)

finished = False
max = 20 * 255

while not finished:
    s.sendall(b'{"msg": "request"}')
    data = json.loads(s.recv(50))
    if 'ciphertext' in data:
        c = base64.b64decode(data['ciphertext'])
        for i in range(0, len(c)):
            mappina[i].add(c[i])
    finished = True
    w = ""
    p = 0
    for e in mappina:
        res = all.difference(e)
        p += len(res)
        if len(res) > 1:
            w += "*"
            finished = False
        else:
            w += chr(list(res)[0])
    print(str(math.ceil(p/max*100)) + '% - ' +
          str(p-20) + ' iteration remaining')
    print(w)
    print('')