#!/usr/bin/env python3
# -*- coding:utf-8 -*-
"""
Create a password that can be found/calculated
without a computer, using binary to ascii conversion.

Example:

Consider the following binary code:
00101011 01011100
01000110 01111000
00110000 01000000
01011010 00101110

Hexa result: 2B 5C 46 78 30 40 5A 2E

Ascii result (wifi password): +\Fx0@Z.
"""

import random
import string
import binascii
import textwrap

def randomword(length):
   letters = string.ascii_letters + string.digits + string.punctuation
   return ''.join(random.choice(letters) for i in range(length))

def text_to_bits(text, encoding='utf-8', errors='surrogatepass'):
    bits = bin(int.from_bytes(text.encode(encoding, errors), 'big'))[2:]
    return bits.zfill(8 * ((len(bits) + 7) // 8))

def main(length):
  password = randomword(length)
  binary = text_to_bits(password)
  hexa = textwrap.wrap(hex(int(binary, 2)), 2)

  print('Binary tree:')

  for i in range(0, length):
    text = textwrap.wrap(binary, 8)
    print('{}'.format(text[i]))

  print('\nPassword: {}'.format(password))
  print('Hexa: {}'.format(' '.join(hexa[2:])))


if __name__ == '__main__':
    length = 10
    main(length)