simpleSubDictionaryHacker.py

"""
created by dromakin as 28.12.2020
Project codebreaker
"""

__author__ = 'dromakin'
__maintainer__ = 'dromakin'
__credits__ = ['dromakin', ]
__status__ = 'Development'
__version__ = '20201228'

from help_modules.modules import *

SILENT_MODE = False


def main():
    # myMessage = r"""Г ЙМЦУГКРЬ ЫДФЫБ ФЦ УГЙЬ ЗЫЮЫЙ ПТЮ — ЛЫМХ ЙОАМТЛ ОТФЫЙЬ. РЫЗДЦ О СЫЮФГИ ЙЬЮГ ЫФЦ ЗЫЮЫЙЬЮЦ, РЦМЦЙМУЫЧЦ ПТЮЦ ФЦ УГЙЬ"""
    myMessage = r"""Абгпсмгрйп нгирп и кбщрнгпгг г лкжсчарп опглрйугю. Кй лкжсчгж вачрп лк ёмглпктмафгг."""

    brokenCiphertext = hackSimpleSubDictionary(myMessage)

    if brokenCiphertext == None:
        # hackSimpleSubDictionary() will return the None value if it was unable to hack the encryption.
        print('Hacking failed. Unable to hack this ciphertext.')
    else:
        # The plaintext is displayed on the screen. For the convenience of the user, we copy the text of the code to the clipboard.
        print('Copying broken ciphertext to clipboard:')
        print(brokenCiphertext)
        pyperclip.copy(brokenCiphertext)


def hackSimpleSubDictionary(message):
    print('Hacking with %s possible dictionary words...' % (len(detectRussian.RUSSIAN_WORDS) * 3))

    # Python programs can be stopped at any time by pressing Ctrl-C (on Windows) or Ctrl-D (on Mac and Linux)
    print('(Press Ctrl-C or Ctrl-D to quit at any time.)')

    tryNum = 1

    # brute-force by looping through every possible key
    for key in detectRussian.RUSSIAN_WORDS:
        try:
            if tryNum % 100 == 0 and not SILENT_MODE:
                print('%s keys tried. (%s)' % (tryNum, key))

            decryptedText = simpleSubKeyword.decryptMessage(key, message)

            if detectRussian.getRussianCount(decryptedText) > 0.20:
                # Check with the user to see if the decrypted key has been found.
                print()
                print('Possible encryption hack:')
                print('Key: ' + str(key))
                print('Decrypted message: ' + decryptedText[:100])
                print()
                print('Enter D for done, or just press Enter to continue hacking:')
                response = input('> ')

                if response.upper().startswith('D'):
                    return decryptedText

            tryNum += 1
        except:
            continue
    return None


if __name__ == '__main__':
    main()