

from __future__ import annotations

import random
import string





class 			__lowerCAmelCase					:




  def __init__(    self,       lowerCAmelCase = None )  ->			None:
        '''simple docstring'''






        _lowercase     	=passcode or self.__passcode_creator()
        _lowercase     	=self.__make_key_list()
        _lowercase     	=self.__make_shift_key()




  def __str__(    self )  ->			str:
        '''simple docstring'''






        return "".join(self.__passcode )




  def   A__					(    self,       lowerCAmelCase )  ->			list[int]:
        '''simple docstring'''






        for i in range(1,       len(lowerCAmelCase ),       2 ):
              iterlist[i] *= -1
        return iterlist




  def   A__					(    self )  ->			list[str]:
        '''simple docstring'''






        _lowercase     	=string.ascii_letters + string.digits
        _lowercase     	=[random.choice(lowerCAmelCase ) for _ in range(random.randint(10,       20 ) )]
        return password




  def   A__					(    self )  ->			list[str]:
        '''simple docstring'''






        _lowercase     	=(
            string.ascii_letters + string.digits + string.punctuation + ' \t\n'
        )

        _lowercase     	=[]

        # creates points known as breakpoints to break the key_list_options at those
        # points and pivot each substring
        _lowercase     	=sorted(set(self.__passcode ) )
        _lowercase     	=[]

        # algorithm for creating a new shuffled list, keys_l, out of key_list_options
        for i in key_list_options:
              temp_list.extend(lowerCAmelCase )

              # checking breakpoints at which to pivot temporary sublist and add it into
              # keys_l
              if i in breakpoints or i == key_list_options[-1]:
                    keys_l.extend(temp_list[::-1] )
                    temp_list.clear()

        # returning a shuffled keys_l to prevent brute force guessing of shift key
        return keys_l




  def   A__					(    self )  ->			int:
        '''simple docstring'''






        _lowercase     	=sum(self.__neg_pos([ord(lowerCAmelCase ) for x in self.__passcode] ) )
        return num if num > 0 else len(self.__passcode )




  def   A__					(    self,       lowerCAmelCase )  ->			str:
        '''simple docstring'''






        _lowercase     	=''

        # decoding shift like Caesar cipher algorithm implementing negative shift or
        # reverse shift or left shift
        for i in encoded_message:
              _lowercase     	=self.__key_list.index(lowerCAmelCase )
              decoded_message += self.__key_list[
                  (position - self.__shift_key) % -len(self.__key_list )
              ]

        return decoded_message




  def   A__					(    self,       lowerCAmelCase )  ->			str:
        '''simple docstring'''






        _lowercase     	=''

        # encoding shift like Caesar cipher algorithm implementing positive shift or
        # forward shift or right shift
        for i in plaintext:
              _lowercase     	=self.__key_list.index(lowerCAmelCase )
              encoded_message += self.__key_list[
                  (position + self.__shift_key) % len(self.__key_list )
              ]

        return encoded_message
def 					a				(      A__     :       str = "Hello, this is a modified Caesar cipher"					)   ->				str:





      """simple docstring"""



      _lowercase     	=ShuffledShiftCipher()
      return cipa.decrypt(cipa.encrypt(A__					)					)


if __name__ == "__main__":
  import doctest

  doctest.testmod()





import os
import sys

from . import rsa_key_generator as rkg

lowercase_     =       1_2_8
lowercase_     =       2_5_6
def 					a				(      A__     :       str				,       A__     :       int = DEFAULT_BLOCK_SIZE					)   ->				list[int]:





      """simple docstring"""



      _lowercase     	=message.encode('ascii'					)

      _lowercase     	=[]
      for block_start in range(0				,       len(A__					)				,       A__					):
            _lowercase     	=0
            for i in range(A__				,       min(block_start + block_size				,       len(A__					)					)					):
                  block_int += message_bytes[i] * (BYTE_SIZE ** (i % block_size))
            block_ints.append(A__					)
      return block_ints
def 					a				(      A__     :       list[int]				,       A__     :       int				,       A__     :       int = DEFAULT_BLOCK_SIZE					)   ->				str:





      """simple docstring"""



      _lowercase     	=[]
      for block_int in block_ints:
            _lowercase     	=[]
            for i in range(block_size - 1				,       -1				,       -1					):
                  if len(A__					) + i < message_length:
                        _lowercase     	=block_int // (BYTE_SIZE**i)
                        _lowercase     	=block_int % (BYTE_SIZE**i)
                        block_message.insert(0				,       chr(A__					)					)
            message.extend(A__					)
      return "".join(A__					)
def 					a				(      A__     :       str				,       A__     :       tuple[int, int]				,       A__     :       int = DEFAULT_BLOCK_SIZE					)   ->				list[int]:





      """simple docstring"""



      _lowercase     	=[]
      _lowercase	,	_lowercase     	=key

      for block in get_blocks_from_text(A__				,       A__					):
            encrypted_blocks.append(pow(A__				,       A__				,       A__					)					)
      return encrypted_blocks
def 					a				(      A__     :       list[int]				,       A__     :       int				,       A__     :       tuple[int, int]				,       A__     :       int = DEFAULT_BLOCK_SIZE				,       )   ->				str:





      """simple docstring"""



      _lowercase     	=[]
      _lowercase	,	_lowercase     	=key
      for block in encrypted_blocks:
            decrypted_blocks.append(pow(A__				,       A__				,       A__					)					)
      return get_text_from_blocks(A__				,       A__				,       A__					)
def 					a				(      A__     :       str					)   ->				tuple[int, int, int]:





      """simple docstring"""



      with open(A__					) as fo:
            _lowercase     	=fo.read()
      _lowercase	,	_lowercase	,	_lowercase     	=content.split(','					)
      return (int(A__					), int(A__					), int(A__					))
def 					a				(      A__     :       str				,       A__     :       str				,       A__     :       str				,       A__     :       int = DEFAULT_BLOCK_SIZE				,       )   ->				str:





      """simple docstring"""



      _lowercase	,	_lowercase	,	_lowercase     	=read_key_file(A__					)
      if key_size < block_size * 8:
            sys.exit(
                'ERROR: Block size is {} bits and key size is {} bits. The RSA cipher '
                'requires the block size to be equal to or greater than the key size. '
                'Either decrease the block size or use different keys.'.format(
                    block_size * 8				,       A__					)					)

      _lowercase     	=[str(A__					) for i in encrypt_message(A__				,       (n, e)				,       A__					)]

      _lowercase     	=','.join(A__					)
      _lowercase     	=F'''{len(A__					)}_{block_size}_{encrypted_content}'''
      with open(A__				,       'w'					) as fo:
            fo.write(A__					)
      return encrypted_content
def 					a				(      A__     :       str				,       A__     :       str					)   ->				str:





      """simple docstring"""



      _lowercase	,	_lowercase	,	_lowercase     	=read_key_file(A__					)
      with open(A__					) as fo:
            _lowercase     	=fo.read()
      _lowercase	,	_lowercase	,	_lowercase     	=content.split('_'					)
      _lowercase     	=int(A__					)
      _lowercase     	=int(A__					)

      if key_size < block_size * 8:
            sys.exit(
                'ERROR: Block size is {} bits and key size is {} bits. The RSA cipher '
                'requires the block size to be equal to or greater than the key size. '
                'Did you specify the correct key file and encrypted file?'.format(
                    block_size * 8				,       A__					)					)

      _lowercase     	=[]
      for block in encrypted_message.split(','					):
            encrypted_blocks.append(int(A__					)					)

      return decrypt_message(A__				,       A__				,       (n, d)				,       A__					)
def 					a				(      )   ->				None:





      """simple docstring"""



      _lowercase     	='encrypted_file.txt'
      _lowercase     	=input(r'Encrypt\Decrypt [e\d]: '					)

      if response.lower().startswith('e'					):
            _lowercase     	='encrypt'
      elif response.lower().startswith('d'					):
            _lowercase     	='decrypt'

      if mode == "encrypt":
            if not os.path.exists('rsa_pubkey.txt'					):
                  rkg.make_key_files('rsa'				,       1024					)

            _lowercase     	=input('\nEnter message: '					)
            _lowercase     	='rsa_pubkey.txt'
            print(F'''Encrypting and writing to {filename}...'''					)
            _lowercase     	=encrypt_and_write_to_file(A__				,       A__				,       A__					)

            print('\nEncrypted text:'					)
            print(A__					)

      elif mode == "decrypt":
            _lowercase     	='rsa_privkey.txt'
            print(F'''Reading from {filename} and decrypting...'''					)
            _lowercase     	=read_from_file_and_decrypt(A__				,       A__					)
            print('writing decryption to rsa_decryption.txt...'					)
            with open('rsa_decryption.txt'				,       'w'					) as dec:
                  dec.write(A__					)

            print('\nDecryption:'					)
            print(A__					)


if __name__ == "__main__":
  main()


