




'''simple docstring'''





import os
import sys

from . import rsa_key_generator as rkg

a		:	str       =      1_2_8
a		:	int       =      2_5_6





def UpperCAmelCase    (       UpperCAmelCase_   ,	UpperCAmelCase_ = DEFAULT_BLOCK_SIZE						):
    _a				:							List[str]							       =      message.encode("""ascii"""						)

    _a				:							str							       =      []
    for block_start in range(0   ,	len(UpperCAmelCase_						)   ,	UpperCAmelCase_						):
        _a				:							Optional[int]							       =      0
        for i in range(UpperCAmelCase_   ,	min(block_start + block_size   ,	len(UpperCAmelCase_						)						)						):
            block_int += message_bytes[i] * (BYTE_SIZE ** (i % block_size))
        block_ints.append(UpperCAmelCase_						)
    return block_ints





def UpperCAmelCase    (       UpperCAmelCase_   ,	UpperCAmelCase_   ,	UpperCAmelCase_ = DEFAULT_BLOCK_SIZE						):
    _a				:							list[str]							       =      []
    for block_int in block_ints:
        _a				:							list[str]							       =      []
        for i in range(block_size - 1   ,	-1   ,	-1						):
            if len(UpperCAmelCase_						) + i < message_length:
                _a				:							Optional[Any]							       =      block_int // (BYTE_SIZE**i)
                _a				:							Dict							       =      block_int % (BYTE_SIZE**i)
                block_message.insert(0   ,	chr(UpperCAmelCase_						)						)
        message.extend(UpperCAmelCase_						)
    return "".join(UpperCAmelCase_						)





def UpperCAmelCase    (       UpperCAmelCase_   ,	UpperCAmelCase_   ,	UpperCAmelCase_ = DEFAULT_BLOCK_SIZE						):
    _a				:							Optional[int]							       =      []
    _a				:							str							       =      key

    for block in get_blocks_from_text(UpperCAmelCase_   ,	UpperCAmelCase_						):
        encrypted_blocks.append(pow(UpperCAmelCase_   ,	UpperCAmelCase_   ,	UpperCAmelCase_						)						)
    return encrypted_blocks





def UpperCAmelCase    (       UpperCAmelCase_   ,	UpperCAmelCase_   ,	UpperCAmelCase_   ,	UpperCAmelCase_ = DEFAULT_BLOCK_SIZE   ,	):
    _a				:							Optional[int]							       =      []
    _a				:							str							       =      key
    for block in encrypted_blocks:
        decrypted_blocks.append(pow(UpperCAmelCase_   ,	UpperCAmelCase_   ,	UpperCAmelCase_						)						)
    return get_text_from_blocks(UpperCAmelCase_   ,	UpperCAmelCase_   ,	UpperCAmelCase_						)





def UpperCAmelCase    (       UpperCAmelCase_						):





    with open(UpperCAmelCase_						) as fo:
        _a				:							Any							       =      fo.read()
    _a				:							Optional[Any]							       =      content.split(""","""						)
    return (int(UpperCAmelCase_						), int(UpperCAmelCase_						), int(UpperCAmelCase_						))





def UpperCAmelCase    (       UpperCAmelCase_   ,	UpperCAmelCase_   ,	UpperCAmelCase_   ,	UpperCAmelCase_ = DEFAULT_BLOCK_SIZE   ,	):
    _a				:							int							       =      read_key_file(UpperCAmelCase_						)
    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   ,	UpperCAmelCase_						)						)

    _a				:							int							       =      [str(UpperCAmelCase_						) for i in encrypt_message(UpperCAmelCase_   ,	(n, e)   ,	UpperCAmelCase_						)]

    _a				:							List[Any]							       =      ','.join(UpperCAmelCase_						)
    _a				:							Tuple							       =      F'''{len(UpperCAmelCase_						)}_{block_size}_{encrypted_content}'''
    with open(UpperCAmelCase_   ,	"""w"""						) as fo:
        fo.write(UpperCAmelCase_						)
    return encrypted_content





def UpperCAmelCase    (       UpperCAmelCase_   ,	UpperCAmelCase_						):
    _a				:							Tuple							       =      read_key_file(UpperCAmelCase_						)
    with open(UpperCAmelCase_						) as fo:
        _a				:							Optional[Any]							       =      fo.read()
    _a				:							Union[str, Any]							       =      content.split("""_"""						)
    _a				:							List[Any]							       =      int(UpperCAmelCase_						)
    _a				:							Dict							       =      int(UpperCAmelCase_						)

    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   ,	UpperCAmelCase_						)						)

    _a				:							Union[str, Any]							       =      []
    for block in encrypted_message.split(""","""						):
        encrypted_blocks.append(int(UpperCAmelCase_						)						)

    return decrypt_message(UpperCAmelCase_   ,	UpperCAmelCase_   ,	(n, d)   ,	UpperCAmelCase_						)





def UpperCAmelCase    (       ):
    _a				:							Tuple							       =      'encrypted_file.txt'
    _a				:							Optional[Any]							       =      input(r"""Encrypt\Decrypt [e\d]: """						)

    if response.lower().startswith("""e"""						):
        _a				:							Optional[Any]							       =      'encrypt'
    elif response.lower().startswith("""d"""						):
        _a				:							Union[str, Any]							       =      'decrypt'

    if mode == "encrypt":
        if not os.path.exists("""rsa_pubkey.txt"""						):
            rkg.make_key_files("""rsa"""   ,	1_024						)

        _a				:							Union[str, Any]							       =      input("""\nEnter message: """						)
        _a				:							Tuple							       =      'rsa_pubkey.txt'
        print(F'''Encrypting and writing to {filename}...'''						)
        _a				:							Optional[Any]							       =      encrypt_and_write_to_file(UpperCAmelCase_   ,	UpperCAmelCase_   ,	UpperCAmelCase_						)

        print("""\nEncrypted text:"""						)
        print(UpperCAmelCase_						)

    elif mode == "decrypt":
        _a				:							Optional[Any]							       =      'rsa_privkey.txt'
        print(F'''Reading from {filename} and decrypting...'''						)
        _a				:							int							       =      read_from_file_and_decrypt(UpperCAmelCase_   ,	UpperCAmelCase_						)
        print("""writing decryption to rsa_decryption.txt..."""						)
        with open("""rsa_decryption.txt"""   ,	"""w"""						) as dec:
            dec.write(UpperCAmelCase_						)

        print("""\nDecryption:"""						)
        print(UpperCAmelCase_						)


if __name__ == "__main__":
  main()








import random
import sys

UpperCAmelCase__    :							str       		=     'ABCDEFGHIJKLMNOPQRSTUVWXYZ'


def 		_lowerCamelCase					(       )      ->		None:





  """simple docstring"""





  _lowercase:			Any      =     input('Enter message: '				)
  _lowercase:			List[str]      =     'LFWOAYUISVKMNXPBDCRJTQEGHZ'
  _lowercase:			Tuple      =     input('Encrypt/Decrypt [e/d]: '				)

  check_valid_key(UpperCamelCase				)

  if resp.lower().startswith('e'				):
    _lowercase:			int      =     'encrypt'
    _lowercase:			Optional[int]      =     encrypt_message(UpperCamelCase       ,  UpperCamelCase				)
  elif resp.lower().startswith('d'				):
    _lowercase:			str      =     'decrypt'
    _lowercase:			Dict      =     decrypt_message(UpperCamelCase       ,  UpperCamelCase				)

  print(F'\n{mode.title()}ion: \n{translated}'				)


def 		_lowerCamelCase					(       UpperCamelCase				)      ->		None:





  """simple docstring"""





  _lowercase:			List[Any]      =     list(UpperCamelCase				)
  _lowercase:			Union[str, Any]      =     list(UpperCamelCase				)
  key_list.sort()
  letters_list.sort()

  if key_list != letters_list:
    sys.exit('Error in the key or symbol set.'				)


def 		_lowerCamelCase					(       UpperCamelCase       ,  UpperCamelCase				)      ->		str:





  """simple docstring"""





  return translate_message(UpperCamelCase       ,  UpperCamelCase       ,  'encrypt'				)


def 		_lowerCamelCase					(       UpperCamelCase       ,  UpperCamelCase				)      ->		str:





  """simple docstring"""





  return translate_message(UpperCamelCase       ,  UpperCamelCase       ,  'decrypt'				)


def 		_lowerCamelCase					(       UpperCamelCase       ,  UpperCamelCase       ,  UpperCamelCase				)      ->		str:





  """simple docstring"""





  _lowercase:			Optional[int]      =     ''
  _lowercase:			Any      =     LETTERS
  _lowercase:			Tuple      =     key

  if mode == "decrypt":
    _lowercase  ,       _lowercase:			Tuple      =     chars_b, chars_a

  for symbol in message:
    if symbol.upper() in chars_a:
      _lowercase:			int      =     chars_a.find(symbol.upper()				)
      if symbol.isupper():
        translated += chars_b[sym_index].upper()
      else:
        translated += chars_b[sym_index].lower()
    else:
      translated += symbol

  return translated


def 		_lowerCamelCase					(       )      ->		str:





  """simple docstring"""





  _lowercase:			Union[str, Any]      =     list(UpperCamelCase				)
  random.shuffle(UpperCamelCase				)
  return "".join(UpperCamelCase				)


if __name__ == "__main__":
   main()
