code: 
  
  
  """simple docstring"""
  import os
  import sys
  
  from . import rsa_key_generator as rkg
  
  UpperCAmelCase   =	128
  UpperCAmelCase   =	256
  
  def 							_snake_case			(      __snake_case       :			str	,   __snake_case       :			int = DEFAULT_BLOCK_SIZE      ):
  
  
  
  
     """simple docstring"""
  
  
  
  
  
  
  
     _lowerCamelCase  :				Union[str, Any]      =		message.encode("""ascii"""      )
  
     _lowerCamelCase  :				int      =		[]
     for block_start in range(0	,   len(__snake_case      )	,   __snake_case      ):
        _lowerCamelCase  :				Optional[Any]      =		0
        for i in range(__snake_case	,   min(block_start + block_size	,   len(__snake_case      )      )      ):
           block_int += message_bytes[i] * (BYTE_SIZE ** (i % block_size))
        block_ints.append(__snake_case      )
     return block_ints
  
  def 							_snake_case			(      __snake_case       :			list[int]	,   __snake_case       :			int	,   __snake_case       :			int = DEFAULT_BLOCK_SIZE      ):
  
  
  
  
     """simple docstring"""
  
  
  
  
  
  
  
     _lowerCamelCase  :				list[str]      =		[]
     for block_int in block_ints:
        _lowerCamelCase  :				list[str]      =		[]
        for i in range(block_size - 1	,   -1	,   -1      ):
           if len(__snake_case      ) + i < message_length:
              _lowerCamelCase  :				Optional[int]      =		block_int // (BYTE_SIZE**i)
              _lowerCamelCase  :				Dict      =		block_int % (BYTE_SIZE**i)
              block_message.insert(0	,   chr(__snake_case      )      )
        message.extend(__snake_case      )
     return "".join(__snake_case      )
  
  def 							_snake_case			(      __snake_case       :			str	,   __snake_case       :			tuple[int, int]	,   __snake_case       :			int = DEFAULT_BLOCK_SIZE      ):
  
  
  
  
     """simple docstring"""
  
  
  
  
  
  
  
     _lowerCamelCase  :				Dict      =		[]
     _lowerCamelCase      ,						_lowerCamelCase  :				Tuple      =		key
  
     for block in get_blocks_from_text(__snake_case	,   __snake_case      ):
        encrypted_blocks.append(pow(__snake_case	,   __snake_case	,   __snake_case      )      )
     return encrypted_blocks
  
  def 							_snake_case			(      __snake_case       :			list[int]	,   __snake_case       :			int	,   __snake_case       :			tuple[int, int]	,   __snake_case       :			int = DEFAULT_BLOCK_SIZE	,   ):
  
  
  
  
     """simple docstring"""
  
  
  
  
  
  
  
     _lowerCamelCase  :				List[Any]      =		[]
     _lowerCamelCase      ,						_lowerCamelCase  :				List[Any]      =		key
     for block in encrypted_blocks:
        decrypted_blocks.append(pow(__snake_case	,   __snake_case	,   __snake_case      )      )
     return get_text_from_blocks(__snake_case	,   __snake_case	,   __snake_case      )
  
  def 							_snake_case			(      __snake_case       :			str      ):
  
  
  
  
     """simple docstring"""
  
  
  
  
  
  
  
     with open(__snake_case      ) as fo:
        _lowerCamelCase  :				Union[str, Any]      =		fo.read()
     _lowerCamelCase      ,						_lowerCamelCase      ,						_lowerCamelCase  :				int      =		content.split(""","""      )
     return (int(__snake_case      ), int(__snake_case      ), int(__snake_case      ))
  
  def 							_snake_case			(      __snake_case       :			str	,   __snake_case       :			str	,   __snake_case       :			str	,   __snake_case       :			int = DEFAULT_BLOCK_SIZE	,   ):
  
  
  
  
     """simple docstring"""
  
  
  
  
  
  
  
     _lowerCamelCase      ,						_lowerCamelCase      ,						_lowerCamelCase  :				int      =		read_key_file(__snake_case      )
     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	,   __snake_case      )      )
  
     _lowerCamelCase  :				Optional[Any]      =		[str(__snake_case      ) for i in encrypt_message(__snake_case	,   (n, e)	,   __snake_case      )]
  
     _lowerCamelCase  :				Any      =		""",""".join(__snake_case      )
     _lowerCamelCase  :				str      =		F'{len(__snake_case      )}_{block_size}_{encrypted_content}'
     with open(__snake_case	,   """w"""      ) as fo:
        fo.write(__snake_case      )
     return encrypted_content
  
  def 							_snake_case			(      __snake_case       :			str	,   __snake_case       :			str      ):
  
  
  
  
     """simple docstring"""
  
  
  
  
  
  
  
     _lowerCamelCase      ,						_lowerCamelCase      ,						_lowerCamelCase  :				List[Any]      =		read_key_file(__snake_case      )
     with open(__snake_case      ) as fo:
        _lowerCamelCase  :				List[str]      =		fo.read()
     _lowerCamelCase      ,						_lowerCamelCase      ,						_lowerCamelCase  :				Union[str, Any]      =		content.split("""_"""      )
     _lowerCamelCase  :				Union[str, Any]      =		int(__snake_case      )
     _lowerCamelCase  :				Union[str, Any]      =		int(__snake_case      )
  
     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	,   __snake_case      )      )
  
     _lowerCamelCase  :				Union[str, Any]      =		[]
     for block in encrypted_message.split(""","""      ):
        encrypted_blocks.append(int(__snake_case      )      )
  
     return decrypt_message(__snake_case	,   __snake_case	,   (n, d)	,   __snake_case      )
  
  def 							_snake_case			(      ):
  
  
  
  
     """simple docstring"""
  
  
  
  
  
  
  
     _lowerCamelCase  :				Optional[Any]      =		"""encrypted_file.txt"""
     _lowerCamelCase  :				Optional[Any]      =		input(R"""Encrypt\Decrypt [e\d]: """      )
  
     if response.lower().startswith("""e"""      ):
        _lowerCamelCase  :				str      =		"""encrypt"""
     elif response.lower().startswith("""d"""      ):
        _lowerCamelCase  :				List[str]      =		"""decrypt"""
  
     if mode == "encrypt":
        if not os.path.exists("""rsa_pubkey.txt"""      ):
           rkg.make_key_files("""rsa"""	,   1024      )
  
        _lowerCamelCase  :				Any      =		input("""\nEnter message: """      )
        _lowerCamelCase  :				Optional[Any]      =		"""rsa_pubkey.txt"""
        print(F'Encrypting and writing to {filename}...'      )
        _lowerCamelCase  :				List[Any]      =		encrypt_and_write_to_file(__snake_case	,   __snake_case	,   __snake_case      )
  
        print("""\nEncrypted text:"""      )
        print(__snake_case      )
  
     elif mode == "decrypt":
        _lowerCamelCase  :				Tuple      =		"""rsa_privkey.txt"""
        print(F'Reading from {filename} and decrypting...'      )
        _lowerCamelCase  :				int      =		read_from_file_and_decrypt(__snake_case	,   __snake_case      )
        print("""writing decryption to rsa_decryption.txt..."""      )
        with open("""rsa_decryption.txt"""	,   """w"""      ) as dec:
           dec.write(__snake_case      )
  
        print("""\nDecryption:"""      )
        print(__snake_case      )
  
  
  if __name__ == "__main__":
   main()
  
  
style_context: 
  
  
  """simple docstring"""
  from dataclasses import dataclass
  
  UpperCAmelCase   =	"""0.1"""
  UpperCAmelCase   =	"""Lucia Harcekova"""
  
  
  
  
  @dataclass
  class   lowercase__							:
     __UpperCAmelCase       					=				42
     __UpperCAmelCase       					=				42
     __UpperCAmelCase       					=				42
  
  
  
  
  
     def __repr__(       self)     ->     str:
        return F'({self.offset}, {self.length}, {self.indicator})'
  
  
  
  
  
  
  
  class   lowercase__							:
  
  
  
  
  
     def __init__(       self			,      SCREAMING_SNAKE_CASE = 13			,      SCREAMING_SNAKE_CASE = 6)     ->     None:
        _lowerCamelCase  :				Optional[Any]      =		window_size
        _lowerCamelCase  :				List[str]      =		lookahead_buffer_size
        _lowerCamelCase  :				List[Any]      =		self.window_size - self.lookahead_buffer_size
  
  
  
  
  
     def 		UpperCamelCase_     (       self			,      SCREAMING_SNAKE_CASE)     ->     list[Token]:
        _lowerCamelCase  :				Union[str, Any]      =		[]
        _lowerCamelCase  :				Tuple      =		""""""
  
        # while there are still characters in text to compress
        while text:
           # find the next encoding phrase
           # - triplet with offset, length, indicator (the next encoding character)
           _lowerCamelCase  :				List[Any]      =		self._find_encoding_token(SCREAMING_SNAKE_CASE			,      SCREAMING_SNAKE_CASE)
  
           # update the search buffer:
           # - add new characters from text into it
           # - check if size exceed the max search buffer size, if so, drop the
           #   oldest elements
           search_buffer += text[: token.length + 1]
           if len(SCREAMING_SNAKE_CASE) > self.search_buffer_size:
              _lowerCamelCase  :				int      =		search_buffer[-self.search_buffer_size :]
  
           # update the text
           _lowerCamelCase  :				Tuple      =		text[token.length + 1 :]
  
           # append the token to output
           output.append(SCREAMING_SNAKE_CASE)
  
        return output
  
  
  
  
  
     def 		UpperCamelCase_     (       self			,      SCREAMING_SNAKE_CASE)     ->     str:
        _lowerCamelCase  :				str      =		""""""
  
        for token in tokens:
           for _ in range(token.length):
              output += output[-token.offset]
           output += token.indicator
  
        return output
  
  
  
  
  
     def 		UpperCamelCase_     (       self			,      SCREAMING_SNAKE_CASE			,      SCREAMING_SNAKE_CASE)     ->     Token:
  
        if not text:
           raise ValueError("""We need some text to work with.""")
  
        # Initialise result parameters to default values
        _lowerCamelCase      ,						_lowerCamelCase  :				List[str]      =		0, 0
  
        if not search_buffer:
           return Token(SCREAMING_SNAKE_CASE			,      SCREAMING_SNAKE_CASE			,      text[length])
  
        for i, character in enumerate(SCREAMING_SNAKE_CASE):
           _lowerCamelCase  :				Tuple      =		len(SCREAMING_SNAKE_CASE) - i
           if character == text[0]:
              _lowerCamelCase  :				Any      =		self._match_length_from_index(SCREAMING_SNAKE_CASE			,      SCREAMING_SNAKE_CASE			,      0			,      SCREAMING_SNAKE_CASE)
              # if the found length is bigger than the current or if it's equal,
              # which means it's offset is smaller: update offset and length
              if found_length >= length:
                 _lowerCamelCase      ,						_lowerCamelCase  :				Optional[int]      =		found_offset, found_length
  
        return Token(SCREAMING_SNAKE_CASE			,      SCREAMING_SNAKE_CASE			,      text[length])
  
  
  
  
  
     def 		UpperCamelCase_     (       self			,      SCREAMING_SNAKE_CASE			,      SCREAMING_SNAKE_CASE			,      SCREAMING_SNAKE_CASE			,      SCREAMING_SNAKE_CASE)     ->     int:
        if not text or text[text_index] != window[window_index]:
           return 0
        return 1 + self._match_length_from_index(
            SCREAMING_SNAKE_CASE			,      window + text[text_index]			,      text_index + 1			,      window_index + 1)
  
  
  if __name__ == "__main__":
   from doctest import testmod
  
   testmod()
   # Initialize compressor class
   UpperCAmelCase   =	LZaaCompressor(window_size=13, lookahead_buffer_size=6)
  
   # Example
   UpperCAmelCase   =	"""cabracadabrarrarrad"""
   UpperCAmelCase   =	lzaa_compressor.compress(TEXT)
   print(lzaa_compressor.compress("""ababcbababaa"""))
   UpperCAmelCase   =	lzaa_compressor.decompress(compressed_text)
   assert decompressed_text == TEXT, "The LZ77 algorithm returned the invalid result."
  
  