code: 
  
  
  
  
  
  import os
  import sys
  
  from . import rsa_key_generator as rkg
  
  _UpperCamelCase       = 128
  _UpperCamelCase       = 256
  
  
  
  
  
  
  
  def       lowerCAmelCase__(	lowercase       :    str   ,     lowercase       :    int = DEFAULT_BLOCK_SIZE				) ->    list[int]:
    __snake_case   :				List[Any]        =       message.encode("ascii"				)
  
    __snake_case   :				Optional[int]        =       []
    for block_start in range(0   ,     len(lowercase				)   ,     lowercase				):
      __snake_case   :				Optional[int]        =       0
      for i in range(lowercase   ,     min(block_start + block_size   ,     len(lowercase				)				)				):
        block_int += message_bytes[i] * (BYTE_SIZE ** (i % block_size))
      block_ints.append(lowercase				)
    return block_ints
  
  
  
  
  
  
  
  def       lowerCAmelCase__(	lowercase       :    list[int]   ,     lowercase       :    int   ,     lowercase       :    int = DEFAULT_BLOCK_SIZE				) ->    str:
    __snake_case   :				list[str]        =       []
    for block_int in block_ints:
      __snake_case   :				list[str]        =       []
      for i in range(block_size - 1   ,     -1   ,     -1				):
        if len(lowercase				) + i < message_length:
          __snake_case   :				Dict        =       block_int // (BYTE_SIZE**i)
          __snake_case   :				Optional[int]        =       block_int % (BYTE_SIZE**i)
          block_message.insert(0   ,     chr(lowercase				)				)
      message.extend(lowercase				)
    return "".join(lowercase				)
  
  
  
  
  
  
  
  def       lowerCAmelCase__(	lowercase       :    str   ,     lowercase       :    tuple[int, int]   ,     lowercase       :    int = DEFAULT_BLOCK_SIZE				) ->    list[int]:
    __snake_case   :				Any        =       []
    __snake_case    ,   __snake_case   :				Tuple        =       key
  
    for block in get_blocks_from_text(lowercase   ,     lowercase				):
      encrypted_blocks.append(pow(lowercase   ,     lowercase   ,     lowercase				)				)
    return encrypted_blocks
  
  
  
  
  
  
  
  def       lowerCAmelCase__(	lowercase       :    list[int]   ,     lowercase       :    int   ,     lowercase       :    tuple[int, int]   ,     lowercase       :    int = DEFAULT_BLOCK_SIZE   ,     ) ->    str:
    __snake_case   :				Optional[int]        =       []
    __snake_case    ,   __snake_case   :				Union[str, Any]        =       key
    for block in encrypted_blocks:
      decrypted_blocks.append(pow(lowercase   ,     lowercase   ,     lowercase				)				)
    return get_text_from_blocks(lowercase   ,     lowercase   ,     lowercase				)
  
  
  
  
  
  
  
  def       lowerCAmelCase__(	lowercase       :    str				) ->    tuple[int, int, int]:
    with open(lowercase				) as fo:
      __snake_case   :				List[Any]        =       fo.read()
    __snake_case    ,   __snake_case    ,   __snake_case   :				Optional[Any]        =       content.split(","				)
    return (int(lowercase				), int(lowercase				), int(lowercase				))
  
  
  
  
  
  
  
  def       lowerCAmelCase__(	lowercase       :    str   ,     lowercase       :    str   ,     lowercase       :    str   ,     lowercase       :    int = DEFAULT_BLOCK_SIZE   ,     ) ->    str:
    __snake_case    ,   __snake_case    ,   __snake_case   :				Any        =       read_key_file(lowercase				)
    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   ,     lowercase				)				)
  
    __snake_case   :				Tuple        =       [str(lowercase				) for i in encrypt_message(lowercase   ,     (n, e)   ,     lowercase				)]
  
    __snake_case   :				str        =       ",".join(lowercase				)
    __snake_case   :				Tuple        =       f"""{len(lowercase				)}_{block_size}_{encrypted_content}"""
    with open(lowercase   ,     "w"				) as fo:
      fo.write(lowercase				)
    return encrypted_content
  
  
  
  
  
  
  
  def       lowerCAmelCase__(	lowercase       :    str   ,     lowercase       :    str				) ->    str:
    __snake_case    ,   __snake_case    ,   __snake_case   :				Optional[Any]        =       read_key_file(lowercase				)
    with open(lowercase				) as fo:
      __snake_case   :				str        =       fo.read()
    __snake_case    ,   __snake_case    ,   __snake_case   :				Dict        =       content.split("_"				)
    __snake_case   :				str        =       int(lowercase				)
    __snake_case   :				Optional[int]        =       int(lowercase				)
  
    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   ,     lowercase				)				)
  
    __snake_case   :				Union[str, Any]        =       []
    for block in encrypted_message.split(","				):
      encrypted_blocks.append(int(lowercase				)				)
  
    return decrypt_message(lowercase   ,     lowercase   ,     (n, d)   ,     lowercase				)
  
  
  
  
  
  
  
  def       lowerCAmelCase__(	) ->    None:
    __snake_case   :				Optional[Any]        =       "encrypted_file.txt"
    __snake_case   :				Any        =       input(R"Encrypt\Decrypt [e\d]: "				)
  
    if response.lower().startswith("e"				):
      __snake_case   :				str        =       "encrypt"
    elif response.lower().startswith("d"				):
      __snake_case   :				Union[str, Any]        =       "decrypt"
  
    if mode == "encrypt":
      if not os.path.exists("rsa_pubkey.txt"				):
        rkg.make_key_files("rsa"   ,     1024				)
  
      __snake_case   :				List[str]        =       input("\nEnter message: "				)
      __snake_case   :				List[str]        =       "rsa_pubkey.txt"
      print(f"""Encrypting and writing to {filename}..."""				)
      __snake_case   :				Optional[int]        =       encrypt_and_write_to_file(lowercase   ,     lowercase   ,     lowercase				)
  
      print("\nEncrypted text:"				)
      print(lowercase				)
  
    elif mode == "decrypt":
      __snake_case   :				Dict        =       "rsa_privkey.txt"
      print(f"""Reading from {filename} and decrypting..."""				)
      __snake_case   :				int        =       read_from_file_and_decrypt(lowercase   ,     lowercase				)
      print("writing decryption to rsa_decryption.txt..."				)
      with open("rsa_decryption.txt"   ,     "w"				) as dec:
        dec.write(lowercase				)
  
      print("\nDecryption:"				)
      print(lowercase				)
  
  
  if __name__ == "__main__":
       main()
  
  
style_context: 
  
  
  
  
  
  import torch
  from torch import autograd
  
  
  
  
  class 				_lowerCamelCase (    autograd.Function    ):
  
  
  
        """simple docstring"""
  
  
  
  
  
  
        @staticmethod
        def 						UpperCAmelCase		( UpperCAmelCase				,						UpperCAmelCase				,						UpperCAmelCase				,						UpperCAmelCase   )       ->   str:
  
  
  
  
  
  
          '''simple docstring'''
  
  
  
  
  
  
          __snake_case   :				Dict        =       inputs.numel()
          __snake_case   :				Optional[int]        =       int(0.005 * nb_elems   ) + 1
          if sigmoid:
            __snake_case   :				Any        =       (torch.sigmoid(UpperCAmelCase   ) > threshold).type(inputs.type()   )
          else:
            __snake_case   :				Optional[int]        =       (inputs > threshold).type(inputs.type()   )
          if mask.sum() < nb_min:
            # We limit the pruning so that at least 0.5% (half a percent) of the weights are remaining
            __snake_case   :				List[str]        =       inputs.flatten().kthvalue(max(nb_elems - nb_min				,						1   )   ).values
            __snake_case   :				Union[str, Any]        =       (inputs > k_threshold).type(inputs.type()   )
          return mask
  
  
  
  
  
  
  
        @staticmethod
        def 						UpperCAmelCase		( UpperCAmelCase				,						UpperCAmelCase   )       ->   Optional[int]:
  
  
  
  
  
  
          '''simple docstring'''
  
  
  
  
  
  
          return gradOutput, None, None
  
  
  
  
  class 				_lowerCamelCase (    autograd.Function    ):
  
  
  
        """simple docstring"""
  
  
  
  
  
  
        @staticmethod
        def 						UpperCAmelCase		( UpperCAmelCase				,						UpperCAmelCase				,						UpperCAmelCase   )       ->   Optional[int]:
  
  
  
  
  
  
          '''simple docstring'''
  
  
  
  
  
  
          __snake_case   :				Optional[int]        =       inputs.clone()
          __snake_case    ,   __snake_case   :				int        =       inputs.flatten().sort(descending=UpperCAmelCase   )
          __snake_case   :				Tuple        =       int(threshold * inputs.numel()   )
  
          # flat_out and mask access the same memory.
          __snake_case   :				Optional[int]        =       mask.flatten()
          __snake_case   :				Union[str, Any]        =       0
          __snake_case   :				Any        =       1
          return mask
  
  
  
  
  
  
  
        @staticmethod
        def 						UpperCAmelCase		( UpperCAmelCase				,						UpperCAmelCase   )       ->   List[str]:
  
  
  
  
  
  
          '''simple docstring'''
  
  
  
  
  
  
          return gradOutput, None
  
  
  
  
  class 				_lowerCamelCase (    a    ):
  
  
  
        """simple docstring"""
  
  
  
  
  
  
        @staticmethod
        def 						UpperCAmelCase		( UpperCAmelCase				,						UpperCAmelCase   )       ->   Any:
  
  
  
  
  
  
          '''simple docstring'''
  
  
  
  
  
  
          __snake_case   :				Union[str, Any]        =       inputs.clone()
          __snake_case    ,   __snake_case   :				Optional[Any]        =       inputs.abs().flatten().sort(descending=UpperCAmelCase   )
          __snake_case   :				List[Any]        =       int(threshold * inputs.numel()   )
  
          # flat_out and mask access the same memory.
          __snake_case   :				Optional[Any]        =       mask.flatten()
          __snake_case   :				Tuple        =       0
          __snake_case   :				Any        =       1
          return mask
  
  