



import os
import sys

from . import rsa_key_generator as rkg

_UpperCAmelCase       =     1_2_8
_UpperCAmelCase       =     2_5_6





def        __magic_name__			(							lowercase							,     lowercase = DEFAULT_BLOCK_SIZE	):
   SCREAMING_SNAKE_CASE_:	Optional[int]            =message.encode("""ascii"""	)

   SCREAMING_SNAKE_CASE_:	List[Any]            =[]
   for block_start in range(0							,     len(lowercase	)							,     lowercase	):
      SCREAMING_SNAKE_CASE_:	Union[str, Any]            =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        __magic_name__			(							lowercase							,     lowercase							,     lowercase = DEFAULT_BLOCK_SIZE	):
   SCREAMING_SNAKE_CASE_:	list[str]            =[]
   for block_int in block_ints:
      SCREAMING_SNAKE_CASE_:	list[str]            =[]
      for i in range(block_size - 1							,     -1							,     -1	):
         if len(lowercase	) + i < message_length:
            SCREAMING_SNAKE_CASE_:	Any            =block_int // (BYTE_SIZE**i)
            SCREAMING_SNAKE_CASE_:	Any            =block_int % (BYTE_SIZE**i)
            block_message.insert(0							,     chr(lowercase	)	)
      message.extend(lowercase	)
   return "".join(lowercase	)





def        __magic_name__			(							lowercase							,     lowercase							,     lowercase = DEFAULT_BLOCK_SIZE	):
   SCREAMING_SNAKE_CASE_:	Any            =[]
   SCREAMING_SNAKE_CASE_:	str            =key

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





def        __magic_name__			(							lowercase							,     lowercase							,     lowercase							,     lowercase = DEFAULT_BLOCK_SIZE							,     ):
   SCREAMING_SNAKE_CASE_:	List[str]            =[]
   SCREAMING_SNAKE_CASE_:	Tuple            =key
   for block in encrypted_blocks:
      decrypted_blocks.append(pow(lowercase							,     lowercase							,     lowercase	)	)
   return get_text_from_blocks(lowercase							,     lowercase							,     lowercase	)





def        __magic_name__			(							lowercase	):
   with open(lowercase	) as fo:
      SCREAMING_SNAKE_CASE_:	Dict            =fo.read()
   SCREAMING_SNAKE_CASE_:	List[Any]            =content.split(""","""	)
   return (int(lowercase	), int(lowercase	), int(lowercase	))





def        __magic_name__			(							lowercase							,     lowercase							,     lowercase							,     lowercase = DEFAULT_BLOCK_SIZE							,     ):
   SCREAMING_SNAKE_CASE_:	List[str]            =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	)	)

   SCREAMING_SNAKE_CASE_:	Any            =[str(lowercase	) for i in encrypt_message(lowercase							,     (n, e)							,     lowercase	)]

   SCREAMING_SNAKE_CASE_:	Optional[int]            =""",""".join(lowercase	)
   SCREAMING_SNAKE_CASE_:	List[str]            =f'''{len(lowercase	)}_{block_size}_{encrypted_content}'''
   with open(lowercase							,     """w"""	) as fo:
      fo.write(lowercase	)
   return encrypted_content





def        __magic_name__			(							lowercase							,     lowercase	):
   SCREAMING_SNAKE_CASE_:	Optional[int]            =read_key_file(lowercase	)
   with open(lowercase	) as fo:
      SCREAMING_SNAKE_CASE_:	Dict            =fo.read()
   SCREAMING_SNAKE_CASE_:	List[Any]            =content.split("""_"""	)
   SCREAMING_SNAKE_CASE_:	str            =int(lowercase	)
   SCREAMING_SNAKE_CASE_:	Union[str, Any]            =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	)	)

   SCREAMING_SNAKE_CASE_:	Optional[Any]            =[]
   for block in encrypted_message.split(""","""	):
      encrypted_blocks.append(int(lowercase	)	)

   return decrypt_message(lowercase							,     lowercase							,     (n, d)							,     lowercase	)





def        __magic_name__			(							):
   SCREAMING_SNAKE_CASE_:	str            ="""encrypted_file.txt"""
   SCREAMING_SNAKE_CASE_:	List[Any]            =input(R"""Encrypt\Decrypt [e\d]: """	)

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

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

      SCREAMING_SNAKE_CASE_:	str            =input("""\nEnter message: """	)
      SCREAMING_SNAKE_CASE_:	Dict            ="""rsa_pubkey.txt"""
      print(f'''Encrypting and writing to {filename}...'''	)
      SCREAMING_SNAKE_CASE_:	str            =encrypt_and_write_to_file(lowercase							,     lowercase							,     lowercase	)

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

   elif mode == "decrypt":
      SCREAMING_SNAKE_CASE_:	Union[str, Any]            ="""rsa_privkey.txt"""
      print(f'''Reading from {filename} and decrypting...'''	)
      SCREAMING_SNAKE_CASE_:	Dict            =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()








"""simple docstring"""
def        __magic_name__			(							lowercase = 1000	):
   SCREAMING_SNAKE_CASE_:	Dict            =0
   SCREAMING_SNAKE_CASE_:	Any            =0
   while 1:
      num += 3
      if num >= n:
         break
      total += num
      num += 2
      if num >= n:
         break
      total += num
      num += 1
      if num >= n:
         break
      total += num
      num += 3
      if num >= n:
         break
      total += num
      num += 1
      if num >= n:
         break
      total += num
      num += 2
      if num >= n:
         break
      total += num
      num += 3
      if num >= n:
         break
      total += num
   return total


if __name__ == "__main__":
   print(f"""{solution() = }""")



