






import os
import sys

from . import rsa_key_generator as rkg

__UpperCAmelCase      				=							1_2_8
__UpperCAmelCase      				=							2_5_6





def 		A_			(		lowercase_					,       lowercase_ = DEFAULT_BLOCK_SIZE	)							->Any:







 """simple docstring"""

 SCREAMING_SNAKE_CASE							  =						message.encode('ascii'	)

 SCREAMING_SNAKE_CASE							  =						[]
 for block_start in range(0					,       len(lowercase__	)					,       lowercase__	):
  SCREAMING_SNAKE_CASE							  =						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 		A_			(		lowercase_					,       lowercase_					,       lowercase_ = DEFAULT_BLOCK_SIZE	)							->List[str]:







 """simple docstring"""

 SCREAMING_SNAKE_CASE							  =						[]
 for block_int in block_ints:
  SCREAMING_SNAKE_CASE							  =						[]
  for i in range(block_size - 1					,       -1					,       -1	):
   if len(lowercase__	) + i < message_length:
    SCREAMING_SNAKE_CASE							  =						block_int // (BYTE_SIZE**i)
    SCREAMING_SNAKE_CASE							  =						block_int % (BYTE_SIZE**i)
    block_message.insert(0					,       chr(lowercase__	)	)
  message.extend(lowercase__	)
 return "".join(lowercase__	)





def 		A_			(		lowercase_					,       lowercase_					,       lowercase_ = DEFAULT_BLOCK_SIZE	)							->str:







 """simple docstring"""

 SCREAMING_SNAKE_CASE							  =						[]
 SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE							  =						key

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





def 		A_			(		lowercase_					,       lowercase_					,       lowercase_					,       lowercase_ = DEFAULT_BLOCK_SIZE					,       )							->List[str]:







 """simple docstring"""

 SCREAMING_SNAKE_CASE							  =						[]
 SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE							  =						key
 for block in encrypted_blocks:
  decrypted_blocks.append(pow(lowercase__					,       lowercase__					,       lowercase__	)	)
 return get_text_from_blocks(lowercase__					,       lowercase__					,       lowercase__	)





def 		A_			(		lowercase_	)							->Dict:







 """simple docstring"""

 with open(lowercase__	) as fo:
  SCREAMING_SNAKE_CASE							  =						fo.read()
 SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE							  =						content.split(','	)
 return (int(lowercase__	), int(lowercase__	), int(lowercase__	))





def 		A_			(		lowercase_					,       lowercase_					,       lowercase_					,       lowercase_ = DEFAULT_BLOCK_SIZE					,       )							->Optional[int]:







 """simple docstring"""

 SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE							  =						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							  =						[str(lowercase__	) for i in encrypt_message(lowercase__					,       (n, e)					,       lowercase__	)]

 SCREAMING_SNAKE_CASE							  =						','.join(lowercase__	)
 SCREAMING_SNAKE_CASE							  =						f'''{len(lowercase__	)}_{block_size}_{encrypted_content}'''
 with open(lowercase__					,       'w'	) as fo:
  fo.write(lowercase__	)
 return encrypted_content





def 		A_			(		lowercase_					,       lowercase_	)							->int:







 """simple docstring"""

 SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE							  =						read_key_file(lowercase__	)
 with open(lowercase__	) as fo:
  SCREAMING_SNAKE_CASE							  =						fo.read()
 SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE  , SCREAMING_SNAKE_CASE							  =						content.split('_'	)
 SCREAMING_SNAKE_CASE							  =						int(lowercase__	)
 SCREAMING_SNAKE_CASE							  =						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							  =						[]
 for block in encrypted_message.split(','	):
  encrypted_blocks.append(int(lowercase__	)	)

 return decrypt_message(lowercase__					,       lowercase__					,       (n, d)					,       lowercase__	)





def 		A_			(		)							->Dict:







 """simple docstring"""

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

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

 if mode == "encrypt":
  if not os.path.exists('rsa_pubkey.txt'	):
   rkg.make_key_files('rsa'					,       1_0_2_4	)

  SCREAMING_SNAKE_CASE							  =						input('\nEnter message: '	)
  SCREAMING_SNAKE_CASE							  =						'rsa_pubkey.txt'
  print(f'''Encrypting and writing to {filename}...'''	)
  SCREAMING_SNAKE_CASE							  =						encrypt_and_write_to_file(lowercase__					,       lowercase__					,       lowercase__	)

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

 elif mode == "decrypt":
  SCREAMING_SNAKE_CASE							  =						'rsa_privkey.txt'
  print(f'''Reading from {filename} and decrypting...'''	)
  SCREAMING_SNAKE_CASE							  =						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()












def 		A_			(		lowercase_	)							->int:







 """simple docstring"""

 if not isinstance(lowercase_					,       lowercase_	):
  SCREAMING_SNAKE_CASE							  =						f'''Input value of [number={number}] must be an integer'''
  raise TypeError(lowercase_	)
 if number < 1:
  raise ValueError('Input must be a positive integer'	)
 return number * (2 * number - 1)


if __name__ == "__main__":
      import doctest

      doctest.testmod()




