





"""simple docstring"""


import os
import sys

from . import rsa_key_generator as rkg

a__       :  Dict       		=					1_2_8
a__       :  Union[str, Any]       		=					2_5_6





def 				a__      (	_UpperCAmelCase						,  _UpperCAmelCase = DEFAULT_BLOCK_SIZE						)     ->	list[int]:

 '''simple docstring'''






 snake_case__     				=					message.encode("ascii"						)

 snake_case__     				=					[]
 for block_start in range(0						,  len(_UpperCAmelCase						)						,  _UpperCAmelCase						):
  snake_case__     				=					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 				a__      (	_UpperCAmelCase						,  _UpperCAmelCase						,  _UpperCAmelCase = DEFAULT_BLOCK_SIZE						)     ->	str:

 '''simple docstring'''






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





def 				a__      (	_UpperCAmelCase						,  _UpperCAmelCase						,  _UpperCAmelCase = DEFAULT_BLOCK_SIZE						)     ->	list[int]:

 '''simple docstring'''






 snake_case__     				=					[]
 snake_case__				, snake_case__     				=					key

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





def 				a__      (	_UpperCAmelCase						,  _UpperCAmelCase						,  _UpperCAmelCase						,  _UpperCAmelCase = DEFAULT_BLOCK_SIZE						,  )     ->	str:

 '''simple docstring'''






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





def 				a__      (	_UpperCAmelCase						)     ->	tuple[int, int, int]:

 '''simple docstring'''






 with open(_UpperCAmelCase						) as fo:
  snake_case__     				=					fo.read()
 snake_case__				, snake_case__				, snake_case__     				=					content.split(","						)
 return (int(_UpperCAmelCase						), int(_UpperCAmelCase						), int(_UpperCAmelCase						))





def 				a__      (	_UpperCAmelCase						,  _UpperCAmelCase						,  _UpperCAmelCase						,  _UpperCAmelCase = DEFAULT_BLOCK_SIZE						,  )     ->	str:

 '''simple docstring'''






 snake_case__				, snake_case__				, snake_case__     				=					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						)						)

 snake_case__     				=					[str(_UpperCAmelCase						) for i in encrypt_message(_UpperCAmelCase						,  (n, e)						,  _UpperCAmelCase						)]

 snake_case__     				=					",".join(_UpperCAmelCase						)
 snake_case__     				=					f"{len(_UpperCAmelCase						)}_{block_size}_{encrypted_content}"
 with open(_UpperCAmelCase						,  "w"						) as fo:
  fo.write(_UpperCAmelCase						)
 return encrypted_content





def 				a__      (	_UpperCAmelCase						,  _UpperCAmelCase						)     ->	str:

 '''simple docstring'''






 snake_case__				, snake_case__				, snake_case__     				=					read_key_file(_UpperCAmelCase						)
 with open(_UpperCAmelCase						) as fo:
  snake_case__     				=					fo.read()
 snake_case__				, snake_case__				, snake_case__     				=					content.split("_"						)
 snake_case__     				=					int(_UpperCAmelCase						)
 snake_case__     				=					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						)						)

 snake_case__     				=					[]
 for block in encrypted_message.split(","						):
  encrypted_blocks.append(int(_UpperCAmelCase						)						)

 return decrypt_message(_UpperCAmelCase						,  _UpperCAmelCase						,  (n, d)						,  _UpperCAmelCase						)





def 				a__      (	)     ->	None:

 '''simple docstring'''






 snake_case__     				=					"encrypted_file.txt"
 snake_case__     				=					input(R"Encrypt\Decrypt [e\d]: "						)

 if response.lower().startswith("e"						):
  snake_case__     				=					"encrypt"
 elif response.lower().startswith("d"						):
  snake_case__     				=					"decrypt"

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

  snake_case__     				=					input("\nEnter message: "						)
  snake_case__     				=					"rsa_pubkey.txt"
  print(f"Encrypting and writing to {filename}..."						)
  snake_case__     				=					encrypt_and_write_to_file(_UpperCAmelCase						,  _UpperCAmelCase						,  _UpperCAmelCase						)

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

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








"""simple docstring"""


def 				a__      (	_UpperCAmelCase						,  _UpperCAmelCase						)     ->	int:

 '''simple docstring'''






 if len(_UpperCAmelCase						) < len(_UpperCAmelCase						):
  return levenshtein_distance(_UpperCAmelCase						,  _UpperCAmelCase						)

 if len(_UpperCAmelCase						) == 0:
  return len(_UpperCAmelCase						)

 snake_case__     				=					list(range(len(_UpperCAmelCase						) + 1						)						)

 for i, ca in enumerate(_UpperCAmelCase						):
  snake_case__     				=					[i + 1]

  for j, ca in enumerate(_UpperCAmelCase						):
   # Calculate insertions, deletions and substitutions
   snake_case__     				=					previous_row[j + 1] + 1
   snake_case__     				=					current_row[j] + 1
   snake_case__     				=					previous_row[j] + (ca != ca)

   # Get the minimum to append to the current row
   current_row.append(min(_UpperCAmelCase						,  _UpperCAmelCase						,  _UpperCAmelCase						)						)

  # Store the previous row
  snake_case__     				=					current_row

 # Returns the last element (distance)
 return previous_row[-1]


if __name__ == "__main__":
   a__       :  Optional[int]       		=					input("""Enter the first word:\n""").strip()
   a__       :  int       		=					input("""Enter the second word:\n""").strip()

   a__       :  Union[str, Any]       		=					levenshtein_distance(first_word, second_word)
   print(f'''Levenshtein distance between {first_word} and {second_word} is {result}''')

