

'''simple docstring'''
import os
import sys

from . import rsa_key_generator as rkg

lowerCamelCase				:   int      				=  1_2_8
lowerCamelCase				:   Any      				=  2_5_6


def  _lowerCAmelCase      (		_UpperCamelCase		:  str							,				_UpperCamelCase		:  int = DEFAULT_BLOCK_SIZE       )   ->    list[int]:
     """simple docstring"""




     _SCREAMING_SNAKE_CASE												=message.encode('ascii'       )

     _SCREAMING_SNAKE_CASE												=[]
     for block_start in range(0							,				len(_UpperCamelCase       )							,				_UpperCamelCase       ):
          _SCREAMING_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  _lowerCAmelCase      (		_UpperCamelCase		:  list[int]							,				_UpperCamelCase		:  int							,				_UpperCamelCase		:  int = DEFAULT_BLOCK_SIZE       )   ->    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(_UpperCamelCase       ) + i < message_length:
                    _SCREAMING_SNAKE_CASE												=block_int // (BYTE_SIZE**i)
                    _SCREAMING_SNAKE_CASE												=block_int % (BYTE_SIZE**i)
                    block_message.insert(0							,				chr(_UpperCamelCase       )       )
          message.extend(_UpperCamelCase       )
     return "".join(_UpperCamelCase       )


def  _lowerCAmelCase      (		_UpperCamelCase		:  str							,				_UpperCamelCase		:  tuple[int, int]							,				_UpperCamelCase		:  int = DEFAULT_BLOCK_SIZE       )   ->    list[int]:
     """simple docstring"""




     _SCREAMING_SNAKE_CASE												=[]
     _SCREAMING_SNAKE_CASE					,		_SCREAMING_SNAKE_CASE												=key

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


def  _lowerCAmelCase      (		_UpperCamelCase		:  list[int]							,				_UpperCamelCase		:  int							,				_UpperCamelCase		:  tuple[int, int]							,				_UpperCamelCase		:  int = DEFAULT_BLOCK_SIZE							,				)   ->    str:
     """simple docstring"""




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


def  _lowerCAmelCase      (		_UpperCamelCase		:  str       )   ->    tuple[int, int, int]:
     """simple docstring"""




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


def  _lowerCAmelCase      (		_UpperCamelCase		:  str							,				_UpperCamelCase		:  str							,				_UpperCamelCase		:  str							,				_UpperCamelCase		:  int = DEFAULT_BLOCK_SIZE							,				)   ->    str:
     """simple docstring"""




     _SCREAMING_SNAKE_CASE					,		_SCREAMING_SNAKE_CASE					,		_SCREAMING_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       )       )

     _SCREAMING_SNAKE_CASE												=[str(_UpperCamelCase       ) for i in encrypt_message(_UpperCamelCase							,				(n, e)							,				_UpperCamelCase       )]

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


def  _lowerCAmelCase      (		_UpperCamelCase		:  str							,				_UpperCamelCase		:  str       )   ->    str:
     """simple docstring"""




     _SCREAMING_SNAKE_CASE					,		_SCREAMING_SNAKE_CASE					,		_SCREAMING_SNAKE_CASE												=read_key_file(_UpperCamelCase       )
     with open(_UpperCamelCase       ) as fo:
          _SCREAMING_SNAKE_CASE												=fo.read()
     _SCREAMING_SNAKE_CASE					,		_SCREAMING_SNAKE_CASE					,		_SCREAMING_SNAKE_CASE												=content.split('_'       )
     _SCREAMING_SNAKE_CASE												=int(_UpperCamelCase       )
     _SCREAMING_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       )       )

     _SCREAMING_SNAKE_CASE												=[]
     for block in encrypted_message.split(','       ):
          encrypted_blocks.append(int(_UpperCamelCase       )       )

     return decrypt_message(_UpperCamelCase							,				_UpperCamelCase							,				(n, d)							,				_UpperCamelCase       )


def  _lowerCAmelCase      (		)   ->    None:
     """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'							,				10_24       )

          _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(_UpperCamelCase							,				_UpperCamelCase							,				_UpperCamelCase       )

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

     elif mode == "decrypt":
          _SCREAMING_SNAKE_CASE												='rsa_privkey.txt'
          print(f"Reading from {filename} and decrypting..."       )
          _SCREAMING_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  _lowerCAmelCase      (		_UpperCamelCase		:  Optional[int]							,				_UpperCamelCase		:  Optional[Any]       )   ->    Tuple:
     """simple docstring"""




     _SCREAMING_SNAKE_CASE												=len(_UpperCamelCase       )
     # Create a stack and push index of fist element to it
     _SCREAMING_SNAKE_CASE												=[]
     st.append(0       )

     # Span value of first element is always 1
     _SCREAMING_SNAKE_CASE												=1

     # Calculate span values for rest of the elements
     for i in range(1							,				_UpperCamelCase       ):
          # Pop elements from stack while stack is not
          # empty and top of stack is smaller than price[i]
          while len(_UpperCamelCase       ) > 0 and price[st[0]] <= price[i]:
               st.pop()

          # If stack becomes empty, then price[i] is greater
          # than all elements on left of it, i.e. price[0],
          # price[1], ..price[i-1]. Else the price[i]  is
          # greater than elements after top of stack
          _SCREAMING_SNAKE_CASE												=i + 1 if len(_UpperCamelCase       ) <= 0 else (i - st[0])

          # Push this element to stack
          st.append(_UpperCamelCase       )


def  _lowerCAmelCase      (		_UpperCamelCase		:  Any							,				_UpperCamelCase		:  str       )   ->    Any:
     """simple docstring"""




     for i in range(0							,				_UpperCamelCase       ):
          print(arr[i]							,				end=' '       )


# Driver program to test above function
lowerCamelCase				:   str      				=  [1_0, 4, 5, 9_0, 1_2_0, 8_0]
lowerCamelCase				:   str      				=  [0 for i in range(len(price) + 1)]

# Fill the span values in array S[]
calculation_span(price, S)







print_array(S, len(price))
