
"""simple docstring"""
import os
import sys

from . import rsa_key_generator as rkg

lowercase		:    Tuple			=       1_28
lowercase		:    List[str]			=       2_56


def      lowerCamelCase_     (						lowerCamelCase_						,					lowerCamelCase_ = DEFAULT_BLOCK_SIZE			)  ->      List[Any]:


					'''simple docstring'''
					__a:    str		     =       message.encode("""ascii"""			)

					__a:    Any		     =       []
					for block_start in range(0						,					len(A__			)						,					A__			):
										__a:    str		     =       0
										for i in range(A__						,					min(block_start + block_size						,					len(A__			)			)			):
															block_int += message_bytes[i] * (BYTE_SIZE ** (i % block_size))
										block_ints.append(A__			)
					return block_ints


def      lowerCamelCase_     (						lowerCamelCase_						,					lowerCamelCase_						,					lowerCamelCase_ = DEFAULT_BLOCK_SIZE			)  ->      int:


					'''simple docstring'''
					__a:    list[str]		     =       []
					for block_int in block_ints:
										__a:    list[str]		     =       []
										for i in range(block_size - 1						,					-1						,					-1			):
															if len(A__			) + i < message_length:
																				__a:    str		     =       block_int // (BYTE_SIZE**i)
																				__a:    List[Any]		     =       block_int % (BYTE_SIZE**i)
																				block_message.insert(0						,					chr(A__			)			)
										message.extend(A__			)
					return "".join(A__			)


def      lowerCamelCase_     (						lowerCamelCase_						,					lowerCamelCase_						,					lowerCamelCase_ = DEFAULT_BLOCK_SIZE			)  ->      Optional[Any]:


					'''simple docstring'''
					__a:    str		     =       []
					__a:    List[Any]		     =       key

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


def      lowerCamelCase_     (						lowerCamelCase_						,					lowerCamelCase_						,					lowerCamelCase_						,					lowerCamelCase_ = DEFAULT_BLOCK_SIZE						,					)  ->      str:


					'''simple docstring'''
					__a:    Any		     =       []
					__a:    Dict		     =       key
					for block in encrypted_blocks:
										decrypted_blocks.append(pow(A__						,					A__						,					A__			)			)
					return get_text_from_blocks(A__						,					A__						,					A__			)


def      lowerCamelCase_     (						lowerCamelCase_			)  ->      Optional[int]:


					'''simple docstring'''
					with open(A__			) as fo:
										__a:    Optional[int]		     =       fo.read()
					__a:    Dict		     =       content.split(""","""			)
					return (int(A__			), int(A__			), int(A__			))


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


					'''simple docstring'''
					__a:    List[Any]		     =       read_key_file(A__			)
					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						,					A__			)			)

					__a:    Any		     =       [str(A__			) for i in encrypt_message(A__						,					(n, e)						,					A__			)]

					__a:    Any		     =       ",".join(A__			)
					__a:    Union[str, Any]		     =       f"""{len(A__			)}_{block_size}_{encrypted_content}"""
					with open(A__						,					"""w"""			) as fo:
										fo.write(A__			)
					return encrypted_content


def      lowerCamelCase_     (						lowerCamelCase_						,					lowerCamelCase_			)  ->      int:


					'''simple docstring'''
					__a:    Any		     =       read_key_file(A__			)
					with open(A__			) as fo:
										__a:    Optional[Any]		     =       fo.read()
					__a:    List[Any]		     =       content.split("""_"""			)
					__a:    List[Any]		     =       int(A__			)
					__a:    str		     =       int(A__			)

					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						,					A__			)			)

					__a:    Optional[int]		     =       []
					for block in encrypted_message.split(""","""			):
										encrypted_blocks.append(int(A__			)			)

					return decrypt_message(A__						,					A__						,					(n, d)						,					A__			)


def      lowerCamelCase_     (						)  ->      Dict:


					'''simple docstring'''
					__a:    List[str]		     =       "encrypted_file.txt"
					__a:    Tuple		     =       input(r"""Encrypt\Decrypt [e\d]: """			)

					if response.lower().startswith("""e"""			):
										__a:    Any		     =       "encrypt"
					elif response.lower().startswith("""d"""			):
										__a:    List[Any]		     =       "decrypt"

					if mode == "encrypt":
										if not os.path.exists("""rsa_pubkey.txt"""			):
															rkg.make_key_files("""rsa"""						,					10_24			)

										__a:    List[Any]		     =       input("""\nEnter message: """			)
										__a:    List[Any]		     =       "rsa_pubkey.txt"
										print(f"""Encrypting and writing to {filename}..."""			)
										__a:    List[str]		     =       encrypt_and_write_to_file(A__						,					A__						,					A__			)

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

					elif mode == "decrypt":
										__a:    List[Any]		     =       "rsa_privkey.txt"
										print(f"""Reading from {filename} and decrypting..."""			)
										__a:    int		     =       read_from_file_and_decrypt(A__						,					A__			)
										print("""writing decryption to rsa_decryption.txt..."""			)
										with open("""rsa_decryption.txt"""						,					"""w"""			) as dec:
															dec.write(A__			)

										print("""\nDecryption:"""			)
										print(A__			)


if __name__ == "__main__":
			main()




from __future__ import annotations







def 	A (		A__		,		A__		,		A__		,		A__			):

     # Base Case
     if counter == 0 or capacity == 0:
          return 0

     # If weight of the nth item is more than Knapsack of capacity,
     #   then this item cannot be included in the optimal solution,
     # else return the maximum of two cases:
     #   (1) nth item included
     #   (2) not included
     if weights[counter - 1] > capacity:
          return knapsack(A__		,		A__		,		A__		,		counter - 1			)
     else:
          UpperCAmelCase    :					List[str]			=      capacity - weights[counter - 1]
          UpperCAmelCase    :					Tuple			=      values[counter - 1] + knapsack(
              A__		,		A__		,		A__		,		counter - 1			)
          UpperCAmelCase    :					Optional[int]			=      knapsack(A__		,		A__		,		A__		,		counter - 1			)
          return max(A__		,		A__			)


if __name__ == "__main__":
      import doctest

      doctest.testmod()



