
"""simple docstring"""






import os
import sys

from . import rsa_key_generator as rkg

__UpperCAmelCase 					=    1_28
__UpperCAmelCase 					=    2_56






def 		_snake_case			(      lowercase__						:    str ,	lowercase__						:    int = DEFAULT_BLOCK_SIZE						)    ->							list[int]:


			'''simple docstring'''





			lowerCAmelCase_       :Optional[Any]     	=    message.encode("""ascii"""						)

			lowerCAmelCase_       :List[Any]     	=    []
			for block_start in range(0 ,	len(UpperCamelCase__						) ,	UpperCamelCase__						):
						lowerCAmelCase_       :Dict     	=    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 		_snake_case			(      lowercase__						:    list[int] ,	lowercase__						:    int ,	lowercase__						:    int = DEFAULT_BLOCK_SIZE						)    ->							str:


			'''simple docstring'''





			lowerCAmelCase_       :list[str]     	=    []
			for block_int in block_ints:
						lowerCAmelCase_       :list[str]     	=    []
						for i in range(block_size - 1 ,	-1 ,	-1						):
									if len(UpperCamelCase__						) + i < message_length:
												lowerCAmelCase_       :Optional[int]     	=    block_int // (BYTE_SIZE**i)
												lowerCAmelCase_       :Union[str, Any]     	=    block_int % (BYTE_SIZE**i)
												block_message.insert(0 ,	chr(UpperCamelCase__						)						)
						message.extend(UpperCamelCase__						)
			return "".join(UpperCamelCase__						)






def 		_snake_case			(      lowercase__						:    str ,	lowercase__						:    tuple[int, int] ,	lowercase__						:    int = DEFAULT_BLOCK_SIZE						)    ->							list[int]:


			'''simple docstring'''





			lowerCAmelCase_       :Optional[Any]     	=    []
			lowerCAmelCase_       :Any     	=    key

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






def 		_snake_case			(      lowercase__						:    list[int] ,	lowercase__						:    int ,	lowercase__						:    tuple[int, int] ,	lowercase__						:    int = DEFAULT_BLOCK_SIZE ,	)    ->							str:


			'''simple docstring'''





			lowerCAmelCase_       :int     	=    []
			lowerCAmelCase_       :List[str]     	=    key
			for block in encrypted_blocks:
						decrypted_blocks.append(pow(UpperCamelCase__ ,	UpperCamelCase__ ,	UpperCamelCase__						)						)
			return get_text_from_blocks(UpperCamelCase__ ,	UpperCamelCase__ ,	UpperCamelCase__						)






def 		_snake_case			(      lowercase__						:    str						)    ->							tuple[int, int, int]:


			'''simple docstring'''





			with open(UpperCamelCase__						) as fo:
						lowerCAmelCase_       :Dict     	=    fo.read()
			lowerCAmelCase_       :str     	=    content.split(""","""						)
			return (int(UpperCamelCase__						), int(UpperCamelCase__						), int(UpperCamelCase__						))






def 		_snake_case			(      lowercase__						:    str ,	lowercase__						:    str ,	lowercase__						:    str ,	lowercase__						:    int = DEFAULT_BLOCK_SIZE ,	)    ->							str:


			'''simple docstring'''





			lowerCAmelCase_       :List[str]     	=    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__						)						)

			lowerCAmelCase_       :Any     	=    [str(UpperCamelCase__						) for i in encrypt_message(UpperCamelCase__ ,	(n, e) ,	UpperCamelCase__						)]

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






def 		_snake_case			(      lowercase__						:    str ,	lowercase__						:    str						)    ->							str:


			'''simple docstring'''





			lowerCAmelCase_       :Optional[int]     	=    read_key_file(UpperCamelCase__						)
			with open(UpperCamelCase__						) as fo:
						lowerCAmelCase_       :List[Any]     	=    fo.read()
			lowerCAmelCase_       :str     	=    content.split("""_"""						)
			lowerCAmelCase_       :int     	=    int(UpperCamelCase__						)
			lowerCAmelCase_       :List[str]     	=    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__						)						)

			lowerCAmelCase_       :str     	=    []
			for block in encrypted_message.split(""","""						):
						encrypted_blocks.append(int(UpperCamelCase__						)						)

			return decrypt_message(UpperCamelCase__ ,	UpperCamelCase__ ,	(n, d) ,	UpperCamelCase__						)






def 		_snake_case			(      )    ->							None:


			'''simple docstring'''





			lowerCAmelCase_       :Dict     	=    '''encrypted_file.txt'''
			lowerCAmelCase_       :Optional[Any]     	=    input(r"""Encrypt\Decrypt [e\d]: """						)

			if response.lower().startswith("""e"""						):
						lowerCAmelCase_       :int     	=    '''encrypt'''
			elif response.lower().startswith("""d"""						):
						lowerCAmelCase_       :Dict     	=    '''decrypt'''

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

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

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

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






import timeit


class 	_lowercase    :


   def __init__(			self     , _UpperCAmelCase       ):
       if isinstance(_UpperCAmelCase     , _UpperCAmelCase       ):  # Initializes a matrix identical to the one provided.
           A							:							List[Any]				=    arg
           A							:							Dict				=    len(_UpperCAmelCase       )
       else:  # Initializes a square matrix of the given size and set values to zero.
           A							:							str				=    arg
           A							:							Union[str, Any]				=    [[0 for _ in range(self.n       )] for _ in range(self.n       )]


   def __mul__(			self     , _UpperCAmelCase       ):
       A							:							List[str]				=    Matrix(self.n       )
       for i in range(self.n       ):
           for j in range(self.n       ):
               for k in range(self.n       ):
                   matrix.t[i][j] += self.t[i][k] * b.t[k][j]
       return matrix







def 				_lowerCamelCase(	UpperCamelCase__     :			Union[str, Any]     ,							UpperCamelCase__     :			int		)		->	Union[str, Any]:
    A							:							Tuple				=    Matrix([[1, 0], [0, 1]]		)
    while b > 0:
        if b & 1:
            matrix *= a
        a *= a
        b >>= 1
    return matrix
def 				_lowerCamelCase(	UpperCamelCase__     :			int     ,							UpperCamelCase__     :			Tuple     ,							UpperCamelCase__     :			Any		)		->	Any:
    # Trivial Cases
    if n == 1:
        return fa
    elif n == 2:
        return fa
    A							:							Optional[Any]				=    Matrix([[1, 1], [1, 0]]		)
    A							:							int				=    modular_exponentiation(UpperCamelCase__     ,							n - 2		)
    return fa * matrix.t[0][0] + fa * matrix.t[0][1]
def 				_lowerCamelCase(	UpperCamelCase__     :			str     ,							UpperCamelCase__     :			Optional[Any]     ,							UpperCamelCase__     :			Any		)		->	List[Any]:
    # Trivial Cases
    if n == 1:
        return fa
    elif n == 2:
        return fa

    A							:							str				=    fa
    A							:							List[Any]				=    fa
    n -= 2

    while n > 0:
        A,						A							:							List[str]				=    fn_a + fn_a, fn_a
        n -= 1

    return fn_a
def 				_lowerCamelCase(	)		->	Union[str, Any]:
    A							:							Any				=    '''
from random import randint
from __main__ import fibonacci_with_matrix_exponentiation
'''
    A							:							Optional[int]				=    '''fibonacci_with_matrix_exponentiation(randint(1,70000), 1, 1)'''
    A							:							List[Any]				=    timeit.timeit(setup=UpperCamelCase__     ,							stmt=UpperCamelCase__     ,							number=100		)
    print('''With matrix exponentiation the average execution time is '''     ,							exec_time / 100		)
    return exec_time
def 				_lowerCamelCase(	)		->	List[Any]:
    A							:							str				=    '''
from random import randint
from __main__ import simple_fibonacci
'''
    A							:							Any				=    '''simple_fibonacci(randint(1,70000), 1, 1)'''
    A							:							str				=    timeit.timeit(setup=UpperCamelCase__     ,							stmt=UpperCamelCase__     ,							number=100		)
    print(
        '''Without matrix exponentiation the average execution time is '''     ,							exec_time / 100		)
    return exec_time
def 				_lowerCamelCase(	)		->	Optional[Any]:
    matrix_exponentiation_time()
    simple_fibonacci_time()


if __name__ == "__main__":
     main()
