


import os
import sys

from . import rsa_key_generator as rkg

lowerCamelCase						 =	1_28
lowerCamelCase						 =	2_56




def      a_				(   SCREAMING_SNAKE_CASE__ :				str		,      SCREAMING_SNAKE_CASE__ :				int = DEFAULT_BLOCK_SIZE					):
       '''simple docstring'''





       _lowerCamelCase	:		Dict          =message.encode('ascii'					)

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




def      a_				(   SCREAMING_SNAKE_CASE__ :				list[int]		,      SCREAMING_SNAKE_CASE__ :				int		,      SCREAMING_SNAKE_CASE__ :				int = DEFAULT_BLOCK_SIZE					):
       '''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(SCREAMING_SNAKE_CASE__					) + i < message_length:
                            _lowerCamelCase	:		str          =block_int // (BYTE_SIZE**i)
                            _lowerCamelCase	:		Any          =block_int % (BYTE_SIZE**i)
                            block_message.insert(0		,      chr(SCREAMING_SNAKE_CASE__					)					)
              message.extend(SCREAMING_SNAKE_CASE__					)
       return "".join(SCREAMING_SNAKE_CASE__					)




def      a_				(   SCREAMING_SNAKE_CASE__ :				str		,      SCREAMING_SNAKE_CASE__ :				tuple[int, int]		,      SCREAMING_SNAKE_CASE__ :				int = DEFAULT_BLOCK_SIZE					):
       '''simple docstring'''





       _lowerCamelCase	:		Any          =[]
       _lowerCamelCase     ,					_lowerCamelCase	:		int          =key

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




def      a_				(   SCREAMING_SNAKE_CASE__ :				list[int]		,      SCREAMING_SNAKE_CASE__ :				int		,      SCREAMING_SNAKE_CASE__ :				tuple[int, int]		,      SCREAMING_SNAKE_CASE__ :				int = DEFAULT_BLOCK_SIZE		,      ):
       '''simple docstring'''





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




def      a_				(   SCREAMING_SNAKE_CASE__ :				str					):
       '''simple docstring'''





       with open(SCREAMING_SNAKE_CASE__					) as fo:
              _lowerCamelCase	:		List[str]          =fo.read()
       _lowerCamelCase     ,					_lowerCamelCase     ,					_lowerCamelCase	:		Tuple          =content.split(','					)
       return (int(SCREAMING_SNAKE_CASE__					), int(SCREAMING_SNAKE_CASE__					), int(SCREAMING_SNAKE_CASE__					))




def      a_				(   SCREAMING_SNAKE_CASE__ :				str		,      SCREAMING_SNAKE_CASE__ :				str		,      SCREAMING_SNAKE_CASE__ :				str		,      SCREAMING_SNAKE_CASE__ :				int = DEFAULT_BLOCK_SIZE		,      ):
       '''simple docstring'''





       _lowerCamelCase     ,					_lowerCamelCase     ,					_lowerCamelCase	:		Tuple          =read_key_file(SCREAMING_SNAKE_CASE__					)
       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		,      SCREAMING_SNAKE_CASE__					)					)

       _lowerCamelCase	:		Any          =[str(SCREAMING_SNAKE_CASE__					) for i in encrypt_message(SCREAMING_SNAKE_CASE__		,      (n, e)		,      SCREAMING_SNAKE_CASE__					)]

       _lowerCamelCase	:		Optional[int]          =','.join(SCREAMING_SNAKE_CASE__					)
       _lowerCamelCase	:		List[str]          =F'''{len(SCREAMING_SNAKE_CASE__					)}_{block_size}_{encrypted_content}'''
       with open(SCREAMING_SNAKE_CASE__		,      'w'					) as fo:
              fo.write(SCREAMING_SNAKE_CASE__					)
       return encrypted_content




def      a_				(   SCREAMING_SNAKE_CASE__ :				str		,      SCREAMING_SNAKE_CASE__ :				str					):
       '''simple docstring'''





       _lowerCamelCase     ,					_lowerCamelCase     ,					_lowerCamelCase	:		str          =read_key_file(SCREAMING_SNAKE_CASE__					)
       with open(SCREAMING_SNAKE_CASE__					) as fo:
              _lowerCamelCase	:		int          =fo.read()
       _lowerCamelCase     ,					_lowerCamelCase     ,					_lowerCamelCase	:		Union[str, Any]          =content.split('_'					)
       _lowerCamelCase	:		int          =int(SCREAMING_SNAKE_CASE__					)
       _lowerCamelCase	:		Optional[int]          =int(SCREAMING_SNAKE_CASE__					)

       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		,      SCREAMING_SNAKE_CASE__					)					)

       _lowerCamelCase	:		List[str]          =[]
       for block in encrypted_message.split(','					):
              encrypted_blocks.append(int(SCREAMING_SNAKE_CASE__					)					)

       return decrypt_message(SCREAMING_SNAKE_CASE__		,      SCREAMING_SNAKE_CASE__		,      (n, d)		,      SCREAMING_SNAKE_CASE__					)




def      a_				(   ):
       '''simple docstring'''





       _lowerCamelCase	:		Union[str, Any]          ='encrypted_file.txt'
       _lowerCamelCase	:		Optional[Any]          =input(r'Encrypt\Decrypt [e\d]: '					)

       if response.lower().startswith('e'					):
              _lowerCamelCase	:		Union[str, Any]          ='encrypt'
       elif response.lower().startswith('d'					):
              _lowerCamelCase	:		List[Any]          ='decrypt'

       if mode == "encrypt":
              if not os.path.exists('rsa_pubkey.txt'					):
                     rkg.make_key_files('rsa'		,      1_024					)

              _lowerCamelCase	:		Union[str, Any]          =input('\nEnter message: '					)
              _lowerCamelCase	:		List[Any]          ='rsa_pubkey.txt'
              print(F'''Encrypting and writing to {filename}...'''					)
              _lowerCamelCase	:		Optional[int]          =encrypt_and_write_to_file(SCREAMING_SNAKE_CASE__		,      SCREAMING_SNAKE_CASE__		,      SCREAMING_SNAKE_CASE__					)

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

       elif mode == "decrypt":
              _lowerCamelCase	:		List[Any]          ='rsa_privkey.txt'
              print(F'''Reading from {filename} and decrypting...'''					)
              _lowerCamelCase	:		Dict          =read_from_file_and_decrypt(SCREAMING_SNAKE_CASE__		,      SCREAMING_SNAKE_CASE__					)
              print('writing decryption to rsa_decryption.txt...'					)
              with open('rsa_decryption.txt'		,      'w'					) as dec:
                     dec.write(SCREAMING_SNAKE_CASE__					)

              print('\nDecryption:'					)
              print(SCREAMING_SNAKE_CASE__					)


if __name__ == "__main__":
 main()






import numpy as np
from cva import COLOR_BGR2GRAY, cvtColor, imread, imshow, waitKey

from digital_image_processing.filters.convolve import img_convolve




def      a_				(   SCREAMING_SNAKE_CASE__ :				Optional[Any]					):
       '''simple docstring'''





       _lowerCamelCase	:		List[str]          =np.array([[-1, 0, 1], [-2, 0, 2], [-1, 0, 1]]					)
       _lowerCamelCase	:		Dict          =np.array([[1, 2, 1], [0, 0, 0], [-1, -2, -1]]					)

       _lowerCamelCase	:		Optional[Any]          =np.abs(img_convolve(SCREAMING_SNAKE_CASE__		,      SCREAMING_SNAKE_CASE__					)					)
       _lowerCamelCase	:		Optional[int]          =np.abs(img_convolve(SCREAMING_SNAKE_CASE__		,      SCREAMING_SNAKE_CASE__					)					)
       # modify the pix within [0, 255]
       _lowerCamelCase	:		Optional[int]          =dst_x * 255 / np.max(SCREAMING_SNAKE_CASE__					)
       _lowerCamelCase	:		Any          =dst_y * 255 / np.max(SCREAMING_SNAKE_CASE__					)

       _lowerCamelCase	:		Tuple          =np.sqrt((np.square(SCREAMING_SNAKE_CASE__					)) + (np.square(SCREAMING_SNAKE_CASE__					))					)
       _lowerCamelCase	:		int          =dst_xy * 255 / np.max(SCREAMING_SNAKE_CASE__					)
       _lowerCamelCase	:		int          =dst_xy.astype(np.uinta					)

       _lowerCamelCase	:		Optional[int]          =np.arctana(SCREAMING_SNAKE_CASE__		,      SCREAMING_SNAKE_CASE__					)
       return dst, theta


if __name__ == "__main__":
 # read original image
 lowerCamelCase						 =	imread('../image_data/lena.jpg')
 # turn image in gray scale value
 lowerCamelCase						 =	cvtColor(img, COLOR_BGR2GRAY)

 lowerCamelCase ,    lowerCamelCase						 =	sobel_filter(gray)

 # show result images
 imshow('sobel filter', sobel_grad)
 imshow('sobel theta', sobel_theta)
 waitKey(0)


